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Issue 90, 2020
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Accelerating charge transfer to enhance H2 evolution of defect-rich CoFe2O4 by constructing a Schottky junction

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Abstract

We demonstrate a charge transfer boosted hydrogen (H2) evolution of transition metal oxides via a 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 electron movement happened from FeNi/DCF to NC. The H2 evolution activity of FeNi/DCF/NC showed 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 the H2 evolution reaction and related reactions.

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

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Article information


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

Chem. Commun., 2020,56, 14019-14022
Article type
Communication

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

Y. Wang, B. Liu, Y. Liu, C. Song, W. Wang, W. Li, Q. Feng and Y. Lei, Chem. Commun., 2020, 56, 14019
DOI: 10.1039/D0CC05656A

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