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Wang Y, Chang Z, Zhang Z, Lin J, Qian M, Wang P, Lin T, Huang F. A Facile Approach To Improve Electrochemical Capacitance of Carbons by in Situ Electrochemical Oxidation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5999-6008. [PMID: 30648842 DOI: 10.1021/acsami.8b19071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A facile approach of in situ electrochemical oxidation has been utilized to modify carbons, including activated carbon, mesoporous few-layer carbon, graphite, carbon fiber, and carbon nanotube, which induces oxygen-containing functional groups on its surface and simultaneously enhances its wettability, contributing to the improvement of capacitance. By this approach, the capacitance of commercialized activated carbon is increased by 86% in an acidic electrolyte, reaching 320 F g-1, of which more than 96% was maintained after 10 000 cyclic tests. The huge improvement stems from electrochemical redox reactions enabled by oxygen-associated groups, which do not adversely affect the porous structure and electrical conductivity. Such improvement will put carbon-based electrochemical capacitors into more practical application areas.
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Affiliation(s)
- Yuan Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Zheng Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
| | - Zhichao Zhang
- Department of Materials Science and Engineering , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Jie Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Meng Qian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Peng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Tianquan Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Massachusetts 02139 , United States
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China
- Suzhou Research Institute, Shanghai Institute of Ceramics , Chinese Academy of Sciences , 6 Liangfu Road , Taicang 215400 , Jiangsu , P. R. China
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Sun W, Chen G, Wang F, Qin Y, Wang Z, Nie J, Ma G. Polyelectrolyte-complex multilayer membrane with gradient porous structure based on natural polymers for wound care. Carbohydr Polym 2018; 181:183-190. [DOI: 10.1016/j.carbpol.2017.10.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 10/12/2017] [Accepted: 10/20/2017] [Indexed: 10/18/2022]
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Magdić K, Kvastek K, Horvat-Radošević V. Concept of spatial surface heterogeneity in impedance modelling of electrochemically activated glass-like carbon electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rennie AJR, Hall PJ. Nitrogen-enriched carbon electrodes in electrochemical capacitors: investigating accessible porosity using CM-SANS. Phys Chem Chem Phys 2013; 15:16774-8. [DOI: 10.1039/c3cp52233d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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