Constructing heterostructured CoSe2/Ni3Se4@N-doped carbon nanosheets/ketjen black carbon as a robust oxygen evolution electrocatalyst

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成果类型：

期刊论文

作者：

Liu, Guiyu;Zhang, Zhiliang;Li, Junhua;Liu, Jinlong;Long, Xuanda;...

通讯作者：

Qian, Dong

作者机构：

[Long, Xuanda; Zhang, Zhiliang; Qian, Dong; Liu, Guiyu] Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Peoples R China.

[Li, Junhua; Liu, Guiyu] Hengyang Normal Univ, Hengyang 421008, Peoples R China.

[Liu, Jinlong] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England.

[Chen, Hong] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Guangdong, Peoples R China.

[Tong, Haixia] Changsha Univ Sci & Technol, Inst Chem & Biol Engn, Changsha 410114, Peoples R China.

通讯机构：

[Qian, Dong] C

Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Peoples R China.

语种：

英文

关键词：

Carbon;Doping (additives);Electrocatalysts;Iridium compounds;Nanosheets;Nickel compounds;Oxygen;Ruthenium compounds;Black carbon;Carbon material;Control groups;High conductivity;Hydrothermal methods;Overpotential;Oxygen evolution;Tafel slopes;Selenium compounds

期刊：

International Journal of Hydrogen Energy

ISSN：

0360-3199

年：

2020

卷：

期：

页码：

30666-30672

DOI：

10.1016/j.ijhydene.2020.08.063

基金类别：

This work was financially supported by National Natural Science Foundation of China (No. 51874359 , 21171174 and 21505035 ), and Hunan Provincial Science and Technology Plan Project (No. 2017TP1001 ).

机构署名：

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摘要：

We design and construct a novel heterostructured CoSe2/Ni3Se4@N-doped carbon nanosheets/Ketjen black carbon (denoted as CoSe2/Ni3Se4@NC/KB) via the combination of pyrolysis and hydrothermal method. As a result of the exceptional synergism between CoSe2 and Ni3Se4 as well as high conductivity of carbon materials, the obtained CoSe2/Ni3Se4@NC/KB drives an OER current density of 10 mA cm−2 by an overpotential of 260 mV and displays a low Tafel slope of 68 mV dec−1, outmanoeuvring commercial RuO2 and IrO2, control groups (i.e. Ni3Se4@NC/KB, CoSe2...

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Constructing heterostructured CoSe2/Ni3Se4@N-doped carbon nanosheets/ketjen black carbon as a robust oxygen evolution electrocatalyst

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