Interfacial composite FeOOH enhanced efficient electrocatalytic oxygen evolution of NiSe2/Ni2O3

Pan H. ¹Zhang X. ¹Jia Y. ¹Zhang Y. ¹Jiang Z. ¹Wang K. ¹Zhu L. ²Li X. ³Sun C.⁴

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作者信息

1. Institute of Materials for Energy and Environment Laboratory of New Fiber Materials and Modern Textile Growing Basis for State Key Laboratory College of Materials Science and Engineering Qingdao University
2. College of Basic Medical Qingdao Binhai University
3. Material Corrosion and Protection Key Laboratory of Sichuan province
4. Key Laboratory of New Metallic Functional Materials and Advanced Surface Engineering in Universities of Shandong School of Mechanical and Electronic Engineering Qingdao Binhai University
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Abstract

? 2022 Elsevier B.V.Electronic structure regulation is one of the essential strategies for developing advanced electrocatalysts. Herein, FeOOH was electrodeposited on the surface of NiSe2/Ni2O3, resulting in a layered NiSe2/Ni2O3/FeOOH interfacial composite with a unique hierarchical structure and strong electronic interactions. This sheet-like nanostructure provides sufficient space for mass transfer, fully exposes the active sites, and accelerates the reaction kinetics. The optimal sample exhibits excellent oxygen evolution reaction (OER) activity with a low overpotential of 270 mV at a current density of 100 mA cm?2 and a Tafel slope of only 54.7 mV dec?1. It also has excellent durability. This study provides a new perspective for developing efficient electrocatalysts by constructing interfacial composites.

Key words

Composite material/Electrocatalysis/Electronic structure/Oxygen evolution reaction

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出版年

2022

Journal of Alloys and Compounds

EISCI

ISSN：0925-8388

被引量5

参考文献量50

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