Multimetallic metal-organic frameworks derived transition metal doped iron selenide arrays for efficient oxygen evolution reaction
Xin Wei,
Yabo Xie,
Mingcheng Liu,
Jian Zhou,
Awu Zhou,
Pengchen He,
Yibo Dou,
Jian-Rong Li
Affiliations
Xin Wei
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Yabo Xie
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Mingcheng Liu
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Jian Zhou
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Awu Zhou
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Pengchen He
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Yibo Dou
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
Jian-Rong Li
Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China
A feasible and general strategy based multimetallic metal-organic frameworks template is developed to fabricate hierarchical structured multimetallic selenide. The obtained series of transition metal doped iron selenide exhibit high performance for oxygen evolution reaction (OER). Especially, the Cu-doped FeSe2 electrocatalyst shows the lowest overpotential of 193 mV at a current density of 10 mA cm−2 which outperforms previously reported selenide-based electrocatalysts. The experimental results and theoretical simulations demonstrate that the doping of substitutional Cu in the host lattice of FeSe2 optimizes the electronic structure, being favorable for accelerating the electron transfer and boosting reaction kinetic. Meanwhile, the special structure design enables the electrocatalyst with hierarchical structures, affording rich exposed active sites for efficient OER. Therefore, this work provides a feasible strategy for fabricating hierarchical structured metal selenides for potential electrochemical energy storage and conversion.
