1
|
Rauf S, Bilal RM, Li J, Vaseem M, Ahmad AN, Shamim A. Fully Screen-Printed and Gentle-to-Skin Wet ECG Electrodes with Compact Wireless Readout for Cardiac Diagnosis and Remote Monitoring. ACS Nano 2024; 18:10074-10087. [PMID: 38526458 PMCID: PMC11022287 DOI: 10.1021/acsnano.3c12477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Recent advances in electrocardiogram (ECG) diagnosis and monitoring have triggered a demand for smart and wearable ECG electrodes and readout systems. Here, we report the development of a fully screen-printed gentle-to-skin wet ECG electrode integrated with a scaled-down printed circuit board (PCB) packaged inside a 3D-printed antenna-on-package (AoP). All three components of the wet ECG electrode (i.e., silver nanowire-based conductive part, electrode gel, and adhesive gel) are screen-printed on a flexible plastic substrate and only require 265 times less metal for the conductive part and 176 times less ECG electrode gel than the standard commercial wet ECG electrodes. In addition, our electrically small AoP achieved a maximum read range of 142 m and offers a 4 times larger wireless communication range than the typical commercial chip antenna. The adult volunteers' study results indicated that our system recorded ECG data that correlated well with data from a commercial ECG system and electrodes. Furthermore, in the context of a 12-lead ECG diagnostic system, the fully printed wet ECG electrodes demonstrated a performance similar to that of commercially available wet ECG electrodes while being gentle on the skin. This was confirmed through a blind review method by two cardiology consultants and one family medicine consultant, validating the consistency of the diagnostic information obtained from both electrodes. In conclusion, these findings highlight the potential of fully screen-printed wet ECG electrodes for both monitoring and diagnostic purposes. These electrodes could serve as potential candidates for clinical practice, and the screen-printing method has the capability to facilitate industrial mass production.
Collapse
Affiliation(s)
- Sakandar Rauf
- Electrical
and Computer Engineering, CEMSE, King Abdullah
University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Rana M. Bilal
- Electrical
and Computer Engineering, CEMSE, King Abdullah
University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jiajun Li
- Electrical
and Computer Engineering, CEMSE, King Abdullah
University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohammad Vaseem
- Electrical
and Computer Engineering, CEMSE, King Abdullah
University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Adeel N. Ahmad
- School
of Medicine, University of Nottingham, Nottingham NG7 2UH, United Kingdom
| | - Atif Shamim
- Electrical
and Computer Engineering, CEMSE, King Abdullah
University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| |
Collapse
|
2
|
Zhou Y, Feng B, Chen L, Fan F, Ji Z, Duan H. Wafer-Recyclable, Eco-Friendly, and Multiscale Dry Transfer Printing by Transferable Photoresist for Flexible Epidermal Electronics. ACS Appl Mater Interfaces 2024; 16:13525-13533. [PMID: 38467516 DOI: 10.1021/acsami.3c18576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Flexible electronics have been of great interest in the past few decades for their wide-ranging applications in health monitoring, human-machine interaction, artificial intelligence, and biomedical engineering. Currently, transfer printing is a popular technology for flexible electronics manufacturing. However, typical sacrificial intermediate layer-based transfer printing through chemical reactions results in a series of challenges, such as time consumption and interface incompatibility. In this paper, we have developed a time-saving, wafer-recyclable, eco-friendly, and multiscale transfer printing method by using a stable transferable photoresist. Demonstration of photoresist with various, high-resolution, and multiscale patterns from the donor substrate of silicon wafer to different flexible polymer substrates without any damage is conducted using the as-developed dry transfer printing process. Notably, by utilizing the photoresist patterns as conformal masks and combining them with physical vapor deposition and dry lift-off processes, we have achieved in situ fabrication of metal patterns on flexible substrates. Furthermore, a mechanical experiment has been conducted to demonstrate the mechanism of photoresist transfer printing and dry lift-off processes. Finally, we demonstrated the application of in situ fabricated electrode devices for collecting electromyography and electrocardiogram signals. Compared to commercially available hydrogel electrodes, our electrodes exhibited higher sensitivity, greater stability, and the ability to achieve long-term health monitoring.
Collapse
Affiliation(s)
- Yu Zhou
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| | - Bo Feng
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| | - Lei Chen
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| | - Fu Fan
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| | - Zhiqiang Ji
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| | - Huigao Duan
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, PR China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, PR China
| |
Collapse
|
3
|
Wang M, Li D, Xu H, Wang L, Li Y, Li G, Li J, Han W. Flexible Ti 3 C 2 T x MXene Bonded Bio-Derived Carbon Fibers Support Tin Disulfide for Fast and Stable Sodium Storage. Small 2024; 20:e2305530. [PMID: 37926758 DOI: 10.1002/smll.202305530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/16/2023] [Indexed: 11/07/2023]
Abstract
High energy density and flexible electrodes, which have high mechanical properties and electrochemical stability, are critical to the development of wearable electronics. In this work, a free-standing MXene bonded SnS2 composited nitrogen-doped carbon fibers (MXene/SnS2 @NCFs) film is reported as a flexible anode for sodium-ion batteries. SnS2 nanoparticles with high-capacity properties are covalently decorated in bio-derived nitrogen-doped 1D carbon fibers (SnS2 @NCFs) and further assembled with highly conductive MXene sheets. The addition of bacterial cellulose (BC) can further improve the flexibility of the film. The unique 3D structure of points, lines, and planes can not only offset the disadvantage of low conductivity of SnS2 nanoparticles but also expand the distance between MXene sheets, which is conducive to the penetration of electrolytes. More importantly, the MXene sheets and N-doped 1D carbon fibers (NCFs) can accommodate the large volume expansion of SnS2 nanoparticles and trap polysulfide during the cycle. The MXene/SnS2 @NCFs film exhibits better sodium storage and excellent rate performance compared to the SnS2 @NCFs. The in situ XRD and ex situ (XRD, XPS, and HRTEM) techniques are used to analyze the sodiation process and to deeply study the reaction mechanism of the films. Finally, the quasi-solid-state full cells with MXene/SnS2 @NCFs and Na3 V2 (PO4 )3 @carbon cloth (NVP@CC) fully demonstrate the application potential of the flexible electrodes.
Collapse
Affiliation(s)
- Mingrui Wang
- College of Physics, the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Dongdong Li
- College of Physics, the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Hao Xu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Lili Wang
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Yilin Li
- College of Physics, the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Guangshe Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Junzhi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Wei Han
- College of Physics, the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| |
Collapse
|
4
|
Xue H, Shi Y, Tian W, Cao M, Cao H, Na Z, Jiang G, Jin Z, Lang MF, Liu Y, Sun J. Silver Nanowires-Based Flexible Gold Electrode Overcoming Interior Impedance of Nanomaterial Electrodes. Small 2024:e2307328. [PMID: 38196157 DOI: 10.1002/smll.202307328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/14/2023] [Indexed: 01/11/2024]
Abstract
In the development of nanomaterial electrodes for improved electrocatalytic activity, much attention is paid to the compositions, lattice, and surface morphologies. In this study, a new concept to enhance electrocatalytic activity is proposed by reducing impedance inside nanomaterial electrodes. Gold nanodendrites (AuNDs) are grown along silver nanowires (AgNWs) on flexible polydimethylsiloxane (PDMS) support. The AuNDs/AgNWs/PDMS electrode affords an oxidative peak current density of 50 mA cm-2 for ethanol electrooxidation, a value ≈20 times higher than those in the literature do. Electrochemical impedance spectroscopy (EIS) demonstrates the significant contribution of the AgNWs to reduce impedance. The peak current densities for ethanol electrooxidation are decreased 7.5-fold when the AgNWs are electrolytically corroded. By in situ surface-enhanced Raman spectroscopy (SERS) and density functional theory (DFT) simulation, it is validated that the ethanol electrooxidation favors the production of acetic acid with undetectable CO, resulting in a more complete oxidation and long-term stability, while the AgNWs corrosion greatly decreases acetic acid production. This novel strategy for fabricating nanomaterial electrodes using AgNWs as a charge transfer conduit may stimulate insights into the design of nanomaterial electrodes.
Collapse
Affiliation(s)
- Hongsheng Xue
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, 116001, China
| | - Yacheng Shi
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Lab of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Wenshuai Tian
- College of Chemical and Environmental Engineering, Dalian Key Laboratory of Oligosaccharide Recombination and Recombinant Protein Modification, Dalian University, Dalian, Liaoning, 116622, China
- College of Marine Engineering, Dalian Maritime University, Dalian, Liaoning, 116026, China
| | - Meng Cao
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China
| | - Houyong Cao
- College of Chemical and Environmental Engineering, Dalian Key Laboratory of Oligosaccharide Recombination and Recombinant Protein Modification, Dalian University, Dalian, Liaoning, 116622, China
| | - Zhaolin Na
- College of Chemical and Environmental Engineering, Dalian Key Laboratory of Oligosaccharide Recombination and Recombinant Protein Modification, Dalian University, Dalian, Liaoning, 116622, China
| | - Ge Jiang
- College of Life and Health, Dalian University, Dalian, Liaoning, 116622, China
| | - Zhengmu Jin
- Dalian Ofei Electronics CO.,LTD., Dalian, Liaoning, 116021, China
| | - Ming-Fei Lang
- Medical College, Dalian Key Laboratory of Oligosaccharide Recombination and Recombinant Protein Modification, Dalian University, Dalian, Liaoning, 116622, China
| | - Yang Liu
- Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Lab of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Jing Sun
- College of Chemical and Environmental Engineering, Dalian Key Laboratory of Oligosaccharide Recombination and Recombinant Protein Modification, Dalian University, Dalian, Liaoning, 116622, China
| |
Collapse
|
5
|
Simonenko TL, Simonenko NP, Gorobtsov PY, Simonenko EP, Kuznetsov NT. Hydrothermal Synthesis of a Cellular NiO Film on Carbon Paper as a Promising Way to Obtain a Hierarchically Organized Electrode for a Flexible Supercapacitor. Materials (Basel) 2023; 16:5208. [PMID: 37569912 PMCID: PMC10420231 DOI: 10.3390/ma16155208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/20/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023]
Abstract
The formation of a cellular hierarchically organized NiO film on a carbon paper substrate under hydrothermal conditions using triethanolamine as a base has been studied. The thermal behavior of the carbon paper substrate with the applied semi-product shell was studied using synchronous thermal analysis (TGA/DSC) and it was demonstrated that such modification of the material surface leads to a noticeable increase in its thermal stability. Using scanning electron microscopy (SEM), it was shown that the NiO film grown on the carbon fiber surface is characterized by a complex cellular morphology, organized by partially layered individual nanosheets of about 4-5 nm thickness and lateral dimensions up to 1-2 μm, some edges and folds of which are located vertically relative to the carbon fiber surface. The surface of the obtained material was also examined using atomic force microscopy (AFM), and the electronic work function of the oxide shell surface was evaluated using the Kelvin probe force microscopy (KPFM) method. The electrochemical parameters of the obtained flexible NiO/CP electrode were analyzed: the dependence of the specific capacitance on the current density was determined and the stability of the material during cycling was studied, which showed that the proposed approach is promising for manufacturing hierarchically organized electrodes for flexible supercapacitors.
Collapse
Affiliation(s)
| | | | | | - Elizaveta P. Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr., Moscow 119991, Russia; (T.L.S.); (N.P.S.); (P.Y.G.); (N.T.K.)
| | | |
Collapse
|
6
|
Sun S, Dang J, Pan Q, Zhang C, Liu S. pH-Responsive Flexible Copper Electrode with Switchable Wettability for Electrocatalytic Hydrogen/Oxygen Evolution Reactions and Urea Oxidation Reaction. ACS Appl Mater Interfaces 2023. [PMID: 37219023 DOI: 10.1021/acsami.3c03934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The development of a pH-responsive electrode with switchable wettability is of great importance in water electrolysis. Here, we designed a pH-responsive copper mesh/copolymer electrode to eliminate the adhesion of hydrogen/oxygen bubbles under high-speed water electrolysis by adjusting the wettability of the electrode surface. Furthermore, the kinetics of water oxidation and urea oxidation reactions on the as-prepared copper mesh/copolymer electrode were explored. Most noteworthy, the flexible water electrolysis performance of the as-prepared pH-responsive electrode was investigated for the first time. The results indicate that the copper mesh/copolymer electrode accelerates the hydrogen evolution reaction, oxygen evolution reaction, and urea oxidation reaction under better surface wettability, while it inhibits these reactions under poor surface wettability. The results provide insight into the development of unusual water electrolyzers with different pH electrolytes and the design of water electrolysis electrodes.
Collapse
Affiliation(s)
- Shuai Sun
- School of Materials Science and Engineering, Institute of New Catalytic Materials Science, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Jingyun Dang
- School of Materials Science and Engineering, Institute of New Catalytic Materials Science, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Qingyan Pan
- School of Materials Science and Engineering, Institute of New Catalytic Materials Science, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Cui Zhang
- School of Materials Science and Engineering, Institute of New Catalytic Materials Science, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Shuangxi Liu
- School of Materials Science and Engineering, Institute of New Catalytic Materials Science, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
- Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education, Nankai University, Tianjin 300071, China
| |
Collapse
|
7
|
Chu HI, Ho HY, Huang YJ, Tsai DS, Lee CP. Synthesis of non-planar graphene-wrapped copper nanoparticles with iron(III) oxide decoration for high performance supercapacitors. Nanotechnology 2023; 34:285401. [PMID: 37019102 DOI: 10.1088/1361-6528/acca8a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
The performance of supercapacitors strongly depends on the electrochemical characterizations of electrode materials. Herein, a composite material consisted of iron(III) oxide (Fe2O3) and multilayer graphene-wrapped copper nanoparticles (Fe2O3/MLG-Cu NPs) is fabricated on a flexible carbon cloth (CC) substrate via two-step synthesis process for supercapacitor application. Where, MLG-Cu NPs are prepared on CC by one-step chemical vapor deposition synthesis approach; thereafter, the Fe2O3is further deposited on the MLG-Cu NPs/CC via successive ionic layer adsorption and reaction method. The related material characterizations of Fe2O3/MLG-Cu NPs are well investigated by scanning electron microscopic, high resolution transmission electron microscopy), Raman spectrometer and X-ray photoelectron spectroscopy; the electrochemical behaviors of the pertinent electrodes are studied by cyclic voltammogram, galvanostatic charge/discharge (GCD) and electrochemical impedance spectroscopy measurements. The flexible electrode with Fe2O3/MLG-Cu NPs composites exhibits the best specific capacitance of 1092.6 mF cm-2at 1 A g-1, which is much higher than those of electrodes with Fe2O3(863.7 mF cm-2), MLG-Cu NPs (257.4 mF cm-2), multilayer graphene hollow balls (MLGHBs, 14.4 mF cm-2) and Fe2O3/MLGHBs (287.2 mF cm-2). Fe2O3/MLG-Cu NPs electrode also exhibits an excellent GCD durability, and its capacitance remains 88% of its original value after 5000 cycles of the GCD process. Finally, a supercapacitor system consisted of four Fe2O3/MLG-Cu NPs/CC electrodes can efficiently power various light-emitting diodes (i.e. red, yellow, green, and blue lights), demonstrating the practical application of Fe2O3/MLG-Cu NPs/CC electrode.
Collapse
Affiliation(s)
- Hsuan-I Chu
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Hsiao-Yun Ho
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Yi-June Huang
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, United States of America
| | - Dung-Sheng Tsai
- Department of Electronic Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chuan-Pei Lee
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| |
Collapse
|
8
|
Lycke R, Kim R, Zolotavin P, Montes J, Sun Y, Koszeghy A, Altun E, Noble B, Yin R, He F, Totah N, Xie C, Luan L. Low-threshold, high-resolution, chronically stable intracortical microstimulation by ultra flexible electrodes. bioRxiv 2023:2023.02.20.529295. [PMID: 36865195 PMCID: PMC9980065 DOI: 10.1101/2023.02.20.529295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Intracortical microstimulation (ICMS) enables applications ranging from neuroprosthetics to causal circuit manipulations. However, the resolution, efficacy, and chronic stability of neuromodulation is often compromised by the adverse tissue responses to the indwelling electrodes. Here we engineer ultraflexible stim-Nanoelectronic Threads (StimNETs) and demonstrate low activation threshold, high resolution, and chronically stable ICMS in awake, behaving mouse models. In vivo two-photon imaging reveals that StimNETs remain seamlessly integrated with the nervous tissue throughout chronic stimulation periods and elicit stable, focal neuronal activation at low currents of 2 μA. Importantly, StimNETs evoke longitudinally stable behavioral responses for over eight months at markedly low charge injection of 0.25 nC/phase. Quantified histological analysis show that chronic ICMS by StimNETs induce no neuronal degeneration or glial scarring. These results suggest that tissue-integrated electrodes provide a path for robust, long-lasting, spatially-selective neuromodulation at low currents which lessen risks of tissue damage or exacerbation of off-target side-effects.
Collapse
Affiliation(s)
- Roy Lycke
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Robin Kim
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Pavlo Zolotavin
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Jon Montes
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
- Department of Bioenginering; Rice University; Houston; Texas; 77005, United States
| | - Yingchu Sun
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Aron Koszeghy
- Helsinki Institute of Life Science (HiLIFE); University of Helsinki; Helsinki; 00790; Finland
| | - Esra Altun
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
- Material Science and NanoEngineering; Rice University; Houston; Texas; 77005, United States
| | - Brian Noble
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
- Applied Physics Program; Rice University; Houston; Texas; 77005, United States
| | - Rongkang Yin
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Fei He
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
| | - Nelson Totah
- Helsinki Institute of Life Science (HiLIFE); University of Helsinki; Helsinki; 00790; Finland
- Faculty of Pharmacy; University of Helsinki; Helsinki; 00790; Finland
| | - Chong Xie
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
- Department of Bioenginering; Rice University; Houston; Texas; 77005, United States
| | - Lan Luan
- Department of Electrical and Computer Engineering; Rice University; Houston; Texas; 77005, United States
- Rice Neuroengineering Initiative; Rice University; Houston; Texas; 77005, United States
- Department of Bioenginering; Rice University; Houston; Texas; 77005, United States
| |
Collapse
|
9
|
Blasques RV, de Oliveira PR, Kalinke C, Brazaca LC, Crapnell RD, Bonacin JA, Banks CE, Janegitz BC. Flexible Label-Free Platinum and Bio-PET-Based Immunosensor for the Detection of SARS-CoV-2. Biosensors (Basel) 2023; 13:190. [PMID: 36831956 PMCID: PMC9954080 DOI: 10.3390/bios13020190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/14/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The demand for new devices that enable the detection of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) at a relatively low cost and that are fast and feasible to be used as point-of-care is required overtime on a large scale. In this sense, the use of sustainable materials, for example, the bio-based poly (ethylene terephthalate) (Bio-PET) can be an alternative to current standard diagnostics. In this work, we present a flexible disposable printed electrode based on a platinum thin film on Bio-PET as a substrate for the development of a sensor and immunosensor for the monitoring of COVID-19 biomarkers, by the detection of L-cysteine and the SARS-CoV-2 spike protein, respectively. The electrode was applied in conjunction with 3D printing technology to generate a portable and easy-to-analyze device with a low sample volume. For the L-cysteine determination, chronoamperometry was used, which achieved two linear dynamic ranges (LDR) of 3.98-39.0 μmol L-1 and 39.0-145 μmol L-1, and a limit of detection (LOD) of 0.70 μmol L-1. The detection of the SARS-CoV-2 spike protein was achieved by both square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS) by a label-free immunosensor, using potassium ferro-ferricyanide solution as the electrochemical probe. An LDR of 0.70-7.0 and 1.0-30 pmol L-1, with an LOD of 0.70 and 1.0 pmol L-1 were obtained by SWV and EIS, respectively. As a proof of concept, the immunosensor was successfully applied for the detection of the SARS-CoV-2 spike protein in enriched synthetic saliva samples, which demonstrates the potential of using the proposed sensor as an alternative platform for the diagnosis of COVID-19 in the future.
Collapse
Affiliation(s)
- Rodrigo Vieira Blasques
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
- Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos, Sorocaba 18052-780, Brazil
| | - Paulo Roberto de Oliveira
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | - Cristiane Kalinke
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil
| | - Laís Canniatti Brazaca
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Robert D. Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | | | - Craig E. Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | - Bruno Campos Janegitz
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
| |
Collapse
|
10
|
Ho HY, Chu HI, Huang YJ, Tsai DS, Lee CP. Polypyrrole-coated copper@graphene core-shell nanoparticles for supercapacitor application. Nanotechnology 2023; 34:125401. [PMID: 36542854 DOI: 10.1088/1361-6528/acad87] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The performance of supercapacitors strongly depends on the electrochemical characterizations of electrode materials. Herein, a composite material consisted of polypyrrole (PPy) and multilayer graphene-wrapped copper nanoparticles (PPy/MLG-Cu NPs) is fabricated on a flexible carbon cloth (CC) substrate via two-step synthesis process for supercapacitor application. Where, MLG-Cu NPs are prepared on CC by one-step chemical vapor deposition synthesis approach; thereafter, the PPy is further deposited on the MLG-Cu NPs/CC via electropolymerization. The related material characterizations of PPy/MLG-Cu NPs are well investigated by scanning electron microscopic, high resolution transmission electron microscopy, Raman spectrometer and x-ray photoelectron spectroscopy; the electrochemical behaviors of the pertinent electrodes are studied by cyclic voltammogram, galvanostatic charge/discharge and electrochemical impedance spectroscopy measurements. The flexible electrode with PPy/MLG-Cu NPs composites exhibits the best specific capacitance of 845.38 F g-1at 1 A g-1, which is much higher than those of electrodes with PPy (214.30 F g-1), MLG-Cu NPs (6.34 F g-1), multilayer graphene hollow balls (MLGHBs; 52.72 F g-1), and PPy/MLGHBs (237.84 F g-1). Finally, a supercapacitor system consisted of four PPy/MLG-Cu NPs/CC electrodes can efficiently power various light-emitting diodes (i.e. red, yellow, green and blue lighs), demonstrating the practical application of PPy/MLG-Cu NPs/CC electrode.
Collapse
Affiliation(s)
- Hsiao-Yun Ho
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Hsuan-I Chu
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Yi-June Huang
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, United States of America
| | - Dung-Sheng Tsai
- Department of Electronic Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chuan-Pei Lee
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| |
Collapse
|
11
|
Kong N, Lv K, Chen W, Guan J, Zhao P, Tao J, Zhang J. Natural Polymer Template for Low-Cost Producing High-Performance Ti 3C 2T x MXene Electrodes for Flexible Supercapacitors. ACS Appl Mater Interfaces 2022; 14:56877-56885. [PMID: 36521054 DOI: 10.1021/acsami.2c18559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
MXenes, two-dimensional (2D) transition-metal carbides and nitrides with high electrical conductivity, show outstanding potential for energy storage applications. However, the aggregation and restacking of 2D MXene nanosheets seriously decrease the performance of MXene-based electrodes. Instead of using high-cost artificial templates, herein, we select natural rubber (NR) latex-containing uniform sub-macroparticles as sacrificial templates and successfully construct three-dimensional interconnected porous MXene foam. This porous structure effectively prevents the restacking of MXene nanosheets and accelerates the transfer of electrolyte ions during charging and discharging, which significantly enhances capacitance and rate performance. By adjusting the loading of latex, we find that MXene foam (MXF)-70% provides both improved specific capacitance of 480 F g-1 at 2 mV s-1 and superior rate performance (42.1% residual at 1 V s-1) with excellent cycling stability of 97.1% capacitance retention after 10000 cycles at 50 mV s-1. Additionally, the low cost of natural rubber latex provides an alternate route to produce foam electrodes on a large scale for portable and integrated supercapacitors.
Collapse
Affiliation(s)
- Na Kong
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
- School of Life and Environmental Science, Deakin University, Waurn Ponds Campus, Geelong, Victoria3216, Australia
| | - Ke Lv
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan430062, China
| | - Wenting Chen
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
| | - Jie Guan
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
| | - Pengfei Zhao
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
| | - Jinlong Tao
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
- Lingnan Normal University, Zhanjiang524001, China
| | - Jizhen Zhang
- Hainan Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang524001, China
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong, Victoria3216, Australia
| |
Collapse
|
12
|
Sun BY, Cheang WH, Chou SC, Chiao JC, Wu PW. Fabrication of Cu Micromembrane as a Flexible Electrode. Nanomaterials (Basel) 2022; 12:3829. [PMID: 36364606 PMCID: PMC9654814 DOI: 10.3390/nano12213829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
A Cu micromembrane is successfully fabricated and validated as a porous flexible electrode. The Cu micromembrane is prepared by functionalizing individual polypropylene (PP) fibers in a polypropylene micromembrane (PPMM) using a mixture of polydopamine (PDA) and polyethyleneimine (PEI). The mixture of PDA and PEI provides adhesive, wetting, and reducing functionalities that facilitate subsequent Ag activation and Cu electroless plating. Scanning electron microscopy reveals conformal deposition of Cu on individual PP fibers. Porometer analysis indicates that the porous nature of PPMM is properly maintained. The Cu micromembrane demonstrates impressive electrical conductivities in both the X direction (1.04 ± 0.21 S/cm) and Z direction (2.99 ± 0.54 × 10-3 S/cm). In addition, its tensile strength and strain are better than those of pristine PPMM. The Cu micromembrane is flexible and mechanically robust enough to sustain 10,000 bending cycles with moderate deterioration. Thermogravimetric analysis shows a thermal stability of 400 °C and an effective Cu loading of 5.36 mg/cm2. Cyclic voltammetric measurements reveal that the Cu micromembrane has an electrochemical surface area of 277.8 cm2 in a 1 cm2 geometric area (a roughness factor of 227.81), a value that is 45 times greater than that of planar Cu foil.
Collapse
Affiliation(s)
- Bo-Yao Sun
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Wai-Hong Cheang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Shih-Cheng Chou
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Jung-Chih Chiao
- Department of Electrical and Computer Engineering, Southern Methodist University, Dallas, TX 75205, USA
| | - Pu-Wei Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| |
Collapse
|
13
|
Sansotera M, Marona V, Marziani P, Dintcheva NT, Morici E, Arrigo R, Bussetti G, Navarrini W, Magagnin L. Flexible Perfluoropolyethers-Functionalized CNTs-Based UHMWPE Composites: A Study on Hydrogen Evolution, Conductivity and Thermal Stability. Materials (Basel) 2022; 15:6883. [PMID: 36234224 PMCID: PMC9571002 DOI: 10.3390/ma15196883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Flexible conductive composites based on ultra-high molecular weight polyethylene (UHMWPE) filled with multi-walled carbon nanotubes (CNTs) modified by perfluoropolyethers (PFPEs) were produced. The bonding of PFPE chains, added in 1:1 and 2:1 weight ratios, on CNTs influences the dispersion of nanotubes in the UHMWPE matrix due to the non-polar nature of the polymer, facilitating the formation of nanofillers-rich conductive pathways and improving composites' electrical conductivity (two to five orders of magnitude more) in comparison to UHMWPE-based nanocomposites obtained with pristine CNTs. Electrochemical atomic force microscopy (EC-AFM) was used to evaluate the morphological changes during cyclic voltammetry (CV). The decrease of the overpotential for hydrogen oxidation peaks in samples containing PFPE-functionalized CNTs and hydrogen production (approximately -1.0 V vs. SHE) suggests that these samples could find application in fuel cell technology as well as in hydrogen storage devices. Carbon black-containing composites were prepared for comparative study with CNTs containing nanocomposites.
Collapse
Affiliation(s)
- Maurizio Sansotera
- Dipartimento di Chimica, Materiali e Ingegneria Chimica, Politecnico di Milano, Via Mancinelli 7, 20131 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-PoliMi), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Valeria Marona
- Dipartimento di Chimica, Materiali e Ingegneria Chimica, Politecnico di Milano, Via Mancinelli 7, 20131 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-PoliMi), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Piergiorgio Marziani
- Dipartimento di Chimica, Materiali e Ingegneria Chimica, Politecnico di Milano, Via Mancinelli 7, 20131 Milan, Italy
| | - Nadka Tzankova Dintcheva
- Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-Palermo), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Elisabetta Morici
- Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
- Advanced Technologies Network (ATeN) Center, Università di Palermo, Viale delle Scienze Ed. 18, 90128 Palermo, Italy
| | - Rossella Arrigo
- Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-Palermo), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Gianlorenzo Bussetti
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
| | - Walter Navarrini
- Dipartimento di Chimica, Materiali e Ingegneria Chimica, Politecnico di Milano, Via Mancinelli 7, 20131 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-PoliMi), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Luca Magagnin
- Dipartimento di Chimica, Materiali e Ingegneria Chimica, Politecnico di Milano, Via Mancinelli 7, 20131 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR-PoliMi), Via G. Giusti, 9, 50121 Firenze, Italy
| |
Collapse
|
14
|
Lu G, Shuai C, Liu Y, Yang X, Hu X. The Effect of a Flexible Electrode on the Electro Deformability of an Actuating Unit of a MDI-Polyurethane Composite Fiber Membrane Filled with BaTiO 3. Membranes (Basel) 2022; 12:878. [PMID: 36135897 PMCID: PMC9505373 DOI: 10.3390/membranes12090878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/27/2022] [Accepted: 09/04/2022] [Indexed: 06/16/2023]
Abstract
The electro deformability of an actuating unit of a polyurethane dielectric elastomer (PUDE) is affected by many factors. The agglomeration of dielectric fillers faced by the traditional dielectric modification methods will lead to the instability of the actuation performance of dielectric composites. In addition, the electro deformability (ability of deformation after voltage loading) is great affected by the selection of flexible electrodes and packaging technology. Based on the research findings, Diphenylmethane-4,4'-diisocyanat (MDI)-polyurethane dielectric composite fiber membrane filled with barium titanate (BaTiO3) is prepared using coaxial spinning, and this study then analyzes the effects of the types of flexible electrodes and coating methods on the electro deformability of the actuating unit of the dielectric composite fiber membrane. It is found that the electro deformability of the actuating unit coated with the single-walled carbon nanotube (SWNT) flexible electrode is better than that of the perfluoropolyether conductive grease (PCG) or the traditional conductive carbon grease (CCG) electrode in various degrees. When the loading voltage is 20 kV, the electro deformability of the actuating unit coated with SWNT flexible electrode exceeds the latter two electrodes by 13.8%; when the SWNT flexible electrode is encapsulated by physical surface implantation (PSI), the electric deformation of the actuating unit is higher than that of the solvent suspension dispersion (SSD).
Collapse
Affiliation(s)
- Gang Lu
- Institude of Noise and Vibration, Naval University of Engineering, Wuhan 430033, China
- Key Laboratory of Ship Vibration and Noise, Wuhan 430033, China
| | - Changgeng Shuai
- Institude of Noise and Vibration, Naval University of Engineering, Wuhan 430033, China
- Key Laboratory of Ship Vibration and Noise, Wuhan 430033, China
| | - Yinsong Liu
- Institude of Noise and Vibration, Naval University of Engineering, Wuhan 430033, China
- Key Laboratory of Ship Vibration and Noise, Wuhan 430033, China
| | - Xue Yang
- Institude of Noise and Vibration, Naval University of Engineering, Wuhan 430033, China
- Key Laboratory of Ship Vibration and Noise, Wuhan 430033, China
| | - Xiaoyang Hu
- Institude of Noise and Vibration, Naval University of Engineering, Wuhan 430033, China
- Key Laboratory of Ship Vibration and Noise, Wuhan 430033, China
| |
Collapse
|
15
|
Luo M, Zhang D, Yang K, Li Z, Zhu Z, Xia S, Yang HY, Chen W, Zhou X. A Flexible Vertical-Section Wood/MXene Electrode with Excellent Performance Fabricated by Building a Highly Accessible Bonding Interface. ACS Appl Mater Interfaces 2022; 14:40460-40468. [PMID: 36006960 DOI: 10.1021/acsami.2c12819] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cross-section wood (CW) is generally used as a host for free-standing electrodes, as the abundant opened pores can provide large space for loading guest materials with high electrical conductivity and electrochemical activity. However, there is still a challenge for CW to be used in flexible supercapacitors (SCs) because of its low mechanical strength. Herein, as an alternative to CW, vertical-section wood (VW) with excellent mechanical strength and good flexibility is developed and used as a free-standing and flexible electrode by using Ti3C2Tx (MXene) with ultrahigh conductivity and good electrochemical activity as a guest material. In particular, the highly accessible bonding interface for Ti3C2Tx is first built by delignification on VW to generate abundant pores for continuously absorbing Ti3C2Tx and to expose cellulose with abundant oxygen-containing groups for stable combination with Ti3C2Tx. Then, cyclic pressing is used to form negative pressure to pump the Ti3C2Tx suspension into VW, combining with a preheating process to trigger layer-by-layer self-assembly of Ti3C2Tx nanosheets onto a wood cell wall by evaporating water in the suspension. As a result, the free-standing electrode has a large Ti3C2Tx loading mass proportion of 33 wt %, a high conductivity of 3.14 S cm-1, and good flexibility with much higher mechanical strength of 15.1 MPa than 0.4 MPa of CW. The symmetric SC delivers a good specific capacitance of 805 mF cm-2 at 0.5 mA cm-2, a remarkably high rate capability of 84% to 10 mA cm-2, and an energy density of 13.85 μW h cm-2 at 87.5 μW cm-2. Additionally, this SC shows a long lifespan of 90.5% after 10,000th charge and discharge cycles even at a constant bending angle of 90°, suggesting promising potential in flexible devices.
Collapse
Affiliation(s)
- Min Luo
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Daotong Zhang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| | - Kai Yang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| | - Zhao Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| | - Ziqi Zhu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| | - Sunwen Xia
- Huazhong University of Science and Technology, State Key Laboratory of Coal Combustion, Wuhan 430074, China
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Weimin Chen
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| | - Xiaoyan Zhou
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing 210037, China
- Jiangsu Engineering Research Center of Fast-Growing Trees and Agri-Fiber Materials, Nanjing 210037, China
| |
Collapse
|
16
|
Do V, Lee SH, Jang E, Lee JH, Lee JW, Lee JT, Cho WI. Aqueous Quaternary Polymer Binder Enabling Long-Life Lithium-Sulfur Batteries by Multifunctional Physicochemical Properties. ACS Appl Mater Interfaces 2022; 14:19353-19364. [PMID: 35446031 DOI: 10.1021/acsami.2c00420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lithium-sulfur batteries (LSBs) have been considered promising candidates for application in high-density energy storage systems owing to their high gravimetric and volumetric energy densities. However, LSB technology faces many barriers from the intrinsic properties of active materials that need to be solved to realize high-performance LSBs. Herein, an aqueous binder, that is, PPCP, based on polyethyleneimine (PEI), polyvinylpyrrolidone (PVP), citric acid (CA), and polyethylene oxide (PEO), was developed. The synthesized PPCP binder has incredible mechanical properties, suitable viscosity, and essential functional groups for developing an effective and reliable LSB system. This study demonstrates that CA is crucial in cross-linking PEI-PVP polymer molecules, and PEO segments significantly enhance the flexibility of the PPCP binder; thus, the binder can mechanically stabilize the cathode structure over many operating cycles. The redistribution of active materials during the charge-discharge processes and reduction of the shuttle effect originate from the excellent chemical interactions of PPCP with lithium polysulfides, which is confirmed by the density functional theory calculation, enabling an ultra-long electrochemical cycle life of 1800 cycles with a low decay rate of 0.0278% cycle-1.
Collapse
Affiliation(s)
- Vandung Do
- Center for Energy Storage Research, Clean Energy Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Seung Hun Lee
- Center for Energy Storage Research, Clean Energy Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Eunji Jang
- Center for Energy Storage Research, Clean Energy Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Chemistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jung-Hoon Lee
- Computational Science Research Center, Advanced Material Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jae-Woo Lee
- R&D Division, Teratechnos Co., Ltd., Sejong 30011, Republic of Korea
| | - Jung Tae Lee
- Center for Energy Storage Research, Clean Energy Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Plant and Environmental New Resources, Kyung Hee University, Yongin, Gyeonggi-do 17104, Republic of Korea
| | - Won Il Cho
- Center for Energy Storage Research, Clean Energy Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
17
|
Kazari H, Pajootan E, Hubert P, Coulombe S. Dry Synthesis of Binder-Free Ruthenium Nitride-Coated Carbon Nanotubes as a Flexible Supercapacitor Electrode. ACS Appl Mater Interfaces 2022; 14:15112-15121. [PMID: 35347978 DOI: 10.1021/acsami.1c22276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ruthenium nitride was successfully deposited on a multiwalled carbon nanotube (MWCNT) forest grown on a stainless-steel mesh substrate by radiofrequency plasma-assisted pulsed laser deposition. This novel dry fabrication method for flexible supercapacitor electrodes eliminates toxic byproducts and the need for any binder component. Experimental results show a successful thin film coating of the individual MWCNTs with RuNx under various synthesis conditions. The electrochemical characterization demonstrates a significant improvement in capacitance of the synthesized RuNx-MWCNT electrode compared to the bare MWCNT forest, with a large potential window of 1.2 V. Capacitance values as high as 818.2 F g-1 (37.9 mF cm-2) have been achieved.
Collapse
Affiliation(s)
- Hanie Kazari
- Structures and Composite Materials Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec H3A 2K7, Canada
| | - Elmira Pajootan
- Catalytic and Plasma Process Engineering, Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Pascal Hubert
- Structures and Composite Materials Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec H3A 2K7, Canada
| | - Sylvain Coulombe
- Catalytic and Plasma Process Engineering, Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| |
Collapse
|
18
|
Barbosa JA, Freitas VMS, Vidotto LHB, Schleder GR, de Oliveira RAG, da Rocha JF, Kubota LT, Vieira LCS, Tolentino HCN, Neckel IT, Gobbi AL, Santhiago M, Lima RS. Biocompatible Wearable Electrodes on Leaves toward the On-Site Monitoring of Water Loss from Plants. ACS Appl Mater Interfaces 2022; 14:22989-23001. [PMID: 35311272 DOI: 10.1021/acsami.2c02943] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Impedimetric wearable sensors are a promising strategy for determining the loss of water content (LWC) from leaves because they can afford on-site and nondestructive quantification of cellular water from a single measurement. Because the water content is a key marker of leaf health, monitoring of the LWC can lend key insights into daily practice in precision agriculture, toxicity studies, and the development of agricultural inputs. Ongoing challenges with this monitoring are the on-leaf adhesion, compatibility, scalability, and reproducibility of the electrodes, especially when subjected to long-term measurements. This paper introduces a set of sensing material, technological, and data processing solutions that overwhelm such obstacles. Mass-production-suitable electrodes consisting of stand-alone Ni films obtained by well-established microfabrication methods or ecofriendly pyrolyzed paper enabled reproducible determination of the LWC from soy leaves with optimized sensibilities of 27.0 (Ni) and 17.5 kΩ %-1 (paper). The freestanding design of the Ni electrodes was further key to delivering high on-leaf adhesion and long-term compatibility. Their impedances remained unchanged under the action of wind at velocities of up to 2.00 m s-1, whereas X-ray nanoprobe fluorescence assays allowed us to confirm the Ni sensor compatibility by the monitoring of the soy leaf health in an electrode-exposed area. Both electrodes operated through direct transfer of the conductive materials on hairy soy leaves using an ordinary adhesive tape. We used a hand-held and low-power potentiostat with wireless connection to a smartphone to determine the LWC over 24 h. Impressively, a machine-learning model was able to convert the sensing responses into a simple mathematical equation that gauged the impairments on the water content at two temperatures (30 and 20 °C) with reduced root-mean-square errors (0.1% up to 0.3%). These data suggest broad applicability of the platform by enabling direct determination of the LWC from leaves even at variable temperatures. Overall, our findings may help to pave the way for translating "sense-act" technologies into practice toward the on-site and remote investigation of plant drought stress. These platforms can provide key information for aiding efficient data-driven management and guiding decision-making steps.
Collapse
Affiliation(s)
- Júlia A Barbosa
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
| | - Vitoria M S Freitas
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Faculty of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Lourenço H B Vidotto
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Gabriel R Schleder
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Ricardo A G de Oliveira
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Jaqueline F da Rocha
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Lauro T Kubota
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Luis C S Vieira
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Hélio C N Tolentino
- Brazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Itamar T Neckel
- Brazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Angelo L Gobbi
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Murilo Santhiago
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Renato S Lima
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| |
Collapse
|
19
|
Abaalkhail AA, Alshammari BA, Almutairi GN, Alenazey FS, Alotibi MF, Alenad AM, Alharbi AG, Almoneef TS, AlOtaibi BM. Enhancing the Performance of a Metal-Free Self-Supported Carbon Felt-Based Supercapacitor with Facile Two-Step Electrochemical Activation. Nanomaterials (Basel) 2022; 12:427. [PMID: 35159770 PMCID: PMC8838256 DOI: 10.3390/nano12030427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 02/04/2023]
Abstract
Carbon felt (CF) is an inexpensive carbon-based material that is highly conductive and features extraordinary inherent surface area. Using such a metal-free, low-cost material for energy storage applications can benefit their practical implementation; however, only limited success has been achieved using metal-free CF for supercapacitor electrodes. This work thoroughly studies a cost-effective and simple method for activating metal-free self-supported carbon felt. As-received CF samples were first chemically modified with an acidic mixture, then put through a time optimization two-step electrochemical treatment in inorganic salts. The initial oxidative exfoliation process enhances the fiber's surface area and ultimately introduced oxygen functional groups to the surface, whereas the subsequent reduction process substantially improved the conductivity. We achieved a 205-fold enhancement of capacitance over the as-received CF, with a maximum specific capacitance of 205 Fg-1, while using a charging current density of 23 mAg-1. Additionally, we obtained a remarkable capacitance retention of 78% upon increasing the charging current from 0.4 to 1 Ag-1. Finally, the cyclic stability reached 87% capacitance retention after 2500 cycles. These results demonstrate the potential utility of electrochemically activated CF electrodes in supercapacitor devices.
Collapse
Affiliation(s)
- AlBatool A. Abaalkhail
- The Center of Excellence for Advanced Materials and Manufacturing, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia;
| | - Basheer A. Alshammari
- Material Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia; (B.A.A.); (M.F.A.)
| | - Ghzzai N. Almutairi
- The National Center for Energy Storage Technologies, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia; (G.N.A.); (F.S.A.)
| | - Feraih S. Alenazey
- The National Center for Energy Storage Technologies, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia; (G.N.A.); (F.S.A.)
| | - Mohammed F. Alotibi
- Material Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia; (B.A.A.); (M.F.A.)
| | - Asma M. Alenad
- Chemistry Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia; (A.M.A.); (A.G.A.)
| | - Abdullah G. Alharbi
- Chemistry Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia; (A.M.A.); (A.G.A.)
| | - Thamer S. Almoneef
- Electrical Engineer Department, Prince Sattam Bin Abdulaziz University, Alkharj P.O. Box 173, Saudi Arabia;
| | - Bandar M. AlOtaibi
- The Center of Excellence for Advanced Materials and Manufacturing, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia;
- The National Center for Energy Storage Technologies, King Abdulaziz City for Science and Technology, Riyadh P.O. Box 6086, Saudi Arabia; (G.N.A.); (F.S.A.)
| |
Collapse
|
20
|
Kim YU, Kwon NY, Park SH, Kim CW, Chau HD, Hoang MH, Cho MJ, Choi DH. Patterned Sandwich-Type Silver Nanowire-Based Flexible Electrode by Photolithography. ACS Appl Mater Interfaces 2021; 13:61463-61472. [PMID: 34913342 DOI: 10.1021/acsami.1c19164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Silver nanowires (AgNWs) are one of the important flexible electrode material candidates that can replace brittle indium tin oxide (ITO). In this work, we demonstrated novel patterned sandwich-type AgNW-based transparent electrodes easily prepared using the photolithography method for application in flexible devices. A cross-linked underlayer was introduced to increase the adhesion properties between a poly(ethylene terephthalate) substrate and AgNWs, and as a result, a uniform AgNW layer was easily deposited. Finally, the AgNW layer could be easily patterned by introducing a photocross-linkable upper layer without lift-off, dry transfer, and removal methods. A mixture of poly(sodium-4-styrene sulfonate) (PSS-Na+) and 2,4-hexadiyne-1,6-diol (HDD), which is a component of the upper layer, exhibited good cross-linking properties as well as excellent adhesion to the AgNW layer. Through the above method, it was possible to easily fabricate a patterned electrode with smooth surface morphology. Moreover, AgNW-based patterned electrodes exhibit good optical and electrical properties (Rs = 29.8 Ω/□, T550 nm = 94.6%), making them suitable for optoelectronic devices. Flexible polymer solar cells (PSCs) using patterned AgNW electrodes showed a high power conversion efficiency of over 10%, which is comparable to that of PSCs using rigid ITO electrodes. In addition, the high mechanical stability of AgNW-based PSCs was confirmed by bending experiments.
Collapse
Affiliation(s)
- Young Un Kim
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Na Yeon Kwon
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Su Hong Park
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Chai Won Kim
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Hong Diem Chau
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Mai Ha Hoang
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 11072, Vietnam
| | - Min Ju Cho
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dong Hoon Choi
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
21
|
Dong F, Peng C, Xu H, Zheng Y, Yao H, Yang J, Zheng S. Lithiated Sulfur-Incorporated, Polymeric Cathode for Durable Lithium-Sulfur Batteries with Promoted Redox Kinetics. ACS Nano 2021; 15:20287-20299. [PMID: 34817165 DOI: 10.1021/acsnano.1c08449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Even though lithium-sulfur (Li-S) batteries have made much progress in terms of the delivered specific capacity and cycling stability by the encapsulation of sulfur within conductive carbon matrixes or polar materials, challenges such as low active sulfur utilization and unacceptable Coulombic efficiency are still hindering their commercial use. Herein, a lithium-rich conjugated sulfur-incorporated, polymeric material based on poly(Li2S6-r-1,3-diisopropenylbenzene) (DIB) is developed as a cathode material for high rate and stable Li-S batteries. Motivated by extra Li+ ions affording fast Li+ redox kinetics across the conjugated aromatic backbones, the Li-rich sulfur-based copolymer exhibits high delivery capacities (934 mAh g-1 at 120 cycles), impressive rate capabilities (727 mAh g-1 even under a current of 2 A g-1), and long electrochemical cycling performance over 500 cycles. Moreover, by use of the elastic nature and thermoplastic properties of the sulfur-incorporated, polymeric material, a prototype of a flexible Li-S pouch cell is constructed by using a poly(Li2S6-r-DIB) copolymer cathode and paired with the flexible carbon cloth/Si/Li anode, which exhibits stable electrochemical performance (658 mAh g-1 after 100 cycles) and operational capability even under folding at various angle (30°, 60°, 90°, 120°, 150°, 180°). This work extends the molecular-design approach to obtaining a high-performance organosulfur cathode material by introducing extra Li+ ions to promote redox kinetics, which provides valuable guidance for the development of high-performance Li-S batteries for practical applications.
Collapse
Affiliation(s)
- Fei Dong
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chengxin Peng
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Hongyi Xu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuxin Zheng
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Hongfei Yao
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Junhe Yang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shiyou Zheng
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| |
Collapse
|
22
|
Mathur A, Fan H, Maheshwari V. Soft Polymer-Organolead Halide Perovskite Films for Highly Stretchable and Durable Photodetectors with Pt-Au Nanochain-Based Electrodes. ACS Appl Mater Interfaces 2021; 13:58956-58965. [PMID: 34851102 DOI: 10.1021/acsami.1c18939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The rigid and brittle nature of methylammonium lead iodide (MAPbI3) polycrystalline films limits their application in stretchable devices due to rapid deterioration in performance on cycling. By incorporation of polymer chains in the MAPbI3 films, a strategy to alter the mechanical modulus and the viscoelastic nature of the films has been developed. Combining this with flexible nanochain electrodes, highly stretchable and stable perovskite devices have been fabricated. The resultant polymer-MAPbI3 photodetector exhibits ultralow dark currents (∼10-11 A) and high light switching ratios (∼103) and maintains 75% of performance after 30 days. The viscoelastic nature and lower modulus of the polymer improve the energy dissipation in the polymer-MAPbI3 devices; as a result, they maintain 52% of the device performance after 10000 stretching cycles at 50% strain. The difference in the mechanical behavior is clearly observed in the failure mode of the two films. While rapid catastrophic cracking is observed in MAPbI3 films, the intensity and size of such crack formation are highly limited in polymer-MAPbI3 films, which prevent their failure.
Collapse
Affiliation(s)
- Avi Mathur
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Hua Fan
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Vivek Maheshwari
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| |
Collapse
|
23
|
Abstract
Electrochromic devices have attracted considerable interest for smart windows. However, current development suffers from the requirement of the external power sources and rigid ITO substrate, which not only causes additional energy consumption but also limits their applications in flexible devices. Inspired by galvanic cell, we demonstrate a self-powered flexible electrochromic device by integrating Ag/W18O49 nanowire film with the Al sheet. The Ag nanowire film first acted as the electrode to replace the ITO substrate, then coupled with the Al sheet to induce an open-circuit voltage of ∼0.83 V, which is high enough to drive the coloration of W18O49 nanowires. Remarkably, the flexible self-powered electrochromic device only expends ∼6.8 mg/cm2 of the Al sheet after 450 electrochromic switching cycles and the size can be easily expanded with an area of 20 × 20 cm2, offering significant potential applications for the next generation of flexible electrochromic smart window.
Collapse
Affiliation(s)
- Jin-Long Wang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Si-Zhe Sheng
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Zhen He
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Rui Wang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Zhao Pan
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Hao-Yu Zhao
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Jian-Wei Liu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
24
|
Li Y, Zhang Y. Flexible Tellurium-Based Electrode for High-Performance Lithium-Tellurium Battery. Nanomaterials (Basel) 2021; 11:2903. [PMID: 34835667 DOI: 10.3390/nano11112903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/22/2021] [Accepted: 10/28/2021] [Indexed: 11/17/2022]
Abstract
Low-dimensional nanomaterials have attracted considerable attention for next-generation flexible energy devices owing to their excellent electrochemical properties and superior flexibility. Herein, uniform Tellurium nanotubes (Te NTs) were prepared through a facile hydrothermal method, and then a flexible and freestanding electrode was fabricated with Te NTs as active materials and a small amount of nanofibrillated celluloses (NFCs) as a flexible matrix through a vacuum filtration method without adding extra conductive carbon or a binder. The resulting Te-based electrode exhibits a high volumetric capacity of 1512 mAh cm−3 at 200 mA g−1, and delivers admirable cyclic stability (capacity retention of 104% over 300 cycles) and excellent rate performance (833 mAh cm−3 at 1000 mA g−1), which benefits from the unique structure and intrinsically superior conductivity of Te NTs. After bending 50 times, the Te-based electrode delivers a desirable volumetric capacity of 1117 mAh cm−3, and remains 93% of initial capacity after 100 cycles. The results imply that the Te-based electrode exhibits excellent electrochemical properties and superior flexibility simultaneously, which can serve as a potential candidate for the flexible lithium batteries.
Collapse
|
25
|
Kang BC, Park SJ, Ha TJ. Wearable Pressure/Touch Sensors Based on Hybrid Dielectric Composites of Zinc Oxide Nanowires/Poly(dimethylsiloxane) and Flexible Electrodes of Immobilized Carbon Nanotube Random Networks. ACS Appl Mater Interfaces 2021; 13:42014-42023. [PMID: 34450010 DOI: 10.1021/acsami.1c10961] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Capacitive-type physical sensors based on hybrid dielectric composites of zinc oxide nanowires/poly(dimethylsiloxane) (ZnO NWs@PDMS) and flexible electrodes of immobilized carbon nanotube (CNT) random networks, which are highly sensitive to pressure and touch stimuli, are demonstrated. Immobilized CNT random networks densely entangled in a Nafion matrix improve the electrical stability of wearable pressure sensors against mechanical stress with a bending radius of 5 mm. The effect of ZnO NW incorporation into PDMS on the sensing performance of pressure sensors is investigated, which results in a significantly enhanced sensitivity of 8.77 × 10-4 Pa-1 in low-pressure regions, compared to pristine PDMS (1.32 × 10-4 Pa-1). This improvement is attributed to the increase in the effective dielectric constant (εr) of the hybrid dielectric composites with their piezoelectric properties. In addition, wearable pressure/touch sensor arrays capable of detecting ultralow pressures (down to 20 Pa) and the real-time identification of touch and pressure stimuli via different sensing mechanisms are demonstrated. We believe that the multifunctionality introduced by the proposed sensors can extend the potential of physical sensor applications, while they are suitable for integration with wearable electronics based on hybrid nanocomposites and interfaces.
Collapse
Affiliation(s)
- Byeong-Cheol Kang
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Sang-Joon Park
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Tae-Jun Ha
- Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| |
Collapse
|
26
|
Giordano GF, Freitas VMS, Schleder GR, Santhiago M, Gobbi AL, Lima RS. Bifunctional Metal Meshes Acting as a Semipermeable Membrane and Electrode for Sensitive Electrochemical Determination of Volatile Compounds. ACS Appl Mater Interfaces 2021; 13:35914-35923. [PMID: 34309352 DOI: 10.1021/acsami.1c07874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The monitoring of toxic inorganic gases and volatile organic compounds has brought the development of field-deployable, sensitive, and scalable sensors into focus. Here, we attempted to meet these requirements by using concurrently microhole-structured meshes as (i) a membrane for the gas diffusion extraction of an analyte from a donor sample and (ii) an electrode for the sensitive electrochemical determination of this target with the receptor electrolyte at rest. We used two types of meshes with complementary benefits, i.e., Ni mesh fabricated by robust, scalable, and well-established methods for manufacturing specific designs and stainless steel wire mesh (SSWM), which is commercially available at a low cost. The diffusion of gas (from a donor) was conducted in headspace mode, thus minimizing issues related to mesh fouling. When compared with the conventional polytetrafluoroethylene (PTFE) membrane, both the meshes (40 μm hole diameter) led to a higher amount of vapor collected into the electrolyte for subsequent detection. This inedited fashion produced a kind of reverse diffusion of the analyte dissolved into the electrolyte (receptor), i.e., from the electrode to bulk, which further enabled highly sensitive analyses. Using Ni mesh coated with Ni(OH)2 nanoparticles, the limit of detection reached for ethanol was 24-fold lower than the data attained by a platform with a PTFE membrane and placement of the electrode into electrolyte bulk. This system was applied in the determination of ethanol in complex samples related to the production of ethanol biofuel. It is noteworthy that a simple equation fitted by machine learning was able to provide accurate assays (accuracies from 97 to 102%) by overcoming matrix effect-related interferences on detection performance. Furthermore, preliminary measurements demonstrated the successful coating of the meshes with gold films as an alternative raw electrode material and the monitoring of HCl utilizing Au-coated SSWMs. These strategies extend the applicability of the platform that may help to develop valuable volatile sensing solutions.
Collapse
Affiliation(s)
- Gabriela F Giordano
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
| | - Vitoria M S Freitas
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
- Faculty of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Gabriel R Schleder
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Murilo Santhiago
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Angelo L Gobbi
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
| | - Renato S Lima
- Brazilian Center for Research in Energy and Materials, Brazilian Nanotechnology National Laboratory, Campinas, São Paulo 13083-970, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| |
Collapse
|
27
|
Zeng T, Feng D, Liu Q, Zhou R. Confining Nano-GeP in Nitrogenous Hollow Carbon Fibers toward Flexible and High-Performance Lithium-Ion Batteries. ACS Appl Mater Interfaces 2021; 13:32978-32988. [PMID: 34232013 DOI: 10.1021/acsami.1c07387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although graphite has been used as anodes of lithium-ion batteries (LiBs) for 30 years, its unsatisfactory energy density makes it insufficient toward some new electronic products such as unmanned aerial vehicles. Herein, in situ synthesis of nano-GeP confined in nitrogen-doped carbon (GeP@NC) fibers was designed and performed via coaxial electrospinning followed by a phosphating process. This way ensured the paper-like GeP@NC-x electrode with high conductivity, high flexibility, and lightweight properties, which simultaneously solved the key scientific problems of difficulty in structural design and severe volume expansion of GeP. The inner diameter and wall thickness of the nanofibers can be effectively controlled by adjusting the size of electrospinning needles. It was suggested that the fibers not only effectively inhibited the growth of GeP, resulting in the synthesis of nano-GeP with size less than 50 nm, but also alleviated the volume expansion/agglomeration and improved the diffusion kinetics of Li+ in nano-GeP during cycling. The Li+ diffusion coefficient can be improved by reducing the inner diameter and wall thickness of the fibers. As a model system, the paper-like electrode (GeP@NC-2) with a fiber diameter of 280 nm and a wall thickness of 110 nm exhibited the best electrochemical performance. When applied as anodes in LiBs, it displayed a reversible capacity of 612 mAh g-1 at the 600th cycle at 1 A g-1, while GeP@NC-0 with a solid structure only delivered 239 mAh g-1. Furthermore, the GeP@NC-2 also exhibited good long-term cycling stability at 5 A g-1, and the capacity displayed a slight difference of 221.2 and 209.0 mAh g-1 in a voltage range of 0∼3 V and 0∼1.5 V, respectively. The well-defined synthetic approach combined with unique nanostructural design provided a meaningful reference for the rational design and development of next-generation flexible and high-performance LiB anodes.
Collapse
Affiliation(s)
- Tianbiao Zeng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Dong Feng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Qi Liu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Ruoyu Zhou
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| |
Collapse
|
28
|
Li Y, Ye S, Shi Y, Lin J, Song Y, Su Y, Wu X, Zhang J, Xie H, Su Z, Sun H, Seferos DS. Robust Electrodes for Flexible Energy Storage Devices Based on Bimetallic Encapsulated Core-Multishell Structures. Adv Sci (Weinh) 2021; 8:e2100911. [PMID: 34050717 PMCID: PMC8292853 DOI: 10.1002/advs.202100911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 06/08/2023]
Abstract
Developing flexible electrodes with high active materials loading and excellent mechanical stability is of importance to flexible electronics, yet remains challenging. Herein, robust flexible electrodes with an encapsulated core-multishell structure are developed via a spraying-hydrothermal process. The multilayer electrode possesses an architecture of substrate/reduced graphene oxide (rGO)/bimetallic complex/rGO/bimetallic complex/rGO from the inside to the outside, where the cellulosic fibers serve as the substrate, namely, the core; and the multiple layers of rGO and bimetallic complex, are used as active materials, namely, the shells. The inner two rGO interlayers function as the cement that chemically bind to two adjacent layers, while the two outer rGO layers encapsulate the inside structure effectively protecting the electrode from materials detachment or electrolyte corrosion. The electrodes with a unique core-multishell structure exhibit excellent cycle stability and exceptional temperature tolerance (-25 to 40 °C) for lithium and sodium storage. A combination of experimental and theoretical investigations are carried out to gain insights into the synergetic effects of cobalt-molybdenum-sulfide (CMS) materials (the bimetallic complex), which will provide guidance for future exploration of bimetallic sulfides. This strategy is further demonstrated in other substrates, showing general applicability and great potential in the development of flexible energy storage devices.
Collapse
Affiliation(s)
- Yan‐Fei Li
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Shuyang Ye
- Department of ChemistryUniversity of Toronto80 St. George StreetTorontoOntarioM5S 3H6Canada
| | - Yan‐Hong Shi
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Jian Lin
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Yi‐Han Song
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Yang Su
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Xing‐Long Wu
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Jing‐Ping Zhang
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Hai‐Ming Xie
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Zhong‐Min Su
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Hai‐Zhu Sun
- College of ChemistryNational & Local United Engineering Laboratory for Power BatteriesNortheast Normal University5268, Renmin StreetChangchun130024P. R. China
| | - Dwight S. Seferos
- Department of ChemistryUniversity of Toronto80 St. George StreetTorontoOntarioM5S 3H6Canada
| |
Collapse
|
29
|
Jin D, Zhou J, Yang T, Li S, Wang L, Cai Y, Wang L. Synthesis and Study on Ni-Co Phosphite/Activated Carbon Fabric Composited Materials with Controllable Nano-Structure for Hybrid Super-Capacitor Applications. Nanomaterials (Basel) 2021; 11:1649. [PMID: 34201582 PMCID: PMC8304602 DOI: 10.3390/nano11071649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 12/04/2022]
Abstract
The advantage of low resistivity and inactive binders makes binder-free electrode an excellent candidate for high-performance energy devices. A simple hydrothermal method was used to fabricate M11(HPO3)8(OH)6 (M: Ni and Co) (MHP) arrays combined with activated carbon fabric (ACF) without binder. The structures of MHP can be easily tuned from bouquets to nano-sheets by the concentration of NaH2PO2. The MHP/ACF composite materials with different structures showed the typical battery-type characteristic of anodic electrodes. In a three-electrode cell configuration, the MHP nano-sheet arrays/ACF composite has a higher capacity, of 1254 F/g, at a scan rate of 10 mA/cm2 and shows better cycling stability: 84.3% remaining specific capacity after 1000 cycles of charge-discharge measurement. The composite is highly flexible, with almost the same electrochemical performance under stretching mode. The MHP/ACF composite@ACF hybrid supercapacitor can deliver the highest energy density, of 34.1 Wh·kg-1, and a power density of 722 W·kg-1 at 1 A·g-1. As indicated by the results, MHP/ACF composite materials are excellent binder-free electrodes, candidates for flexible high-performance hybrid super-capacitor devices.
Collapse
Affiliation(s)
- Dalai Jin
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (D.J.); (L.W.)
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| | - Jiamin Zhou
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| | - Tianpeng Yang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| | - Saisai Li
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| | - Lina Wang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (D.J.); (L.W.)
| | - Yurong Cai
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| | - Longcheng Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha Town, Hangzhou 310018, China; (J.Z.); (T.Y.); (S.L.); (Y.C.)
| |
Collapse
|
30
|
Zhang L, Zhang X, Wang J, Seveno D, Fransaer J, Locquet JP, Seo JW. Carbon Nanotube Fibers Decorated with MnO 2 for Wire-Shaped Supercapacitor. Molecules 2021; 26:3479. [PMID: 34200479 DOI: 10.3390/molecules26113479] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/27/2021] [Accepted: 06/01/2021] [Indexed: 11/16/2022] Open
Abstract
Fibers made from CNTs (CNT fibers) have the potential to form high-strength, lightweight materials with superior electrical conductivity. CNT fibers have attracted great attention in relation to various applications, in particular as conductive electrodes in energy applications, such as capacitors, lithium-ion batteries, and solar cells. Among these, wire-shaped supercapacitors demonstrate various advantages for use in lightweight and wearable electronics. However, making electrodes with uniform structures and desirable electrochemical performances still remains a challenge. In this study, dry-spun CNT fibers from CNT carpets were homogeneously loaded with MnO2 nanoflakes through the treatment of KMnO4. These functionalized fibers were systematically characterized in terms of their morphology, surface and mechanical properties, and electrochemical performance. The resulting MnO2-CNT fiber electrode showed high specific capacitance (231.3 F/g) in a Na2SO4 electrolyte, 23 times higher than the specific capacitance of the bare CNT fibers. The symmetric wire-shaped supercapacitor composed of CNT-MnO2 fiber electrodes and a PVA/H3PO4 electrolyte possesses an energy density of 86 nWh/cm and good cycling performance. Combined with its light weight and high flexibility, this CNT-based wire-shaped supercapacitor shows promise for applications in flexible and wearable energy storage devices.
Collapse
|
31
|
Quan J, Xu E, Chang Y, Zhu Y, Li P, Wang L, Sun Z, Yu D, Jiang Y. Interface Engineering of a Sandwich Flexible Electrode PAn@CoHCF Rooted in Carbon Cloth for Enhanced Sodium-Ion Storage. ACS Appl Mater Interfaces 2021; 13:23794-23802. [PMID: 34000806 DOI: 10.1021/acsami.1c04931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With the growth of demand for flexible devices, the development of flexible electrodes used in energy storage devices has attracted much attention of researchers. In this work, a thin flexible cathode of Prussian blue analogue@polyaniline rooted in carbon cloth has been fabricated. The Prussian blue analogue (PBA) is an electrochemically active material grafted on flexible carbon cloth substrates, which had been precoated with polyaniline. Polyaniline as an intermediate layer can not only improve the overall electronic conductivity of the electrode but also enhance the adhesion and load of the PBAs. The electrochemical properties of the flexible cathode with a "sandwich" structure were determined in half-cells, with a superior capacity of 151 mA h·g-1 and a striking cyclability with 96% capacity retention over 100 cycles at 100 mA h·g-1. This work proposes a novel perspective for the structural construction and material synthesis of flexible positive electrodes and gives new options for the practical application of flexible batteries.
Collapse
Affiliation(s)
- Junjie Quan
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Enze Xu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Yajing Chang
- State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, People's Republic of China
| | - Yi Zhu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Pengcheng Li
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Li Wang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Zhenjie Sun
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Dabin Yu
- State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, People's Republic of China
| | - Yang Jiang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| |
Collapse
|
32
|
Jeong G, Seo J, Kim Y, Seo DH, Baik JM, Jeon EC, Lee G, Park H. Graphene Antiadhesion Layer for the Effective Peel-and-Pick Transfer of Metallic Electrodes toward Flexible Electronics. ACS Appl Mater Interfaces 2021; 13:22000-22008. [PMID: 33904704 DOI: 10.1021/acsami.1c03081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Owing to its exceptional physicochemical properties, graphene has demonstrated unprecedented potential in a wide array of scientific and industrial applications. By exploiting its chemically inert surface endowed with unique barrier functionalities, we herein demonstrate antiadhesive monolayer graphene films for realizing a peel-and-pick transfer process of target materials from the donor substrate. When the graphene antiadhesion layer (AAL) is inserted at the interface between the metal and the arbitrary donor substrate, the interfacial interactions can be effectively weakened by the weak interplanar van der Waals forces of graphene, enabling the effective release of the metallic electrode from the donor substrate. The flexible embedded metallic electrode with graphene AAL exhibited excellent electrical conductivity, mechanical durability, and chemical resistance, as well as excellent performance in flexible heater applications. This study afforded an effective strategy for fabricating high-performance and ultraflexible embedded metallic electrodes for applications in the field of highly functional flexible electronics.
Collapse
Affiliation(s)
- Gyujeong Jeong
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jihyung Seo
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yongchul Kim
- Department of Chemistry, Center for Superfunctional Materials, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Dong-Hyun Seo
- School of Materials Science and Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Jeong Min Baik
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Eun-Chae Jeon
- School of Materials Science and Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Geunsik Lee
- Department of Chemistry, Center for Superfunctional Materials, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Hyesung Park
- Department of Materials Science and Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| |
Collapse
|
33
|
Shin H, Yang E, Kim YH, Kwak MG, Kim Y. Fabrication of Flexible Electrode with Sub-Tenth Micron Thickness Using Heat-Induced Peelable Pressure-Sensitive Adhesive Containing Amide Groups. Nanomaterials (Basel) 2021; 11:nano11051250. [PMID: 34068588 PMCID: PMC8150947 DOI: 10.3390/nano11051250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
In response to the increasing demand for flexible devices, there is increasing effort to manufacture flexible electrodes. However, the difficulty of handling a thin film is an obstacle to the production of flexible electrodes. In this study, a heat-induced peelable pressure-sensitive adhesive (h-PSA) was fabricated and used to manufacture a flexible electrode with sub-tenth micron thickness. Unlike the control PSA, the incorporation of amide groups made the h-PSA fail through adhesive failure at temperatures ranging from 20 to 80 °C. Compared to the peeling adhesion (1719 gf/in) of h-PSA measured at 20 °C, the value (171 gf/in) measured at 80 °C was decreased by one order of magnitude. Next, the 8 μm thick polyethylene terephthalate (PET) film was attached on a thick substrate (50 μm) via h-PSA, and Mo/Al/Mol patterns were fabricated on the PET film through sputtering, photolithography, and wet-etching processes. The thick substrate alleviated the difficulty of handling the thin PET film during the electrode fabrication process. Thanks to the low peel force and clean separation of the h-PSA at 80 °C, the flexible electrode of metal patterns on the PET (8 μm) film was isolated from the substrate with little change (<1%) in electrical conductivity. Finally, the mechanical durability of the flexible electrode was evaluated by a U-shape folding test, and no cracking or delamination was observed after 10,000 test cycles.
Collapse
Affiliation(s)
- Hyebeom Shin
- Display Research Center, Korea Electronics Technology Institute, 25 Saenariro, Bundang-gu, Seongnam 13509, Korea; (H.S.); (E.Y.); (M.-G.K.)
| | - Eunseong Yang
- Display Research Center, Korea Electronics Technology Institute, 25 Saenariro, Bundang-gu, Seongnam 13509, Korea; (H.S.); (E.Y.); (M.-G.K.)
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea;
| | - Yong-Hoon Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea;
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Min-Gi Kwak
- Display Research Center, Korea Electronics Technology Institute, 25 Saenariro, Bundang-gu, Seongnam 13509, Korea; (H.S.); (E.Y.); (M.-G.K.)
| | - Youngmin Kim
- Display Research Center, Korea Electronics Technology Institute, 25 Saenariro, Bundang-gu, Seongnam 13509, Korea; (H.S.); (E.Y.); (M.-G.K.)
- Correspondence:
| |
Collapse
|
34
|
Foremny K, Konerding WS, Behrens A, Baumhoff P, Froriep UP, Kral A, Doll T. Carbon-Nanotube-Coated Surface Electrodes for Cortical Recordings In Vivo. Nanomaterials (Basel) 2021; 11:nano11041029. [PMID: 33920671 PMCID: PMC8073035 DOI: 10.3390/nano11041029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022]
Abstract
Current developments of electrodes for neural recordings address the need of biomedical research and applications for high spatial acuity in electrophysiological recordings. One approach is the usage of novel materials to overcome electrochemical constraints of state-of-the-art metal contacts. Promising materials are carbon nanotubes (CNTs), as they are well suited for neural interfacing. The CNTs increase the effective contact surface area to decrease high impedances while keeping minimal contact diameters. However, to prevent toxic dissolving of CNTs, an appropriate surface coating is required. In this study, we tested flexible surface electrocorticographic (ECoG) electrodes, coated with a CNT-silicone rubber composite. First, we describe the outcome of surface etching, which exposes the contact nanostructure while anchoring the CNTs. Subsequently, the ECoG electrodes were used for acute in vivo recordings of auditory evoked potentials from the guinea pig auditory cortex. Both the impedances and the signal-to-noise ratios of coated contacts were similar to uncoated gold contacts. This novel approach for a safe application of CNTs, embedded in a surface etched silicone rubber, showed promising results but did not lead to improvements during acute recordings.
Collapse
Affiliation(s)
- Katharina Foremny
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
- Correspondence:
| | - Wiebke S. Konerding
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
| | - Ailke Behrens
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
| | - Peter Baumhoff
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
| | - Ulrich P. Froriep
- Division of Translational Biomedical Engineering, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, 30625 Hannover, Germany;
| | - Andrej Kral
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
| | - Theodor Doll
- Institute of AudioNeuroTechnology and Department of Experimental Otology, ENT Clinic, Hannover Medical School, 30625 Hannover, Germany; (W.S.K.); (A.B.); (P.B.); (A.K.); (T.D.)
- Division of Translational Biomedical Engineering, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, 30625 Hannover, Germany;
| |
Collapse
|
35
|
Abstract
Electric-acoustic stimulation (EAS) is a special treatment modality for those patients who are profoundly deaf in the high-frequency (HF) region and retain usable hearing in the low-frequency (LF) region. Combining the electric stimulation with cochlear implant (CI) in the HF and acoustic amplification of residual hearing using a conventional hearing aid (HA) in the LF region defines EAS. The EAS concept was first proposed by C. von Ilberg from Frankfurt, Germany in the year 1997. In association with MED-EL, all the necessary safety studies were performed in non-human subjects before the first patient received it in 1997. In association with MED-EL, all the necessary safety studies were performed in non-human subjects before the first patient received it in 1999. For the patient to successfully use the EAS concept, the residual hearing needs to be preserved to a high extent and for several years. This requires a highly flexible electrode array in safeguarding the intra-cochlear structures during and after the CI electrode array insertion. Combining the HA unit with the audio processor unit of the CI was necessary for the convenient wearing of the unified audio processor. Fitting of the unified audio processor is another important factor that contributes to the overall success of the EAS treatment. The key translational research efforts at MED-EL were on the development of flexible electrodes, a unified audio processor, innovations in the fitting process, intra-operative monitoring of cochlear health during electrode insertion, pre-operative soft-ware tool to evaluate the cochlear size and electrode selection and some new innovations tried within EAS topic. This article covers the milestones of translational research from the first concept to the widespread clinical use of EAS.
Collapse
Affiliation(s)
| | - Ingeborg Hochmair
- MED-EL Elektromedizinische Geraete Gesellschaft m.b.H., Innsbruck, Austria
| |
Collapse
|
36
|
Han JH, Shin KH, Lee YJ. Scalable Binder-Free Freestanding Electrodes Based on a Cellulose Acetate-Assisted Carbon Nanotube Fibrous Network for Practical Flexible Li-Ion Batteries. ACS Appl Mater Interfaces 2021; 13:6375-6384. [PMID: 33508939 DOI: 10.1021/acsami.0c22664] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein, a freestanding cellulose acetate-carbon nanotube (CA-CNT) film electrode is presented to achieve highly flexible, high-energy lithium-ion batteries (LIBs). CA serves as a dispersing agent of CNTs and a binder-free network former. A straightforward washing can remove CA in the electrode almost completely, while the fibrous CNT network within the electrode is sustained. Furthermore, the facile fabrication enables the large-scale production of the film electrode because the CA-CNT film is processed by a conventional casting method and not by the area-limited vacuum filtration. The superior electrochemical performance and high flexibility of the full cell assembled with CA-CNT-based electrodes are maintained even at a high active material loading, which has been proven difficult to accomplish in the conventional configuration LIBs. In addition, by simply stacking six sheets of the freestanding film electrode, a capacity as high as 5.4 mA h cm-2 is achieved. The assembled pouch battery operates stably under extreme deformation. We demonstrate that the rational design of the electrode could extend the flexibility to a higher energy than that achieved with the conventional configuration. We believe that the low production cost, high flexibility, and superior electrochemical performance of the proposed freestanding film electrode can expedite the implementation of wearable gears in daily life.
Collapse
Affiliation(s)
- Ji Hyun Han
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Kyu Hang Shin
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Yun Jung Lee
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| |
Collapse
|
37
|
Nam D, Cha JM, Park K. Next-Generation Wearable Biosensors Developed with Flexible Bio-Chips. Micromachines (Basel) 2021; 12:64. [PMID: 33430524 PMCID: PMC7827596 DOI: 10.3390/mi12010064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 12/31/2022]
Abstract
The development of biosensors that measure various biosignals from our body is an indispensable research field for health monitoring. In recent years, as the demand to monitor the health conditions of individuals in real time have increased, wearable-type biosensors have received more attention as an alternative to laboratory equipment. These biosensors have been embedded into smart watches, clothes, and accessories to collect various biosignals in real time. Although wearable biosensors attached to the human body can conveniently collect biosignals, there are reliability issues due to noise generated in data collection. In order for wearable biosensors to be more widely used, the reliability of collected data should be improved. Research on flexible bio-chips in the field of material science and engineering might help develop new types of biosensors that resolve the issues of conventional wearable biosensors. Flexible bio-chips with higher precision can be used to collect various human data in academic research and in our daily lives. In this review, we present various types of conventional biosensors that have been used and discuss associated issues such as noise and inaccuracy. We then introduce recent studies on flexible bio-chips as a solution to these issues.
Collapse
Affiliation(s)
| | - Jae Min Cha
- Department of Mechatronics Engineering, Incheon National University, Incheon 22012, Korea;
| | - Kiwon Park
- Department of Mechatronics Engineering, Incheon National University, Incheon 22012, Korea;
| |
Collapse
|
38
|
Zhang X, Gao M, Wang W, Liu B, Li X. Encapsulating MoO 2 Nanocrystals into Flexible Carbon Nanofibers via Electrospinning for High-Performance Lithium Storage. Polymers (Basel) 2020; 13:polym13010022. [PMID: 33374695 PMCID: PMC7793480 DOI: 10.3390/polym13010022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022] Open
Abstract
Design and synthesis of flexible and self-supporting electrode materials in high-performance lithium storage is significant for applications in the field of smart wearable devices. Herein, flexible carbon nanofiber membranes with uniformly distributed molybdenum dioxide (MoO2) nanocrystals are fabricated by a needlefree electrospinning method combined with the subsequent carbonization process, which exhibits outstanding structural stability under abrasion and deformation. The as-fabricated lithium-ion batteries (LIBs) exhibit a high discharge of 450 mAh g−1 after 500 cycles at 2000 mA g−1 by using the MoO2/C nanofiber membrane as the self-supporting anode. Further, the nanofibers structure remains intact after 500 cycles, which reflects the excellent stability of the materials. This study provides a simple and effective method for the preparation of MoO2/C nanofiber materials, which can not only maintain its excellent electrochemical and physical properties, but also easily realize large-scale production. It is undoubtedly beneficial for the development of flexible LIBs and smart wearable devices.
Collapse
Affiliation(s)
- Xinyu Zhang
- College of Textiles & Clothing, Qingdao University, Qingdao 266071, China; (X.Z.); (M.G.)
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Mingzhen Gao
- College of Textiles & Clothing, Qingdao University, Qingdao 266071, China; (X.Z.); (M.G.)
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Wei Wang
- College of Science and Technology, Ningbo University, Cixi 315300, China;
| | - Bing Liu
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
- Correspondence: (B.L.); (X.L.)
| | - Xianbo Li
- College of Textiles & Clothing, Qingdao University, Qingdao 266071, China; (X.Z.); (M.G.)
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
- Correspondence: (B.L.); (X.L.)
| |
Collapse
|
39
|
Kim NW, Lee DG, Kim KS, Hur S. Effects of Curing Temperature on Bending Durability of Inkjet-Printed Flexible Silver Electrode. Nanomaterials (Basel) 2020; 10:E2463. [PMID: 33317076 PMCID: PMC7763182 DOI: 10.3390/nano10122463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/26/2020] [Accepted: 12/08/2020] [Indexed: 12/23/2022]
Abstract
Flexible electrodes should have a good mechanical durability and electrical properties under even extreme bending and deformation conditions. We fabricated such an electrode using an inkjet printing system. In addition, annealing was perfo3rmed under curing temperatures of 150, 170, and 190 °C to improve the electrical resistance performance of the electrode. Scanning electron microscopy, X-ray diffraction, nanoindentation, and surface profile measurements were performed to measure and analyze the electrode characteristics and the change in the shape of the coffee ring. The bending deformation behavior of the electrode was predicted by simulations. To confirm the bending durability of the flexible electrode according to different curing temperatures, the bending deformation and electrical resistance were simultaneously tested. It was found that the electrode cured at a temperature of 170 °C could endure 20,185 bending cycles and had the best durability, which was consistent with the predicted simulation results. Moreover, the average specific resistance before the electrode was disconnected was 13.45 μΩ cm, which is similar to the conventional electrode value. These results are expected to increase the durability and life of flexible electrodes, which can be used in flexible electronic devices, sensors, and wearable devices that are subjected to significant bending deformation.
Collapse
Affiliation(s)
- Nam Woon Kim
- Korea Institute of Machinery and Materials, Daejeon 34103, Korea; (N.W.K.); (D.-G.L.); (K.-S.K.)
| | - Duck-Gyu Lee
- Korea Institute of Machinery and Materials, Daejeon 34103, Korea; (N.W.K.); (D.-G.L.); (K.-S.K.)
| | - Kyung-Shik Kim
- Korea Institute of Machinery and Materials, Daejeon 34103, Korea; (N.W.K.); (D.-G.L.); (K.-S.K.)
| | - Shin Hur
- Korea Institute of Machinery and Materials, Daejeon 34103, Korea; (N.W.K.); (D.-G.L.); (K.-S.K.)
- Department of Nano-Mechatronics, University of Science and Technology, Daejeon 34113, Korea
| |
Collapse
|
40
|
Guo H, Liu G, Wang M, Zhang Y, Li W, Chen K, Liu Y, Yue M, Wang Y. In-Situ Fabrication of Bone-Like CoSe 2 Nano-Thorn Loaded on Porous Carbon Cloth as a Flexible Electrode for Na-Ion Storage. Chem Asian J 2020; 15:1493-1499. [PMID: 32176427 DOI: 10.1002/asia.202000189] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/12/2020] [Indexed: 11/06/2022]
Abstract
Sodium-ion batteries (SIBs) based on flexible electrode materials are being investigated recently for improving sluggish kinetics and developing energy density. Transition metal selenides present excellent conductivity and high capacity; nevertheless, their low conductivity and serious volume expansion raise challenging issues of inferior lifespan and capacity fading. Herein, an in-situ construction method through carbonization and selenide synergistic effect is skillfully designed to synthesize a flexible electrode of bone-like CoSe2 nano-thorn coated on porous carbon cloth. The designed flexible CoSe2 electrode with stable structural feature displays enhanced Na-ion storage capabilities with good rate performance and outstanding cycling stability. As expected, the designed SIBs with flexible BL-CoSe2 /PCC electrode display excellent reversible capacity with 360.7 mAh g-1 after 180 cycles at a current density of 0.1 A g-1 .
Collapse
Affiliation(s)
- Huinan Guo
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Guishu Liu
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Mengying Wang
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Yan Zhang
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Weiqin Li
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Kai Chen
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Yafei Liu
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Mengyuan Yue
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Yijing Wang
- Department Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| |
Collapse
|
41
|
Lee GJ, Heo SJ, Lee S, Yang JH, Jun BO, Kim HS, Jang JE. Stress Release Effect of Micro-hole Arrays for Flexible Electrodes and Thin Film Transistors. ACS Appl Mater Interfaces 2020; 12:19226-19234. [PMID: 32237721 DOI: 10.1021/acsami.0c02362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The effects of micro-hole arrays in the thin metal films were studied as a method to release bending stress in flexible electrodes and flexible thin film transistors (TFTs). Interest in flexible electronics is increasing, and many approaches have been suggested to solve the issue of the electrical failure of electrodes or electrical components such as TFTs after repeated bending. Here, we demonstrate a micro-hole array structure as a common solution to release bending stress. Although micro-size cracks were generated and propagated from the hole edges, the cracks stopped within a certain range when enough stress was released. Moreover, since the crack sites were predictable and controllable, a fatal electrical breakdown in a conductive layer such as a metal electrode or the semiconducting junction of a TFT can be prevented by specifically arranging the hole arrays. Thin film layers fabricated without holes suffered an electrical breakdown due to random crack propagation during bending tests. Aluminum thin film electrodes prepared with arrays of 3 μm diameter holes and 25% hole area showed excellent durability after 300,000 bending cycles. The change in resistance was below 3%. The electrical characteristics of an a-IGZO TFT with the micro-hole structure were almost equivalent to a standard a-IGZO TFT. After 10,000 bending cycles, ION and the ratio of ION/IOFF remained >107 A and ∼107, respectively. Since the effective hole diameter is micrometer in size, fabrication does not require additional process steps or expensive process equipment. Therefore, the approach can be an important way to enhance the reliability of various electrical devices in flexible and wearable applications.
Collapse
Affiliation(s)
- Gwang Jun Lee
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Su Jin Heo
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Seungchul Lee
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
- Samsung Electronics, Hwaseong 18448, Republic of Korea
| | - Jae Hoon Yang
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Byoung Ok Jun
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Hyun Sik Kim
- Department of Materials Science and Engineering, Hongik University, Seoul 04066, Republic of Korea
| | - Jae Eun Jang
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| |
Collapse
|
42
|
Xie T, Xu J, Wang J, Ma C, Su L, Dong F, Gong L. Freestanding Needle Flower Structure CuCo 2S 4 on Carbon Cloth for Flexible High Energy Supercapacitors With the Gel Electrolyte. Front Chem 2020; 8:62. [PMID: 32175304 PMCID: PMC7056745 DOI: 10.3389/fchem.2020.00062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 01/20/2020] [Indexed: 11/30/2022] Open
Abstract
A facile hydrothermal approach was adopted to the direct synthesis of bimetallic sulfide (CuCo2S4) on carbon cloth (CC) without binders for the supercapacitor's electrodes. A possible formation mechanism was proposed. The prepared bimetallic electrode exhibited a high specific capacitance (Csp) of 1,312 F·g−1 at 1 A·g−1, and an excellent capacitance retention of 94% at 5 A·g−1 over 5,000 cycles. In addition, the asymmetric supercapacitor (CuCo2S4/CC//AC/CC) exhibited energy density (42.9 wh·kg−1 at 0.8 kW·kg−1) and outstanding cycle performance (80% initial capacity retention after 5,000 cycles at 10 A·g−1). It should be noted that the electrochemical performance of a supercapacitor device is quite stable at different bending angles. Two charged devices in series can light 28 red-colored LEDs (2.0 V) for 5 min. All of this serves to indicate the potentially high application value of CuCo2S4.
Collapse
Affiliation(s)
- Tian Xie
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jinxiao Xu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jie Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Chuanli Ma
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Linghao Su
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Fengying Dong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Liangyu Gong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| |
Collapse
|
43
|
Thibodeau J, Ignaszak A. Flexible Electrode Based on MWCNT Embedded in a Cross-Linked Acrylamide/Alginate Blend: Conductivity vs. Stretching. Polymers (Basel) 2020; 12:E181. [PMID: 31936644 DOI: 10.3390/polym12010181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 11/22/2022] Open
Abstract
A polyacrylamide-alginate hydrogel electrolyte, blended with Multi-Walled Carbon Nanotubes (MWCNT) as an electronically conductive fraction, allows for the creation of a flexible, durable, and resilient electrode. The MWCNT content is correlated with mechanical characteristics such as stretch modulus, tensile resistance, and electrical conductivity. The mechanical analysis demonstrates tensile strength that is comparable to similar hydrogels reported in the literature, with increasing strength for MWCNT-embedded hydrogels. The impedance spectroscopy reveals that the total resistance of electrodes decreases with increasing MWCNT content upon elongation and that bending and twisting do not obstruct their conductivity. The MWCNT-inserted hydrogels show mixed ionic and electronic conductivities, both within a range of 1–4 × 10−2 S cm−1 in a steady state. In addition, the thermal stability of these materials increases with incrementing MWCNT content. This observation agrees with long-term charge-discharge cycling that shows enhanced electrochemical durability of the MWCNT-hydrogel hybrid when compared to pure hydrogel electrolyte. The hydrogel-carbon films demonstrate an increased interfacial double-layer current at a high MWCNT content (giving an area-specific capacitance of ~30 mF cm−2 at 2.79 wt.% of MWCNT), which makes them promising candidates as printable and flexible electrodes for lightweight energy storage applications. The maximum content of MWCNT within the polymer electrolyte was estimated at 2.79 wt.%, giving a very elastic polymer electrode with good electrical characteristics.
Collapse
|
44
|
Wang S, Yan J, Zhu C, Yao J, Liu Q, Yang X. A Low Contact Impedance Medical Flexible Electrode Based on a Pyramid Array Micro-Structure. Micromachines (Basel) 2020; 11:E57. [PMID: 31906344 DOI: 10.3390/mi11010057] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/25/2019] [Accepted: 12/27/2019] [Indexed: 11/24/2022]
Abstract
Flexible electrodes are extensively used to detect signals in electrocardiography, electroencephalography, electro-ophthalmography, and electromyography, among others. These electrodes can also be used in wearable and implantable medical systems. The collected signals directly affect doctors’ diagnoses of patient etiology and are closely associated with patients’ life safety. Electrodes with low contact impedance can acquire good quality signals. Herein, we established a method of arraying pyramidal microstructures on polydimethylsiloxane (PDMS) substrates to increase the contact area of electrodes, and a parylene transitional layer is coated between PDMS substrates and metal membranes to enhance the bonding force, finally reducing the impedance of flexible electrodes. Experimental results demonstrated that the proposed methods were effective. The contact area of the fabricated electrode increased by 18.15% per unit area, and the contact impedance at 20 Hz to 1 kHz scanning frequency ranged from 23 to 8 kΩ, which was always smaller than that of a commercial electrode. Overall, these results indicated the excellent performance of the fabricated electrode given its low contact impedance and good biocompatibility. This study can also serve as a reference for further electrode research and application in wearable and implantable medical systems.
Collapse
|
45
|
Han J, Wang S, Zhu S, Huang C, Yue Y, Mei C, Xu X, Xia C. Electrospun Core-Shell Nanofibrous Membranes with Nanocellulose-Stabilized Carbon Nanotubes for Use as High-Performance Flexible Supercapacitor Electrodes with Enhanced Water Resistance, Thermal Stability, and Mechanical Toughness. ACS Appl Mater Interfaces 2019; 11:44624-44635. [PMID: 31697464 DOI: 10.1021/acsami.9b16458] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A high-performance flexible supercapacitor electrode with a core-shell structure is successfully developed from cellulose nanocrystal (CNC)-stabilized carbon nanotubes (CNTs). By incorporating poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA), a cross-linked nanofibrous membrane (CNT-CNC/PVA-PAA) is prepared as the core material via directional electrospinning, followed by a thermal treatment. The flexible supercapacitor electrodes are eventually fabricated via the in situ polymerization of polyaniline (PANI), which was used as the coating shell material, on the aligned electrospun nanofibers. By taking advantage of the thermally induced esterification cross-linking that occurs among PVA, PAA, and the CNT-CNC nanohybrids, the membranes present with enhanced water resistance, mechanical strength, and thermal stability. After the surface coating of the PANI shell, the optimized PANI@CNT-CNC/PVA-PAA nanofibrous membranes exhibit a large porosity, an enhanced specific surface area, a superior tensile strength of ∼54.8 MPa, and a favorable electroconductivity of ∼0.44 S m-1. As expected, the nanofibrous electrodes with a specific capacitance of 164.6 F g-1 can maintain 91% of the original capacitance after 2000 cycles. The symmetrical solid-state supercapacitor assembled by the nanofibrous electrodes shows an excellent capacitance of 155.5 F g-1 and a remarkable capacitance retention of 92, 90, and 89% after 2000 cycles under flat, bending, and twisting deformations, respectively.
Collapse
|
46
|
Lee SY, Nam YS, Yu JC, Lee S, Jung ED, Kim SH, Lee S, Kim JY, Song MH. Highly Efficient Flexible Perovskite Light-Emitting Diodes Using the Modified PEDOT:PSS Hole Transport Layer and Polymer-Silver Nanowire Composite Electrode. ACS Appl Mater Interfaces 2019; 11:39274-39282. [PMID: 31573174 DOI: 10.1021/acsami.9b10771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal halide perovskites have been actively studied as promising materials in optoelectronic devices because of their superior optical and electrical properties and have also shown considerable potential for flexible devices because of their good mechanical properties. However, the large hole injection barrier and exciton quenching between the perovskite emitter and poly(3,4-ethylenedioxythiophene):poly-styrene sulfonate (PEDOT:PSS) can lead to the reduction in device efficiency. Here, a nonconductive fluorosurfactant, Zonyl FS-300 (Zonyl), is introduced into the PEDOT:PSS hole transport layer, which reduces the hole injection barrier and exciton quenching at the PEDOT:PSS/perovskite interface. Moreover, a flexible perovskite light-emitting diode with a polymer-silver nanowire composite electrode is demonstrated, showing a maximum current efficiency (CEmax) of 17.90 cd A-1, and this is maintained even after 1000 cycles of bending with a 2.5 mm bending radius.
Collapse
Affiliation(s)
- Sang Yun Lee
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Yun Seok Nam
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Jae Choul Yu
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Seungjin Lee
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Eui Dae Jung
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Si-Hoon Kim
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Sukbin Lee
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Ju-Young Kim
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| | - Myoung Hoon Song
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Eonyang-eup, Ulsan , 44919 , Republic of Korea
| |
Collapse
|
47
|
Kang HJ, Huh YS, Im WB, Jun YS. Molecular Cooperative Assembly-Mediated Synthesis of Ultra-High-Performance Hard Carbon Anodes for Dual-Carbon Sodium Hybrid Capacitors. ACS Nano 2019; 13:11935-11946. [PMID: 31577414 DOI: 10.1021/acsnano.9b06027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although sodium hybrid capacitors (NHCs) have emerged as one of the most promising next-generation energy storage systems, further advancement is delayed primarily by the absence of high-performance battery-type anodes. Herein, we report a nature-inspired synthesis route to prepare hard carbon anodes with high capacity, rate capability, and cycle stability for dual-carbon NHCs. Shape- and size-controllable crystal aggregates of inexpensive triazine molecules are utilized as reactive templates that perform triple duties of structure-directing agent, porogen, and nitrogen source. This enables the fine control of microstructure/morphology/composition and thereby electrochemical reactions toward Na-ion. The resulting hard carbon optimized in terms of lateral size, interlayer spacing, and surface affinity of graphene-like layers achieves a specific capacity of ∼380 mAh/g after 100 cycles at a current density of 250 mA/g mainly via intercalation, the current record of hard carbons. Combined with a commercial microporous carbon fiber cathode, the full cell is able to deliver a volumetric energy density of 2.89 mWh/cm3 and a volumetric power density of 160 mW/cm3, outperforming NHCs based on inorganic Na-ion anode materials. More importantly, such performance could not only be retained for 10000 cycles (4.5 F/cm3 at 10 mA/cm3) with 0.000 028 6% loss per cycle at >97% Coulombic efficiency but also successfully transferred to flexible pouch cells without significant performance loss after 300 bending cycles or during wrapping at a 10R condition. Simple preparation of hard carbon anodes using organic crystal reactive templates, therefore, demonstrates great potential for the manufacture of high-performance flexible NHCs using only carbon electrode materials.
Collapse
Affiliation(s)
- Hui-Ju Kang
- Department of Advanced Chemicals & Engineering , Chonnam National University , Gwangju 61186 , Republic of Korea
| | - Yun Suk Huh
- Department of Biological Engineering , Inha University , Incheon 22212 , Republic of Korea
| | - Won Bin Im
- Division of Materials Science and Engineering , Hanyang University , 222 Wangsimni-ro , Seongdong-gu, Seoul 04763 , Republic of Korea
| | - Young-Si Jun
- Department of Advanced Chemicals & Engineering , Chonnam National University , Gwangju 61186 , Republic of Korea
| |
Collapse
|
48
|
Shen J, Xu X, Liu J, Liu Z, Li F, Hu R, Liu J, Hou X, Feng Y, Yu Y, Zhu M. Mechanistic Understanding of Metal Phosphide Host for Sulfur Cathode in High-Energy-Density Lithium-Sulfur Batteries. ACS Nano 2019; 13:8986-8996. [PMID: 31356051 DOI: 10.1021/acsnano.9b02903] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
For solving the drawbacks of low conductivity and the shuttle effect in a sulfur cathode, various nonpolar carbon and polar metal compounds with strong chemical absorption ability are applied as sulfur host materials for lithium-sulfur (Li-S) batteries. Nevertheless, previous research simply attributed the performance improvement of sulfur cathodes to the chemical adsorption ability of polar metal compounds toward lithium polysulfides (LPS), while a deep understanding of the enhanced electrochemical performance in these various sulfur hosts, especially at the molecular levels, is still unclear. Herein, for a mechanistic understanding of superior metal phosphide host in Li-S battery chemistry, an integrated phosphide-based host of CF/FeP@C (carbon cloth with grown FeP@C nanotube arrays) is chosen as the model, and this binder-free cathode can exclude interference from the binder and conductive additives. With a systematic electrochemical investigation of the loading sulfur in such oxide- and phosphide-based hosts (CF/Fe3O4@C and CF/FeP@C), it is found that CF/FeP@C@S shows much superior Li-S performances. The greatly enhanced performance of CF/FeP@C@S suggests that FeP can well suppress the shuttle effect of LPS and accelerate their transformation during the charge-discharge process. The first-principles calculations reveal the performance variations of Fe3O4 and FeP in Li-S batteries mainly because the shifts of the p band of the FeP could accelerate the interfacial electronics transfer dynamics by increasing the electronic concentration in the Fermi level of adsorbed Li2S4. The current work sheds light on the promising design of superior Li-S batteries from both theoretical and experimental aspects.
Collapse
Affiliation(s)
- Jiadong Shen
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Xijun Xu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Jun Liu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Zhengbo Liu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Fangkun Li
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Renzong Hu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Jiangwen Liu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| | - Xianhua Hou
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering , South China Normal University , Guangzhou 510006 , China
| | - Yuezhan Feng
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education , Zhengzhou University , Zhengzhou 450002 , China
| | - Yan Yu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science and Engineering, Key Laboratory of Materials for Energy Conversion, Chinese Academy of Sciences , University of Science and Technology of China , Hefei , Anhui 230026 , China
- State Key Laboratory of Fire Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Min Zhu
- School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials , South China University of Technology , Guangzhou , 510641 , China
| |
Collapse
|
49
|
Yan X, You H, Liu W, Wang X, Wu D. Free-Standing and Heteroatoms-Doped Carbon Nanofiber Networks as a Binder-Free Flexible Electrode for High-Performance Supercapacitors. Nanomaterials (Basel) 2019; 9:E1189. [PMID: 31443570 DOI: 10.3390/nano9091189] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/16/2019] [Accepted: 08/18/2019] [Indexed: 12/12/2022]
Abstract
Flexible and heteroatoms-doped (N, O and P) activated carbon nanofiber networks (ACFNs) have been successfully prepared with a mixture of polyamic acid (PAA) and poly(diaryloxyphosphazene) (PDPP) as a solution through electrospinning, followed by a heat post-treatment. The resultant heteroatoms-doped ACFNs can be used as binder-free electrodes for high-performance flexible supercapacitors (SCs) due to lightweight, three-dimensional open-pore structure and good mechanical strength. Despite its surface area being lower than 130.6 m2·g-1, the heteroatoms-doped ACFNs exhibited a high heteroatoms (N, O and P) content of 17.9%, resulting in a highly specific capacitance of 182 F·g-1 at a current density of 1 A·g-1 in 6 M KOH electrolyte in a two-electrode cell and an excellent rate capability of 74.7% of its initial capacitance from 1 A·g-1 to 10 A·g-1 under the mass loading of 1.5 mg·cm-2. The electrical double-layer (EDL) capacitance and pseudocapacitance can be easily decoupled in the heteroatoms-doped mesoporous ACFNs. SCs device based on heteroatoms-doped ACFNs exhibited a high energy density of 6.3 W·h·kg-1 with a power density of 250 W·kg-1, as well as excellent cycling stability with 88% capacitance retention after 10,000 charge-discharge cycles. The excellent electrochemical performance was attributed to the mesoporous structure of ACFNs and pseudocapacitive heteroatoms.
Collapse
|
50
|
Li Q, Li D, Wang H, Wang HG, Li Y, Si Z, Duan Q. Conjugated Carbonyl Polymer-Based Flexible Cathode for Superior Lithium-Organic Batteries. ACS Appl Mater Interfaces 2019; 11:28801-28808. [PMID: 31313916 DOI: 10.1021/acsami.9b06437] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Conjugated carbonyl compounds are deemed as high theoretical capacity and green electrode materials for lithium-ion batteries (LIBs) but are limited by their high dissolution and poor electronic conductivity. In this paper, we have successfully synthesized a series of multicarbonyl conjugated polymers using the coupling polymerization reaction and then constructed carbonyl-conjugated polymer/carbon nanotube hybrid films by a vacuum-filtration method. Importantly, the hybrid films could serve as a flexible, binder-free, and free-standing organic cathode for LIBs, which could deliver a high reversible discharge capacity of 142.3 mAh g-1 at 50 mA g-1, good cycling stability with a capacity retention of 74.6% at 500 mA g-1 after 300 cycles, and excellent rate capability of 120.6 mAh g-1 at 1000 mA g-1. In addition, the theoretical calculation has proved that the symmetrical conjugated structure can well accommodate four Li+ ions during the electrochemical reaction. Interestingly, the assembled full cell and flexible battery can power the small devices, suggesting its potential to use in bendable or wearable energy-storages devices.
Collapse
Affiliation(s)
- Qiang Li
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
| | - Dongni Li
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
| | - Haidong Wang
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
| | - Heng-Guo Wang
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
- Engineering Research Center of Optoelectronic Functional Materials , Ministry of Education , Changchun 130022 , China
| | - Yanhui Li
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
| | - Zhenjun Si
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
| | - Qian Duan
- School of Materials Science and Engineering , Changchun University of Science and Technology , Changchun 130022 , China
- Engineering Research Center of Optoelectronic Functional Materials , Ministry of Education , Changchun 130022 , China
| |
Collapse
|