Facile synthesis of porous iridium-palladium-plumbum wire-like nanonetworks with boosted catalytic performance for hydrogen evolution reaction

Ru-Lan Zhang; Jiao-Jiao Duan; Li-Ping Mei; Jiu-Ju Feng; Pei-Xin Yuan; Ai-Jun Wang

doi:10.1016/j.jcis.2020.06.124

Facile synthesis of porous iridium-palladium-plumbum wire-like nanonetworks with boosted catalytic performance for hydrogen evolution reaction

J Colloid Interface Sci. 2020 Nov 15:580:99-107. doi: 10.1016/j.jcis.2020.06.124. Epub 2020 Jul 5.

Authors

Ru-Lan Zhang¹, Jiao-Jiao Duan¹, Li-Ping Mei¹, Jiu-Ju Feng¹, Pei-Xin Yuan¹, Ai-Jun Wang²

Affiliations

¹ Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
² Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China. Electronic address: ajwang@zjnu.cn.

PMID: 32682120
DOI: 10.1016/j.jcis.2020.06.124

Abstract

Exploring advanced nanocatalysts are of importance for hydrogen evolution reaction (HER) in alkaline electrolyte (e.g. 1.0 M KOH). Herein, porous iridium-palladium-plumbum wire-like nanonetworks (IrPdPb WNNs) were prepared by a facile one-pot aqueous method with octylphenoxypolyethoxyethanol (NP-40) as the structure-director. The resultant IrPdPb WNNs exhibited superior HER performance in the alkaline electrolyte, such as ultra-low overpotential (21 mV) to drive a current density of 10 mA cm^-2, small Tafel slope (66 mV dec^-1), and high exchange current density (4.87 mA cm^-2), surpassing commercial Pt/C. This study provides a simple strategy for synthesis of advanced multi-metallic electrocatalysts in energy storage and conversion.

Keywords: Electrocatalysts; Hydrogen evolution reaction; Multi-metallic nanocrystals; Octylphenoxypolyethoxyethanol; Wire-like nanonetworks.