Ultradispersed Ir Ni Clusters As Bifunctional Electrocatalysts for High-efficiency Water Splitting in Acid Electrolytes

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 May 2

PMID 35497523

Authors

Xiaojie Zhao

Ying Chang

Jiang Ji

Jingchun Jia

Meilin Jia

Affiliations

Soon will be listed here.

Abstract

Design and synthesis of electrocatalysts with high activity and low cost is an important challenge for water splitting. We report a rapid and facile synthetic route to obtain Ir Ni clusters polyol reduction. The Ir Ni clusters show excellent activity for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in acidic electrolytes. The optimized IrNi/C clusters exhibit an electrochemical active area of 18.27 mF cm, with the overpotential of OER being 292 mV and HER being 30 mV at 10 mA cm, respectively. In addition, the IrNi/C used as the cathode and anode for the H-type hydrolysis tank only needs 1.597 V cell voltages. The excellent electrocatalytic performance is mainly attributed to the synergistic effect between the metals and the ultra-fine particle size. This study provides a novel strategy that has a broad application for water splitting.

Citing Articles

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