In-situ Generation of Hydroxyl Layers in CoO@FeSe2 Catalyst for High Selectivity Seawater Electrolysis

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外文摘要：Seawater electrolysis holds great promise for hydrogen production in the future,while the development of anodic catalysts has been severely hampered by the side-reaction,chloride evolution reaction.In this work,nano-flower-cluster structured CoO@FeSe2/CF catalysts are synthesized via a scalable electrodeposition technique,and the performance is systematically studied.The oxygen evo-lution reaction(OER)overpotential of CoO@FeSe2/CF is 267 mV at 100 mA·cm-2,which is significantly lower than that of the IrO2 catalyst(435 mV).Additionally,the catalyst shows high selectivity for OER(97.9％)and almost no loss of activity after a durability test for 1100 h.The impressive performance is attributed to the dense rod-like structure with abundant active centers after electro-chemical activation and the in-situ generated CoOOH and FeOOH that improve the catalytic activity of the catalyst.The synergistic effect induced by the non-uniform structure endows the catalyst with excellent stability.

外文关键词：

Energy TransferSeawater electrolysisOxygen evolution reactionElectrodeposition methodCoO@FeSe2/CF catalystNano-flower-cluster structureCatalytic activity

作者：

Suyang Feng、Peng Rao、Xiao Wu、Ke Li、Anyuan Qi、Yanhui Yu、Jing Li、Peilin Deng、Yuliang Yuan、Shaolei Wang、Xinlong Tian、Zhenye Kang

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作者单位：

State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Lab of Fine Chemistry,School of Chemical Engineering and Technology,Hainan University,Haikou,Hainan 570228,China

National Energy Group Ledong Power Generation Co.,Ltd.,Ledong,Hainan 572539,China

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education,School of Chemistry,Northeast Normal University,Changchun,Jilin 130024,China

基金：

海南省自然科学基金海南省自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金specific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan Provincespecific research fund of the Innovation Platform for Academicians of Hainan ProvinceInnovative Research Projects for Graduate Students of Hainan Province

项目编号：

222RC548222RC55422109034221090355216402862105083KYQDZR-20008200822008320084210652112421125Qhyb2022-86

出版年：

2024

DOI：

10.1002/cjoc.202300441

中国化学(英文版)

中国化学会上海有机化学研究所

中国化学(英文版)

CSTPCD

影响因子：0.848

ISSN：1001-604X

年,卷(期)：2024.42(1)

参考文献量47