Iron-cation-coordinated cobalt-bridged-selenides nanorods for highly efficient photo/electrochemical water splitting

Ibraheem, Shumaila ¹Yasin, Ghulam ¹Kumar, Anuj ²Mushtaq, Muhammad Asim ³Ibrahim, Sehrish ¹Iqbal, Rashid ³Tabish, Mohammad ⁴Ali, Sajjad ¹Saad, Ali

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作者信息

1. Shenzhen Univ
2. GLA Univ
3. Beijing Univ Chem Technol
4. Southern Univ Sci & Technol
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Abstract

Water-electrolysis intends a favorable green technology to hold the worldwide energy and ecological disaster, but its efficacy is significantly restricted by the slow reaction kinetics of both the anodic oxygen evolution reaction (OER) and cathodic hydrogen evolution reaction (HER). Herein, the fabrication of multi-cation incorporated Fe2+/3+/Co2+ species into selenides nanorods (Fe@Co/Se-2-NRs) and corresponding analysis of their catalytic activity for electrochemical (EC) and solar-driven water splitting as a purpose of the composition are reported. This efficient approach can fabulously endow electronic structure modulation and the direct evidence of electron-transfer-route between transition-metals and selenides, which are vital to improving the electrocatalytic activity, has never been confirmed before. For the first time, we explored the electron-transfer route of intensely-coupled Fe@Co/Se-2-NRs catalyst, in which the Fe2+/3+/Co2+ species strongly-coupled to selenide through the Fe-coordinated Co-bridged-bond. Finally, density functional theory calculations disclose that the multi-cation doping effects into selenides are vital for enhanced electrocatalytic performance.

Key words

Photo/electrochemical water splitting/Synergistic electrocatalysis/Oxygen evolution reaction/Hydrogen evolution reaction/Fe-coordinated Co-Se-bridging-bond/HYDROGEN EVOLUTION/BIFUNCTIONAL ELECTROCATALYSTS/REDUCTION/CATALYST/ELECTROLYSIS/CONVERSION/UNIVERSAL/CARBON/NI

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量80

参考文献量58

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