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Reduction Mechanism and Capacitive Properties of Highly Electrochemically Reduced TiO2 Nanotube Arrays
文献类型:期刊论文
作者:Li, Zhen[1]  Ding, Youting[2]  Kang, Weijun[3]  Li, Cui[4]  Lin, Dong[5]  Wang, Xueyuan[6]  Chen, Zhiwen[7]  Wu, Minghong[8]  Pan, Dengyu[9]  
机构:[1]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[2]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[3]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[4]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[5]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[6]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
[7]Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai 200444, Peoples R China.;
[8]Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai 200444, Peoples R China.;
[9]Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China.;
通讯作者:Wu, MH (reprint author), Shanghai Univ, Shanghai Appl Radiat Inst, Shangda Rd 99, Shanghai 200444, Peoples R China.
年:2015
期刊名称:ELECTROCHIMICA ACTA影响因子和分区
卷:161
页码范围:40-47
增刊:不确定
收录情况:SCI(E)(WOS:000351693500006)  
所属部门:环境与化学工程学院
语言:外文
ISSN:0013-4686
被引频次:37
人气指数:247
浏览次数:247
基金:National Natural Science Foundation of China [21471098, 91233102, 11174194, 11025526]; Program for Changjiang Scholars and Innovative Research Team in University [IRT13078]; Innovation Program of Shanghai Municipal Education Commission [13YZ017, 13ZZ076]; Science and Technology Commission of Shanghai Municipality [13230500600]; Shanghai Post-doctoral Scientific Program [13R21413100]
关键词:Titanium dioxide nanotube arrays; Supercapacitors; Electrochemical reduction; Proton-electron coupled reduction mechanism
摘要:
Highly reduced and ordered TiO2 nanotube arrays have been fabricated using two-step anodization and three-electrode reduction. A proton-electron coupled reduction mechanism has been proposed based on the combined paradigms of a conventional energy-band model and chemical evolution of basic building blocks of TiO2. Under optimized reduction conditions, about 22% of Ti4+ ions in tube surface regions are converted into Ti3+ ions while the morphology of the highly reduced TiO2 nanotube arrays keeps ...More
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