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Chen X, Dong X, Zhang C, Zhu M, Ahmed E, Krishnamurthy G, Rouzbahani R, Pobedinskas P, Gauquelin N, Jannis D, Kaur K, Hafez AME, Thiel F, Bornemann R, Engelhard C, Schönherr H, Verbeeck J, Haenen K, Jiang X, Yang N. Interlayer Affected Diamond Electrochemistry. SMALL METHODS 2024:e2301774. [PMID: 38874124 DOI: 10.1002/smtd.202301774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Diamond electrochemistry is primarily influenced by quantities of sp3-carbon, surface terminations, and crystalline structure. In this work, a new dimension is introduced by investigating the effect of using substrate-interlayers for diamond growth. Boron and nitrogen co-doped nanocrystalline diamond (BNDD) films are grown on Si substrate without and with Ti and Ta as interlayers, named BNDD/Si, BNDD/Ti/Si, and BNDD/Ta/Ti/Si, respectively. After detailed characterization using microscopies, spectroscopies, electrochemical techniques, and density functional theory simulations, the relationship of composition, interfacial structure, charge transport, and electrochemical properties of the interface between diamond and metal is investigated. The BNDD/Ta/Ti/Si electrodes exhibit faster electron transfer processes than the other two diamond electrodes. The interlayer thus determines the intrinsic activity and reaction kinetics. The reduction in their barrier widths can be attributed to the formation of TaC, which facilitates carrier tunneling, and simultaneously increases the concentration of electrically active defects. As a case study, the BNDD/Ta/Ti/Si electrode is further employed to assemble a redox-electrolyte-based supercapacitor device with enhanced performance. In summary, the study not only sheds light on the intricate relationship between interlayer composition, charge transfer, and electrochemical performance but also demonstrates the potential of tailored interlayer design to unlock new capabilities in diamond-based electrochemical devices.
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Affiliation(s)
- Xinyue Chen
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Ximan Dong
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Chuyan Zhang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Meng Zhu
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Essraa Ahmed
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Giridharan Krishnamurthy
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Rozita Rouzbahani
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Paulius Pobedinskas
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Nicolas Gauquelin
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Daen Jannis
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Kawaljit Kaur
- Physical Chemistry I, Department of Chemistry and Biology and Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Aly Mohamed Elsayed Hafez
- Analytical Chemistry, Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Felix Thiel
- Institute for High Frequency and Quantum Electronics, University of Siegen, 57076, Siegen, Germany
| | - Rainer Bornemann
- Institute for High Frequency and Quantum Electronics, University of Siegen, 57076, Siegen, Germany
| | - Carsten Engelhard
- Analytical Chemistry, Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Holger Schönherr
- Physical Chemistry I, Department of Chemistry and Biology and Department of Chemistry and Biology and Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), University of Siegen, 57075, Siegen, Germany
| | - Johan Verbeeck
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Antwerp, 2020, Belgium
| | - Ken Haenen
- Institute for Materials Research (IMO), Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Nianjun Yang
- Department of Chemistry, Institute for Materials Research in MicroElectronics (IMOMEC), IMEC vzw, Hasselt University, Diepenbeek, 3590, Belgium
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Cui Z, Wang T, Geng Z, Wan L, Liu Y, Xu S, Gao N, Li H, Yang M. CoNiO 2/Co 3O 4 Nanosheets on Boron Doped Diamond for Supercapacitor Electrodes. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:474. [PMID: 38470803 DOI: 10.3390/nano14050474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024]
Abstract
Developing novel supercapacitor electrodes with high energy density and good cycle stability has aroused great interest. Herein, the vertically aligned CoNiO2/Co3O4 nanosheet arrays anchored on boron doped diamond (BDD) films are designed and fabricated by a simple one-step electrodeposition method. The CoNiO2/Co3O4/BDD electrode possesses a large specific capacitance (214 mF cm-2) and a long-term capacitance retention (85.9% after 10,000 cycles), which is attributed to the unique two-dimensional nanosheet architecture, high conductivity of CoNiO2/Co3O4 and the wide potential window of diamond. Nanosheet materials with an ultrathin thickness can decrease the diffusion length of ions, increase the contact area with electrolyte, as well as improve active material utilization, which leads to an enhanced electrochemical performance. Additionally, CoNiO2/Co3O4/BDD is fabricated as the positive electrode with activated carbon as the negative electrode, this assembled asymmetric supercapacitor exhibits an energy density of 7.5 W h kg-1 at a power density of 330.5 W kg-1 and capacity retention rate of 97.4% after 10,000 cycles in 6 M KOH. This work would provide insights into the design of advanced electrode materials for high-performance supercapacitors.
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Affiliation(s)
- Zheng Cui
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Tianyi Wang
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Ziyi Geng
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Linfeng Wan
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yaofeng Liu
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Siyu Xu
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Nan Gao
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Hongdong Li
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Min Yang
- Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, China
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3
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Yang N, Jiang X. Rational Design of Diamond Electrodes. Acc Chem Res 2023; 56:117-127. [PMID: 36584242 DOI: 10.1021/acs.accounts.2c00644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Diamond electrodes stepped onto the stage in the early 1990s for electroanalytical applications. They possess the features of long-term chemical inertness, wide potential windows, low and stable background currents, high microstructural stability at different potentials and in different media, varied activity toward different electroactive species, reliable electrochemical response of redox systems without conventional pretreatment, high resistance to surface fouling in most cases, and possibility of forming composites with different components such as other carbon materials, carbides, and oxidizes. Most diamond electrodes are prepared in microcrystalline or nanocrystalline form using chemical vapor deposition techniques. Starting from diamond films and diamond composites, numerous nanostructured diamond electrodes have also been produced. The features of diamond electrodes are therefore heavily dependent on the growth conditions and post-treatment procures that are applied on diamond electrodes such as introduced dopant(s), surface termination(s), surface functional group(s), added components, and final structure(s). Numerous applications of diamond electrodes have been explored in the fields of electrochemical sensing, electrosynthesis, electrocatalysis, electrochemical energy storage and conversion, devices, and environmental degradation.This Account summarizes our strategies to design different diamond electrodes, including diamond films, diamond composites, as well as their nanostructures. With respect to diamond films, the modulation of their dopant(s) and surface termination(s) as well as the attachment of functional modifier(s) onto their surface are discussed. Electrochemical hydrogenation and oxygenation of diamond electrodes are detailed at an atomic scale. As the examples of designing diamond electrodes at a molecular scale, photochemical and electrochemical attachment of modifier(s) onto diamond electrodes are shown. Moreover, electrochemical grafting of diazonium salts is proposed as a new technique to identify hydrogenated, hydroxylated, and oxygenated terminations of diamond electrodes. The introduction of additional component(s) into a diamond film to form diamond composites is then overviewed, where a hydrogen-induced selective growth model is proposed to elucidate the preparation of diamond/β-SiC composites. Subsequently, the production of various diamond nanostructures from diamond films and composites by means of top-down, bottom-up, and template-free approaches is shown. Electrochemical application examples of diamond electrodes are overviewed, covering direct electrochemistry of natural Cytochrome c on a hydroxylated diamond surface, sensitive electrochemical DNA biosensing on tip-functionalized diamond nanowires, and construction of high-performance supercapacitors using diamond electrodes and redox electrolytes. Our diamond supercapacitors, also named battery-like diamond supercapacitors or diamond supercabatteries, are highlighted since they combine the features of supercapacitors and batteries. Future perspectives of diamond electrodes are outlined, ranging from their rational design and synthesis to their electrochemical applications in different fields.
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Affiliation(s)
- Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Paul-Bonatz Str. 9-11, Siegen 57076, Germany
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, Paul-Bonatz Str. 9-11, Siegen 57076, Germany
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Liu S, Zeng T, Zhang Y, Wan Q, Yang N. Coupling W 18 O 49 /Ti 3 C 2 T x MXene Pseudocapacitive Electrodes with Redox Electrolytes to Construct High-Performance Asymmetric Supercapacitors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204829. [PMID: 36344426 DOI: 10.1002/smll.202204829] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/27/2022] [Indexed: 06/16/2023]
Abstract
A pseudocapacitive electrode with a large surface area is critical for the construction of a high-performance supercapacitor. A 3D and interconnected network composed of W18 O49 nanoflowers and Ti3 C2 Tx MXene nanosheets is thus synthesized using an electrostatic attraction strategy. This composite effectively prevents the restacking of Ti3 C2 Tx MXene nanosheets and meanwhile sufficiently exposes electrochemically active sites of W18 O49 nanoflowers. Namely, this self-assembled composite owns abundant oxygen vacancies from W18 O49 nanoflowers and enough active sites from Ti3 C2 Tx MXene nanosheets. As a pseudocapacitive electrode, it shows a big specific capacitance, superior rate capability and good cycle stability. A quasi-solid-state asymmetric supercapacitor (ASC) is then fabricated using this pseudocapacitive anode and the cathode of activated carbon coupled with a redox electrolyte of FeBr3 . This ASC displays a cell voltage of 1.8 V, a capacitance of 101 F g-1 at a current density of 1 A g-1 , a maximum energy density of 45.4 Wh kg-1 at a power density of 900 W kg-1 , and a maximum power density of 18 000 W kg-1 at an energy density of 10.8 Wh kg-1 . The proposed strategies are promising to synthesize different pseudocapacitive electrodes as well as to fabricate high-performance supercapacitor devices.
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Affiliation(s)
- Shuang Liu
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Ting Zeng
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Yuanyuan Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Qijin Wan
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
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Yang N, Yu S, Zhang W, Cheng HM, Simon P, Jiang X. Electrochemical Capacitors with Confined Redox Electrolytes and Porous Electrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202380. [PMID: 35413141 DOI: 10.1002/adma.202202380] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Electrochemical capacitors (ECs), including electrical-double-layer capacitors and pseudocapacitors, feature high power densities but low energy densities. To improve the energy densities of ECs, redox electrolyte-enhanced ECs (R-ECs) or supercapbatteries are designed through employing confined soluble redox electrolytes and porous electrodes. In R-ECs the energy storage is based on diffusion-controlled faradaic processes of confined redox electrolytes at the surface of a porous electrode, which thus take the merits of high power densities of ECs and high energy densities of batteries. In the past few years, there has been great progress in the development of this energy storage technology, particularly in the design and synthesis of novel redox electrolytes and porous electrodes, as well as the configurations of new devices. Herein, a full-screen picture of the fundamentals and the state-of-art progress of R-ECs are given together with a discussion and outlines about the challenges and future perspectives of R-ECs. The strategies to improve the performance of R-ECs are highlighted from the aspects of their capacitances and capacitance retention, power densities, and energy densities. The insight into the philosophies behind these strategies will be favorable to promote the R-EC technology toward practical applications of supercapacitors in different fields.
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Affiliation(s)
- Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
| | - Siyu Yu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films, Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Advanced Technology Institute, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Patrice Simon
- CIRIMAT, UMR CNRS 5085, Université Toulouse III - Paul Sabatier, Toulouse, 31062, France
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, Siegen, 57076, Germany
- Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Science), Qingdao, 266001, China
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Cho JM, Ko YJ, Lee HJ, Choi HJ, Baik YJ, Park JK, Kwak JY, Kim J, Park J, Jeong Y, Kim I, Lee KS, Lee WS. Bottom-Up Evolution of Diamond-Graphite Hybrid Two-Dimensional Nanostructure: Underlying Picture and Electrochemical Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105087. [PMID: 34894074 DOI: 10.1002/smll.202105087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/15/2021] [Indexed: 06/14/2023]
Abstract
The diamond-graphite hybrid thin film with low-dimensional nanostructure (e.g., nitrogen-included ultrananocrystalline diamond (N-UNCD) or the alike), has been employed in many impactful breakthrough applications. However, the detailed picture behind the bottom-up evolution of such intriguing carbon nanostructure is far from clarified yet. Here, the authors clarify it, through the concerted efforts of microscopic, physical, and electrochemical analyses for a series of samples synthesized by hot-filament chemical vapor deposition using methane-hydrogen precursor gas, based on the hydrogen-dependent surface reconstruction of nanodiamond and on the substrate-temperature-dependent variation of the growth species (atomic hydrogen and methyl radical) concentration near substrate. The clarified picture provides insights for a drastic enhancement in the electrochemical activities of the hybrid thin film, concerning the detection of important biomolecule, that is, ascorbic acid, uric acid, and dopamine: their limits of detections are 490, 35, and 25 nm, respectively, which are among the best of the all-carbon thin film electrodes in the literature. This work also enables a simple and effective way of strongly enhancing AA detection.
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Affiliation(s)
- Jung-Min Cho
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young-Jin Ko
- Clean Energy Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Hak-Joo Lee
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Heon-Jin Choi
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young-Joon Baik
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jong-Keuk Park
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Joon Young Kwak
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jaewook Kim
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jongkil Park
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - YeonJoo Jeong
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Inho Kim
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Kyeong-Seok Lee
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Wook-Seong Lee
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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Guo Q, Li L, Gao G, Liu R, Einaga Y, Zhi J. Nanodiamonds Inhibit Cancer Cell Migration by Strengthening Cell Adhesion: Implications for Cancer Treatment. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9620-9629. [PMID: 33595291 DOI: 10.1021/acsami.0c21332] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanodiamonds (NDs) are a type of biocompatible nanomaterial with easily modified surfaces and are considered as promising candidates in biomedicine. In this work, the inhibition of tumor cell migration by carboxylated nanodiamonds (cNDs) was investigated. AFM-based single cell adhesion and F-actin staining experiments demonstrated that cNDs treatment could enhance cell adhesion and impair assembly of the cytoskeleton. The mechanism analysis of the regulatory protein expression level also proved that cNDs could inhibit the migration of Hela cells by preventing the epithelial-mesenchymal transition (EMT) process through the transforming growth factor β (TGF-β) signaling pathway. The in vivo pulmonary metastasis model also showed that cNDs effectively reduced the metastasis of murine B16 melanoma cells. In summary, cNDs have been demonstrated to inhibit cancer cell migration in vitro and decrease tumor metastasis in vivo. Therefore, cNDs might have potential utility for specific cancer treatment.
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Affiliation(s)
- Qingyue Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Lei Li
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Runze Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yasuaki Einaga
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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Teffu DM, Makhafola MD, Ndipingwi MM, Makhado E, Hato MJ, Iwuoha EI, Modibane KD, Makgopa K. Interrogation of Electrochemical Performance of Reduced Graphene Oxide/Metal‐organic Framework Hybrid for Asymmetric Supercabattery Application. ELECTROANAL 2020. [DOI: 10.1002/elan.202060303] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Daniel M. Teffu
- Nanotechnology Research Lab Department of Chemistry School of Physical and Mineral Sciences University of Limpopo (Turfloop) Sovenga 0727 Polokwane South Africa
| | - Mogwasha D. Makhafola
- Nanotechnology Research Lab Department of Chemistry School of Physical and Mineral Sciences University of Limpopo (Turfloop) Sovenga 0727 Polokwane South Africa
| | - Miranda M. Ndipingwi
- SensorLab Chemistry Department University of the Western Cape Cape Town South Africa
| | - Edwin Makhado
- Nanotechnology Research Lab Department of Chemistry School of Physical and Mineral Sciences University of Limpopo (Turfloop) Sovenga 0727 Polokwane South Africa
| | - Mpitloane J. Hato
- Nanotechnology Research Lab Department of Chemistry School of Physical and Mineral Sciences University of Limpopo (Turfloop) Sovenga 0727 Polokwane South Africa
| | - Emmanuel I. Iwuoha
- SensorLab Chemistry Department University of the Western Cape Cape Town South Africa
| | - Kwena D. Modibane
- Nanotechnology Research Lab Department of Chemistry School of Physical and Mineral Sciences University of Limpopo (Turfloop) Sovenga 0727 Polokwane South Africa
| | - Katlego Makgopa
- Department of Chemistry Faculty of Science Tshwane University of Technology (Acardia Campus) Pretoria 0001 South Africa
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Yang J, Chen L, Li W, Chen G, Wang L, Zhao S. A novel self-supported structure of Ce-UiO-66/TNF in a redox electrolyte with high supercapacitive performance. J Colloid Interface Sci 2020; 573:55-61. [PMID: 32276231 DOI: 10.1016/j.jcis.2020.03.115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022]
Abstract
A novel self-supported structure of Ce-UiO-66/TNF was firstly synthesized by growing Ce-UiO-66 on a TNF substrate. This novel Ce-UiO-66/TNF material was proved to possess a high supercapacitive performance in the redox electrolyte of Fe(CN)63-/4-, and it was also the first study for Ce-UiO-66 material on the supercapacitor application. High specific capacitances of 6.9 and 2.5 Fcm-2 can be achieved at large current densities of 20 and 80 mAcm-2, respectively. After 10,000 charge-discharge cycles, the capacitance retention can be kept at 95% and the coulomb efficiency can be maintained over 98%. Such outstanding electrochemical performance may be related to the redox property of the electrolyte, high specific surface area of the Ce-UiO-66 material, porous characteristic of the TNF substrate and self-supported structure of the whole electrode.
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Affiliation(s)
- Jie Yang
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China.
| | - Leishan Chen
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Weiwei Li
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Gairong Chen
- Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 450003, China
| | - Lizhen Wang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China.
| | - Shuai Zhao
- Department of Science, Chongqing University of Technology, Chongqing 400054, China
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Xu J, Yang N, Yu S, Schulte A, Schönherr H, Jiang X. Ultra-high energy density supercapacitors using a nickel phosphide/nickel/titanium carbide nanocomposite capacitor electrode. NANOSCALE 2020; 12:13618-13625. [PMID: 32558859 DOI: 10.1039/d0nr01984d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The low energy density of traditional supercapacitors has strongly restricted their applications. The utilization of novel capacitor electrodes to enhance the energy densities of supercapacitors is thus of great significance. Herein, a binder-free Ni12P5/Ni/TiC nanocomposite film is synthesized and further employed as the capacitor electrode. This nanocomposite film is grown by means of a chemical vapor deposition process, where Ni5TiO7 nanowires and a TiO2 layer are in situ converted into hierarchical interconnected three-dimensional (3D) Ni/Ni12P5 nanoparticles and a porous TiC matrix, respectively. Such a nanocomposite film exhibits an extremely high specific surface area and excellent conductivity, leading to its high capacitive performance. Remarkably, the multiple redox states of Ni species, namely two pairs of redox waves are observed in neutral aqueous solutions. At a current density of 10 mA cm-2, its specific capacitance in 1 M Na2SO4 aqueous solution is as high as 160.0 mF cm-2. The maximal energy density of a supercapacitor fabricated with this nanocomposite capacitor electrode is 42.6 W h kg-1 at a power density of 1550 W kg-1. Such an ultra-high energy density is even comparable with that of Li-batteries. The proposed supercapacitor thus has high potential for industrial applications.
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Affiliation(s)
- Jing Xu
- Institute of Materials Engineering, University of Siegen, 57076 Siegen, Germany.
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, 57076 Siegen, Germany.
| | - Siyu Yu
- Institute of Materials Engineering, University of Siegen, 57076 Siegen, Germany. and School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Anna Schulte
- Physical Chemistry I & Research Center of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, 57076 Siegen, Germany
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, 57076 Siegen, Germany
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, 57076 Siegen, Germany.
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