Ultrasound Assisted Synthesis of Highly Active Nanoflower-like CoMoS Electrocatalyst for Oxygen and Hydrogen Evolution Reactions

Overview

Journal Ultrason Sonochem

Specialty Radiology

Date 2021 Jan 17

PMID 33454452

Citations 4

Authors

A A Yadav

Y M Hunge

Seok-Won Kang

Affiliations

Soon will be listed here.

Abstract

Rapid technological development requires sustainable, pure, and clean energy systems, such as hydrogen energy. It is difficult to fabricate efficient, highly active, and inexpensive electrocatalysts for the overall water splitting reaction: the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The present research work deals with a simple hydrothermal synthesis route assisted with ultrasound that was used to fabricate a 3D nanoflower-like porous CoMoS electrocatalyst. A symmetric electrolyzer cell was fabricated using a CoMoS electrode as both the anode and cathode, with a cell voltage of 1.51 V, to obtain a current density of 10 mA/cm. Low overpotentials were observed for the CoMoS electrode (250 mV for OER and 141 mV for HER) at a current density of 10 mA/cm.

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