期刊
SMALL
卷 13, 期 44, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201702702
关键词
atomic layer deposition; carbothermic reduction; hybrid textile; supercapacitors
类别
资金
- R&D Convergence Program of MSIP (Ministry of Science, ICT and Future Planning) of Republic Korea
- NST (National Research Council of Science & Technology) of Republic Korea [CAP-13-2-ETRI]
- Korea Institute of Machinery and Materials [SC1240]
- National Research Council of Science & Technology (NST), Republic of Korea [SC1240, CAP-13-2-ETRI] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
It is demonstrated that, via V2O5 coating by low temperature atomic layer deposition and subsequent pyrolysis, ubiquitous cotton textile can readily turn into high-surface-area carbon textile fully decorated with pseudocapacitive VxOy/VC widely usable as electrodes of high-performance supercapacitor. It is found that carbothermic reduction of V2O5 (C + V2O5 -> C' + VC + CO/ CO2(g)) leads to chemical/mechanical activation of carbon textile, thereby producing high-surface-area conductive carbon textile. In addition, sequential phase transformation and carbide formation (V2O5 -> VxOy -> VC) occurred by carbothermic reduction trigger decoration of the carbon textile with redox-active VxOy/VC. Thanks to the synergistic effect of electrical double layer and pseudocapacitance, the supercapacitors made of the hybrid carbon textile exhibit far better energy density (over 30-fold increase) with excellent cycling stability than the carbon textile simply undergone pyrolysis. The method can open up a promising and facile way to synthesize hybrid electrode materials for electrochemical energy storages possessing advantages of both electrical double layer and pseudocapacitive material.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据