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Amorphous FeOx (x = 1, 1.5) coated Cu3P nanosheets with bamboo leaves-like morphology induced by solvent molecule adsorption for highly active HER catalysts

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Abstract

Searching for an efficient HER catalyst in alkaline media still faces big challenges due to the sluggish water splitting kinetics as well as the hindrance of the hydrogen adsorption–desorption process. Based on this, herein, we fabricated a bamboo leaves-like amorphous FeOx (x = 1, 1.5) coated Cu3P with outstanding HER performance in alkaline media for the first time. FeOx·H2O was synthesized by the reducibility of glycol and the oxidability of soluble O2, and the bamboo leaves-like structure was induced by solvent molecule selective adsorption simultaneously. The binder-free FeOx coated Cu3P@Cu was fabricated as the catalyst for HER in 1 M KOH, which demonstrated a quite low overpotential of 48 mV at 10 mA cm−2 and was even better than that of Pt/C catalyst at a large current density. This work provided a strategy to fabricate a high-performance copper-based HER electro-catalyst.

Graphical abstract: Amorphous FeOx (x = 1, 1.5) coated Cu3P nanosheets with bamboo leaves-like morphology induced by solvent molecule adsorption for highly active HER catalysts

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Supplementary files

Article information


Submitted
25 Oct 2019
Accepted
10 Jan 2020
First published
11 Jan 2020

J. Mater. Chem. A, 2020, Advance Article
Article type
Paper

Amorphous FeOx (x = 1, 1.5) coated Cu3P nanosheets with bamboo leaves-like morphology induced by solvent molecule adsorption for highly active HER catalysts

C. Tong, R. Xiang, L. Peng, L. Tan, X. Tang, J. Wang, L. Li, Q. Liao and Z. Wei, J. Mater. Chem. A, 2020, Advance Article , DOI: 10.1039/C9TA11779B

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