Ultrafast synthesis of halogen-doped Ru-based electrocatalysts with electronic regulation for hydrogen generation in acidic and alkaline media

Qichang Li; Yuxiao Gao; Mengzhen Liu; Weiping Xiao; Guangrui Xu; Zhenjiang Li; Fusheng Liu; Lei Wang; Zexing Wu

doi:10.1016/j.jcis.2023.05.065

Ultrafast synthesis of halogen-doped Ru-based electrocatalysts with electronic regulation for hydrogen generation in acidic and alkaline media

J Colloid Interface Sci. 2023 Sep 15:646:391-398. doi: 10.1016/j.jcis.2023.05.065. Epub 2023 May 14.

Authors

Qichang Li¹, Yuxiao Gao¹, Mengzhen Liu¹, Weiping Xiao², Guangrui Xu³, Zhenjiang Li³, Fusheng Liu⁴, Lei Wang¹, Zexing Wu⁵

Affiliations

¹ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
² College of Science, Nanjing Forestry University, Nanjing 210037, Jiangsu, China.
³ School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
⁴ College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China. Electronic address: liufusheng63@sina.com.
⁵ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China. Electronic address: splswzx@qust.edu.cn.

PMID: 37207421
DOI: 10.1016/j.jcis.2023.05.065

Abstract

Developing a facile and time-saving method for preparing hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) electrocatalysts can accelerate the practical applications of hydrogen energy. In this study, halogen (X = F, Cl, Br and I) doped Ru-RuO₂ on carbon cloth (CC) (X-Ru-RuO₂/MCC) was synthesized via an ultrafast microwave-assisted method for 30 s. Particularly, the doped Br (Br-Ru-RuO₂/MCC) significantly improved the electrocatalytic performances of the catalyst through the regulation of electronic structures. Then, the Br-Ru-RuO₂/MCC catalyst featured HER overpotentials of 44 mV and 77 mV in 1.0 M KOH and 0.5 M H₂SO₄, and the OER overpotential of 300 mV at 10 mA cm^-2 in 1.0 M KOH. This study provides a novel method for developing of halogen-doped catalysts.

Keywords: Electrocatalysts; Halogen element; Hydrogen/oxygen evolution reaction; Microwave.