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Accelerating charge transfer to enhance H2 evolution of defect-rich CoFe2O4 by constructing Schottky junction

Abstract

We demonstrate a charge transfer boosted hydrogen (H2) evolution of transition metal oxides via Schottky junction. The FeNi and metallic defect-rich CoFe2O4 (DCF) as well as semiconducting nitrogen-doped carbon (NC), named as FeNi/DCF/NC, possessed only 6.5% charge transfer resistance of DCF. Theoretical calculations indicate that the enhanced electrons movement happened from FeNi/DCF to NC. The H2 evolution activity of FeNi/DCF/NC was 5.8-fold improvement compared to that of DCF at the overpotential of 400 mV in 1.0 M KOH. This work provides an effective way to enhance the electrocatalytic activity of oxides for H2 evolution reaction and related reactions.

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Supplementary files

Article information


Submitted
19 Aug 2020
Accepted
15 Oct 2020
First published
16 Oct 2020

Chem. Commun., 2020, Accepted Manuscript
Article type
Communication

Accelerating charge transfer to enhance H2 evolution of defect-rich CoFe2O4 by constructing Schottky junction

Y. Wang, B. Liu, Y. liu, C. Song, W. Wang, W. Li, Q. Feng and Y. lei, Chem. Commun., 2020, Accepted Manuscript , DOI: 10.1039/D0CC05656A

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