Issue 27, 2022
From the journal:

Journal of Materials Chemistry A

Interface functionalization of mesoporous ruthenium films with polyaniline for enhanced hydrogen evolution electrocatalysis at all pH values†

Zhongyao Duan,a   Mei Zhang,a   Lin Cui,a   Hongjie Yu,a   Kai Deng,a   You Xu, ORCID logo a   Ziqiang Wang, ORCID logo a   Liang Wang ORCID logo a  and  Hongjing Wang ORCID logo *a  

* Corresponding authors

a State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
E-mail: hjw@zjut.edu.cn

Abstract

The design of electrocatalysts with favorable morphologies and surface compositions is an effective strategy to prepare electrocatalysts for the hydrogen evolution reaction (HER). Herein, a polyaniline (PANI) modified mesoporous ruthenium film supported on carbon paper (mRu@PANI/CP) was successfully synthesized by a two-step electrodeposition method at room temperature. With the mesoporous film structure and PANI modification, mRu@PANI/CP displayed superior HER catalytic activity with overpotentials of 30 mV (0.5 M H2SO4), 27 mV (1.0 M KOH), and 24 mV (1.0 M PBS), respectively, at a current density of 10 mA cm−2. This work not only provides a powerful route to prepare a mesoporous Ru film, but also offers a useful interface functionalization strategy to further enhance its electrocatalytic performance, beyond the HER.

Graphical abstract: Interface functionalization of mesoporous ruthenium films with polyaniline for enhanced hydrogen evolution electrocatalysis at all pH values

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Article information

DOI
https://doi.org/10.1039/D2TA03358E
Article type
Paper
Submitted
26 Apr 2022
Accepted
13 Jun 2022
First published
13 Jun 2022

J. Mater. Chem. A, 2022,10, 14435-14440

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Interface functionalization of mesoporous ruthenium films with polyaniline for enhanced hydrogen evolution electrocatalysis at all pH values

Z. Duan, M. Zhang, L. Cui, H. Yu, K. Deng, Y. Xu, Z. Wang, L. Wang and H. Wang, J. Mater. Chem. A, 2022, 10, 14435 DOI: 10.1039/D2TA03358E

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