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兰州大学机构库  > 化学化工学院  > 期刊论文
题名: Ultrasonication-assisted ultrafast preparation of multiwalled carbon nanotubes/Au/Co3O4 tubular hybrids as superior anode materials for oxygen evolution reaction
作者: Fang, YY; Li, XZ; Hu, YP; Li, F; Lin, XQ; Tian, M; An, XC; Fu, Y; Jin, J(靳军); Ma, JT(马建泰)
收录类别: SCIE ; EI
出版日期: 2015-12-30
刊名: JOURNAL OF POWER SOURCES
卷号: 300, 页码:285-293
英文摘要: Efficient and simple operation electrocatalysts for the oxygen evolution reaction (OER) are essential components of renewable energy technologies. Here, a novel, simple, and efficient routine is presented for the first time by constructing a high-efficiency anode catalyst for OER. With the aid of high intensity ultrasound, a uniformly loading, conductive multiwalled carbon nanotubes/metal/transition metal-oxide (CNTs-Au@CO3O4) tubular hybrids is synthesized. In alkaline media, the materials catalyze OER with an onset potential of 1.56 V vs. reversible hydrogen electrode (RHE) and overpotential only of 350 mV to achieve a stable current density of 10 mA cm(-2) for at least 25 h. The unusual catalytic activity and stability is due to the following elements. Firstly, the tubular architecture not only provides sufficient active centers for OER, but also improves rapid mass/charge transport. Secondly, Co3O4 layer protects Au nanoparticles (NPs) against detachment. In addition, we also prove that the highest electronegativity metal Au accelerate the formation of catalytic active sites of Co-IV species for OER. It is believed that this simple preparation method paves a way to fabricate a range of CNTs/metal/metal-oxide based composites as superior OER catalysts. (C) 2015 Elsevier B.V. All rights reserved.
关键词: Ultrasonic approach ; Multiwalled carbon nanotubes ; Au nanoparticles ; Co3O4 layer ; Oxygen evolution reaction
作者部门: [Fang, Yiyun ; Li, Xinzhe ; Li, Feng ; Lin, Xiaoqing ; Tian, Min ; Jin, Jun ; Ma, Jiantai] Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Catalyt Engn Gansu Prov, Lanzhou 730000, Peoples R China ; [Hu, Yiping] Northwest Normal Univ, Coll Chem Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Peoples R China ; [An, Xingcai] Gansu Acad Sci, Nat Energy Inst, Lanzhou 730046, Gansu, Peoples R China ; [Fu, Yan] Northwest Yongxin Coatings Co Ltd, Lanzhou 730046, Gansu, Peoples R China
通讯作者: Ma, JT (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Catalyt Engn Gansu Prov, Lanzhou 730000, Peoples R China.
学科分类: Electrochemistry; Energy & Fuels
文章类型: Article
所属项目编号: National Science Foundation of China [21345003] ; Fundamental Research Funds for the Central Universities [LZUjbky-2015-16] ; Natural Science Foundation of Gansu [145RJZA132, 143GKA013] ; Key Laboratory of Catalytic Engineering of Gansu Province and Resources Utilization, Gansu Province
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金 ; 甘肃省自然科学基金计划
项目资助者: NSFC ; LZU ; GSSTD
语种: 英语
DOI: 10.1016/j.jpowsour.2015.09.049
ISSN号: 0378-7753
WOS记录号: WOS:000364439400034
EI记录号: 20154001332332
IR记录号: WOS:000364439400034
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/180276
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Fang, YY,Li, XZ,Hu, YP,et al. Ultrasonication-assisted ultrafast preparation of multiwalled carbon nanotubes/Au/Co3O4 tubular hybrids as superior anode materials for oxygen evolution reaction[J]. JOURNAL OF POWER SOURCES,2015,300:285-293.
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