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Self-Supported Hierarchical IrO2@NiO Nanoflake Arrays as an Efficient and Durable Catalyst for Electrochemical Oxygen Evolution

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成果类型:
期刊论文
作者:
Liu, Jinlong;Wang, Zhenyu;Su, Kanda;Xv, Deyao;Zhao, Dan;...
通讯作者:
Qian, Dong;Yang, Chunming;Lu, Zhouguang
作者机构:
[Liu, Jinlong; Xv, Deyao; Su, Kanda; Zhao, Dan; Qian, Dong] Cent S Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Hunan, Peoples R China.
[Yang, Chunming] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China.
[Liu, Jinlong] Univ Cambridge, Dept Engn, Cambridge CB3 OFA, England.
[Lu, Zhouguang; Wang, Zhenyu] South Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518005, Peoples R China.
[Li, Junhua] Hengyang Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.
通讯机构:
[Qian, Dong] C
[Yang, Chunming] H
[Lu, Zhouguang] S
Cent S Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Hunan, Peoples R China.
Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China.
语种:
英文
关键词:
iridium dioxide;nickel oxide;nanoflake array;electrocatalyst;oxygen evolution
期刊:
ACS Applied Materials & Interfaces
ISSN:
1944-8244
年:
2019
卷:
11
期:
29
页码:
25854-25862
基金类别:
This work is financially supported by National Natural Science Foundation of China (nos 51874359, 21171174, and 21505035), Key Scientific Research Fund of Hunan Provincial Science and Technology (No. 2011GK2014), Hunan Provincial Science and Technology Plan Project (No. 2017TP1001), and Changsha Municipal Science and Technology project fund (No. kq1706062).
机构署名:
本校为其他机构
院系归属:
化学与材料科学学院
摘要:
Although traditional IrO2 nanoparticles loaded on a carbon support (IrO2@C) have been taken as a benchmark catalyst for the oxygen evolution reaction (OER), their catalytic efficiency, operation stability, and IrO2 utilization are far from satisfactory due to the inferior powdery structure and inevitable corrosion of both IrO2 and C under the oxidizing potentials. Here, a rational design of a self-supported hierarchical nanocomposite, composed of IrO2@NiO nanoparticle-built porous nanoflake arrays vertically growing on nickel foam, is proposed,...

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