Study on Performance of Self-supporting Oxygen Evolution Electrocatalyst for Rapid Prepared Stainless Steel Mesh

被引：0
|
作者：
Li Y. [1 ]
Xiong T. [1 ]
Wei J. [1 ]
Muhammad-Sadeeq B. [1 ]
机构：
[1] College of Materials Science and Engineering, Hunan University, Changsha
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2021年 / 48卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Catalysis; Overpotential; Oxygen Evolution Reaction(OER); Scalable preparation; Self-supporting electrocatalyst; Water splitting;
D O I：
10.16339/j.cnki.hdxbzkb.2021.06.007
中图分类号：
学科分类号：
摘要：
The 304 stainless steel mesh was treated in a boiling solution containing 2 mol•L-1 nickel source for 120 s to obtain a self-supporting electrocatalyst(denoted SS/Ni-OH2M-120s) with excellent Oxygen Evolution Reaction(OER) performance. This self-supporting electrocatalyst facilitated industrialization and scale production. The overpotential of SS/Ni-OH2M-120s electrocatalyst obtained at the current density of 10 mA•cm-2 was 214 mV, which was about 127 mV lower than that of the blank 304 stainless steel mesh. After the constant potential polarization for 10 h at a current density of 20 mA•cm-2, the catalytic performance displayed no obvious change, indicating excellent stability. When SS/Ni-OH2M-120s anode was combined with the Pt mesh cathode(Pt-Mesh//SS/Ni-OH2M-120s) to make overall splitting water, a decomposition voltage of 1.61 V at the current density of 10 mA•cm-2 was achieved, which was 0.23 V lower than the commercial Pt-Mesh//IrO2 /SS. © 2021, Editorial Department of Journal of Hunan University. All right reserved.
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页码：45 / 51
页数：6
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