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George A, Kundu M. Exchanging Anion in CuCo-Carbonate Double Hydroxide for Faradaic Supercapacitors: A Case Study. ACS OMEGA 2023; 8:17028-17042. [PMID: 37214677 PMCID: PMC10193391 DOI: 10.1021/acsomega.3c01211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A systematic synthetic method involving the anion exchange process was designed and developed to fabricate the superior functioning three-dimensional (3-D) urchin-architectured copper cobalt oxide (CuCo2O4; CCO) and copper cobalt sulfide (CuCo2S4; CCS) electrode materials from copper-cobalt carbonate double hydroxide [(CuCo)2(CO3)(OH)2; CCH]. The effective tuning of chemical, crystalline, and morphological properties was achieved during the derivatization process of CCH, based on the anion exchange effect and phase transformation without altering the 3-D spatial assembly. Benefiting from morphological and structural advantages, CCO and CCS exhibited superior electrochemical activity with capacity values of 1508 and 2502 C g-1 at 10 A g-1 to CCH (1182 C g-1 at 10 A g-1). The thermal treatment of CCH has generated a highly porous nature in nanospikes of 3-D urchin CCO structures, which purveys betterment in electrochemical phenomena than pristine smooth-surfaced CCH. Meanwhile, the sulfurization reaction induced the anion effect to a greater extent in the CCS morphology, resulting in hierarchical 3-D urchins formed by 1-D nanospikes constituting coaxially swirled 2-D nanosheets with high exposure of active sites, specific surface areas, and 3-D electron/ion transportation channels. The asymmetric supercapacitor was constructed with a superior CCS electrode as a cathode and an activated carbon electrode as an anode, showing a high specific capacity of 287.35 C g-1 at 7 A g-1 and durability for 5000 cycles with 94.2% retention at a high current density of 30 A g-1. The ultrahigh energy and power density of 135.3 W h kg-1 (10 A g-1) and 44.35 kW kg-1 (30 A g-1) were harvested during the PC device performance. Our finding proposes an idea about the importance of anions and phase transformation as a versatile tool for engineering high-functioning electrode materials and their endeavor toward overwhelming the major demerit of SCs by aggrandizing the energy density value and rate performance.
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Zhang J, Sun N, Yin B, Su Y, Ji S, Huan Y, Wei T. Regulating Ni 3+ contents by a cobalt doping strategy in ternary Ni xCo 3−xAl 1-LDH nanoflowers for high-performance charge storage. Dalton Trans 2022; 51:16957-16963. [DOI: 10.1039/d2dt02893j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Ni1Co2Al1-LDH electrode prepared by hydrothermal method delivers a high specific capacitance (728 C g−1 at 1 A g−1) and excellent capacitance retention (93.18% of initial capacitance at 30 A g−1 after 10 000 cycles).
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Affiliation(s)
- Jiaqi Zhang
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Ningqiang Sun
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Baoyi Yin
- School of Microelectronics, Dalian University of Technology, Dalian, 116024, China
| | - Yuanhui Su
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Shuaijing Ji
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yu Huan
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Tao Wei
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
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3
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Li Y, Yan X, Zhang W, Zhou W, Zhu Y, Zhang M, Zhu W, Cheng X. Hierarchical micro-nano structure based NiCoAl-LDH nanosheets reinforced by NiCo2S4 on carbon cloth for asymmetric supercapacitor. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115982] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Constructing an efficient conductive network with carbon-based additives in metal hydroxide electrode for high-performance hybrid supercapacitor. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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6
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Samuei S, Rezvani Z, Shomali A, Ülker E, Karadaş F. Preparation and Capacitance Properties of Graphene Quantum Dot/NiFe−Layered Double‐Hydroxide Nanocomposite. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sara Samuei
- Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences Azarbaijan Shahid Madani University East Azarbaijan 5173865955 Tabriz Iran
| | - Zolfaghar Rezvani
- Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences Azarbaijan Shahid Madani University Tabriz Iran
| | - Ashkan Shomali
- Department of Chemistry, Faculty of Sciences Azerbaijan Shahid Madani University Tabriz Iran
| | - Emine Ülker
- Department of Chemistry, Faculty of Arts & Science Recep Tayyip Erdogan University Turkey
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7
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Development of Ti/Ni Nanolayered Structures to Be a New Candidate for Energy Storage Applications. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10196935] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Development of electrochemical supercapacitor electrode is the best way to improve the performance and conductivity of the alone materials and support energy storage devices. In this work, cyanate anions have used as building blocks to build series of nanolayered materials based on Ti/Ni layered double hydroxides (LDHs). The structural and morphological characteristics of the prepared Ti/Ni LDHs were examined using different techniques. The electrochemical supercapacitive behavior of the prepared LDHs was observed in the three-assembly electrochemical cell. These results showed that the optimized ratio of the nickel and titanium plays an important role to enhance the electrochemical performance of the LDHs. The optimized Ti/Ni LDHs, which has the highest content of titanium, showed the highest specific capacitance (675 F/g) value. In this trend, this LDH also retain a high percentage of the cyclic retention after long cyclic charging-discharging process. The enhanced performance could be due to the double layer structure, enough interplanar distance between the layer, and large number of exposed active site within the double layer structure of the LDHs. Finally, although there are no reports for the electrochemical supercapacitive performance of Ti/Ni LDHs in the literature, it is interesting to produce a new candidate for energy storage applications.
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Chodankar NR, Pham HD, Nanjundan AK, Fernando JFS, Jayaramulu K, Golberg D, Han YK, Dubal DP. True Meaning of Pseudocapacitors and Their Performance Metrics: Asymmetric versus Hybrid Supercapacitors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002806. [PMID: 32761793 DOI: 10.1002/smll.202002806] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/12/2020] [Indexed: 05/13/2023]
Abstract
The development of pseudocapacitive materials for energy-oriented applications has stimulated considerable interest in recent years due to their high energy-storing capacity with high power outputs. Nevertheless, the utilization of nanosized active materials in batteries leads to fast redox kinetics due to the improved surface area and short diffusion pathways, which shifts their electrochemical signatures from battery-like to the pseudocapacitive-like behavior. As a result, it becomes challenging to distinguish "pseudocapacitive" and "battery" materials. Such misconceptions have further impacted on the final device configurations. This Review is an earnest effort to clarify the confusion between the battery and pseudocapacitive materials by providing their true meanings and correct performance metrics. A method to distinguish battery-type and pseudocapacitive materials using the electrochemical signatures and quantitative kinetics analysis is outlined. Taking solid-state supercapacitors (SSCs, only polymer gel electrolytes) as an example, the distinction between asymmetric and hybrid supercapacitors is discussed. The state-of-the-art progress in the engineering of active materials is summarized, which will guide for the development of real-pseudocapacitive energy storage systems.
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Affiliation(s)
- Nilesh R Chodankar
- Department of Energy & Materials Engineering, Dongguk University, Seoul, 100-715, Republic of Korea
| | - Hong Duc Pham
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Ashok Kumar Nanjundan
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Joseph F S Fernando
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Kolleboyina Jayaramulu
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu, Jammu & Kashmir, 181221, India
| | - Dmitri Golberg
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - Young-Kyu Han
- Department of Energy & Materials Engineering, Dongguk University, Seoul, 100-715, Republic of Korea
| | - Deepak P Dubal
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
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9
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Li HB, Xiao GF, Zeng HY, Cao XJ, Zou KM, Xu S. Supercapacitor based on the CuCo2S4@NiCoAl hydrotalcite array on Ni foam with high-performance. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136500] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Gao X, Wang P, Pan Z, Claverie JP, Wang J. Recent Progress in Two-Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors. CHEMSUSCHEM 2020; 13:1226-1254. [PMID: 31797566 DOI: 10.1002/cssc.201902753] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/28/2019] [Indexed: 06/10/2023]
Abstract
High-performance supercapacitors have attracted great attention due to their high power, fast charging/discharging, long lifetime, and high safety. However, the generally low energy density and overall device performance of supercapacitors limit their applications. In recent years, the design of rational electrode materials has proven to be an effective pathway to improve the capacitive performances of supercapacitors. Layered double hydroxides (LDHs), have shown great potential in new-generation supercapacitors, due to their unique two-dimensional layered structures with a high surface area and tunable composition of the host layers and intercalation species. Herein, recent progress in LDH-based, LDH-derived, and composite-type electrode materials targeted for applications in supercapacitors, by tuning the chemical/metal composition, growth morphology, architectures, and device integration, is reviewed. The complicated relationships between the composition, morphology, structure, and capacitive performance are presented. A brief projection is given for the challenges and perspectives of LDHs for energy research.
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Affiliation(s)
- Xiaorui Gao
- School of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu, Jiangsu, 215500, PR China
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Peikui Wang
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Jerome P Claverie
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
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11
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Controllable in situ growth of amorphous MoS nanosheets on CoAl layered double hydroxides for efficient oxygen evolution reaction. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2019.106634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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12
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Meng S, Wang Y, Zhang Y, Xu Q, Jiang D, Chen M. Designing positive electrodes based on 3D hierarchical CoMn2O4@NiMn-LDH nanoarray composites for high energy and power density supercapacitors. CrystEngComm 2020. [DOI: 10.1039/d0ce01131b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
3D hierarchical CoMn2O4@NiMn-LDH core–shell nanowire arrays as positive electrodes for high energy and power density supercapacitors.
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Affiliation(s)
- Suci Meng
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yintao Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yuqi Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Qing Xu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Min Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
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13
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MgAl-layered double hydroxide flower arrays grown on carbon paper for efficient electrochemical sensing of nitrite. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Le K, Gao M, Liu W, Liu J, Wang Z, Wang F, Murugadoss V, Wu S, Ding T, Guo Z. MOF-derived hierarchical core-shell hollow iron-cobalt sulfides nanoarrays on Ni foam with enhanced electrochemical properties for high energy density asymmetric supercapacitors. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134826] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Dhanasekaran T, Manigandan R, Padmanaban A, Suresh R, Giribabu K, Narayanan V. Fabrication of Ag@Co-Al Layered Double Hydroxides Reinforced poly(o-phenylenediamine) Nanohybrid for Efficient Electrochemical Detection of 4-Nitrophenol, 2,4-Dinitrophenol and Uric acid at Nano Molar Level. Sci Rep 2019; 9:13250. [PMID: 31519946 PMCID: PMC6744444 DOI: 10.1038/s41598-019-49595-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 08/05/2019] [Indexed: 12/17/2022] Open
Abstract
In this paper, Co-Al layered double hydroxides (LDHs), Co-Al LDHs/poly(o-phenylenediamine) (PoPD) and Ag nanoparticles decorated Co-Al LDHs/PoPD (Ag@Co-Al LDH/PoPD) samples were prepared. The as-prepared samples were characterized by XRD, Raman, XPS, FT-IR, DRS-UV-Vis, PL and TGA techniques. The salient features of morphology and size of the samples were determined using FESEM, and HR-TEM. Then, the samples were coated on glassy carbon electrode (GCE) and employed for sensing of 4-nitrophenol (4-NP), 2,4-dinitrophenol (2,4-DNP)) and uric acid (UA). It was found that Ag@Co-Al LDH/PoPD/GCE showed superior electrochemical sensing behaviour than other modified electrodes. It exhibits the detection limit (DL) of 63 nM, 50 nM and 0.28 µM for 4-NP, 2,4-DNP and UA respectively.
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Affiliation(s)
- T Dhanasekaran
- Department of Inorganic Chemistry, University of Madras, Chennai, India
- National Centre for Sustainable Coastal Management, Anna University Campus, Chennai, India
| | - R Manigandan
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - A Padmanaban
- Department of Inorganic Chemistry, University of Madras, Chennai, India
| | - R Suresh
- Department of Analytical and Inorganic Chemistry, University of Concepcion, Concepcion, Chile
| | - K Giribabu
- Electrodics and Electrocatalysis Division, CSIR-CECRI, Karaikudi, India
| | - V Narayanan
- Department of Inorganic Chemistry, University of Madras, Chennai, India.
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16
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Ran F, Yang X, Xu X, Bai Y, Shao L. Boosting the charge storage of layered double hydroxides derived from carbon nanotube-tailored metal organic frameworks. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.142] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Young MJ, Kiryutina T, Bedford NM, Woehl TJ, Segre CU. Discovery of Anion Insertion Electrochemistry in Layered Hydroxide Nanomaterials. Sci Rep 2019; 9:2462. [PMID: 30792465 PMCID: PMC6384940 DOI: 10.1038/s41598-019-39052-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 01/14/2019] [Indexed: 11/16/2022] Open
Abstract
Electrode materials which undergo anion insertion are a void in the materials innovation landscape and a missing link to energy efficient electrochemical desalination. In recent years layered hydroxides (LHs) have been studied for a range of electrochemical applications, but to date have not been considered as electrode materials for anion insertion electrochemistry. Here, we show reversible anion insertion in a LH for the first time using Co and Co-V layer hydroxides. By pairing in situ synchrotron and quartz crystal microbalance measurements with a computational unified electrochemical band-diagram description, we reveal a previously undescribed anion-insertion mechanism occurring in Co and Co-V LHs. This proof of concept study demonstrates reversible electrochemical anion insertion in LHs without significant material optimization. These results coupled with our foundational understanding of anion insertion electrochemistry establishes LHs as a materials platform for anion insertion electrochemistry with the potential for future application to electrochemical desalination.
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Affiliation(s)
- Matthias J Young
- Applied Materials Division, Argonne National Laboratory, Argonne, Illinois, 60439, USA.
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado, 80305, USA.
- Department of Biomedical, Biological, and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA.
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, USA.
| | - Tatyana Kiryutina
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado, 80305, USA
| | - Nicholas M Bedford
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado, 80305, USA.
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Taylor J Woehl
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado, 80305, USA
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland, 20742, USA
| | - Carlo U Segre
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois, 60616, USA
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18
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Da Y, Liu J, Zhou L, Zhu X, Chen X, Fu L. Engineering 2D Architectures toward High-Performance Micro-Supercapacitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1802793. [PMID: 30133023 DOI: 10.1002/adma.201802793] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/11/2018] [Indexed: 05/23/2023]
Abstract
The rise of micro-supercapacitors is satisfying the demand for power storage in portable devices and wireless gadgets. But the miniaturization of the energy-storage components is significantly limited by their energy density. Electrode materials with adequate electrochemical active surfaces are therefore required for improving performance. 2D materials with ultralarge specific surface areas offer a broad portfolio of the development of high-performance micro-supercapacitors in spite of their several critical drawbacks. An architecture engineering strategy is therefore developed to break these natural limits and maximize the significant advantages of these materials. Based on the approaches of phase transformation, intercalation, surface modification, material hybridization, and hierarchical structuration, 2D architectures with improved conductivity, enlarged specific surface, enhanced redox activity, as well as the unique synergetic effect exhibit great promise in the application of miniaturized supercapacitors with highly enhanced performance. Herein, the architecture engineering of emerging 2D materials beyond graphene toward optimizing the performance of micro-supercapacitors is discussed, in order to promote the application of 2D architectures in miniaturized energy-storage devices.
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Affiliation(s)
- Yumin Da
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jinxin Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lu Zhou
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Xiaohui Zhu
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
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19
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Zhao J, Li Y, Chen X, Zhang H, Song C, Liu Z, Zhu K, Cheng K, Ye K, Yan J, Cao D, Wang G, Zhang X. Polyaniline-modified porous carbon tube bundles composite for high-performance asymmetric supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.178] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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You H, Xuan Y, Zuo Y, Shen F, Han X, Fang J. Insight of holey-graphene in the enhancing of electrocatalytic activity as supporting material. NANOTECHNOLOGY 2018; 29:425708. [PMID: 30070658 DOI: 10.1088/1361-6528/aad7a2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An ideal supporting material improves both activity and durability of noble metal nanoparticles in electrocatalytic reactions. Graphene possesses a high transport rate of electrons in-plane, a low cost, and stability, but, the restacking of graphene layers trap noble metal nanoparticles and make them inaccessible to reactants and results in reduced catalytic activity. Here, holey-graphene as the supporting materials for Pt nanoparticle catalysts is deeply investigated in the electrocatalytic reaction of methanol oxidation. The holey-graphene can be scalable to synthesize using our simple method described herein. The holes on the holey-graphene layer promote the access of reactants with Pt nanoparticle catalysts compared with carbon black and graphene when used as supporting materials. Density functional theory calculations and molecule dynamic simulation further explain the function of holey-graphene in the promotion of electrocatalytic activity. Holey-graphene may open extraordinary possibilities as a supporting material for electrocatalysts.
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Affiliation(s)
- Hongjun You
- School of Science, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China. Key Laboratory of Physical Electronics and Devices of Ministry of Education, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
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Gao J, Xuan H, Xu Y, Liang T, Han X, Yang J, Han P, Wang D, Du Y. Interconnected network of zinc-cobalt layered double hydroxide stick onto rGO/nickel foam for high performance asymmetric supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.043] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Liang T, Xuan H, Xu Y, Gao J, Han X, Yang J, Han P, Wang D, Du Y. Rational Assembly of CoAl-Layered Double Hydroxide on Reduced Graphene Oxide with Enhanced Electrochemical Performance for Energy Storage. ChemElectroChem 2018. [DOI: 10.1002/celc.201800510] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Liang
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Haicheng Xuan
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Yuekui Xu
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Jinhong Gao
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Xiaokun Han
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Jing Yang
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Peide Han
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
| | - Dunhui Wang
- National Laboratory of Solid State Microstructures Key Laboratory of Nanomaterials for Jiang Su Province; Nanjing University; Nanjing 210093 People's Republic of China
| | - Youwei Du
- College of Materials Science and Engineering Key laboratory of interface science and engineering in advanced materials Ministry of Education; Taiyuan University of Technology; Taiyuan 030024 People's Republic of China
- National Laboratory of Solid State Microstructures Key Laboratory of Nanomaterials for Jiang Su Province; Nanjing University; Nanjing 210093 People's Republic of China
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