Boosting OER performance of IrO2 in acid via urchin-like hierarchical-structure design

Qian Deng; You Sun; Jin Wang; Shengding Chang; Muwei Ji; Yunteng Qu; Kai Zhang; Bo Li

doi:10.1039/D1DT00329A

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Boosting OER performance of IrO₂ in acid via urchin-like hierarchical-structure design†

Qian Deng,‡^ab You Sun,‡^b Jin Wang,

‡*^ab Shengding Chang,^b Muwei Ji,

^bc Yunteng Qu,^d Kai Zhang^b and Bo Li*^b

Author affiliations

* Corresponding authors

^a College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
E-mail: wangjin19@szu.edu.cn

^b Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
E-mail: boli@mail.tsinghua.edu.cn

^c College of Chemistry and Environment Engineering, Shenzhen University, Shenzhen 518060, China

^d Department of Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei 230026, China

Abstract

Urchin-like hierarchical IrO₂ nanostructures, which are obtained by a surfactant-free, wet-chemical approach, show boosted OER performance in acid with an overpotential of 260 mV @10 mA cm⁻²_geo under optimal pocessing conditions. The overpotential @10 mA cm⁻²_geo can be kept below 285 mV for over 30 hours.

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Article information

DOI: https://doi.org/10.1039/D1DT00329A
Article type: Communication
Submitted: 29 Jan 2021
Accepted: 13 Apr 2021
First published: 14 Apr 2021

Download Citation

Dalton Trans., 2021,50, 6083-6087

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Boosting OER performance of IrO₂ in acid via urchin-like hierarchical-structure design

Q. Deng, Y. Sun, J. Wang, S. Chang, M. Ji, Y. Qu, K. Zhang and B. Li, Dalton Trans., 2021, 50, 6083 DOI: 10.1039/D1DT00329A

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