Ultrasound assisted synthesis of highly active nanoflower-like CoMoS4 electrocatalyst for oxygen and hydrogen evolution reactions

Ultrasonics Sonochemistry

Y.M. Hunge¹  A.A. Yadav²  Seok-Won Kang³ 

[1] Corresponding authors.;Department of Automotive Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea;Photocatalysis International Research Center, Tokyo University of Science, Yazamaki, Noda 278-8510, Chiba, Japan;

关键词: CoMoS4;    Hydrogen evolution;    Oxygen evolution;    Overall water splitting;   

DOI  :  

来源: DOAJ

【 摘 要 】

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 CoMoS4 electrocatalyst. A symmetric electrolyzer cell was fabricated using a CoMoS4 electrode as both the anode and cathode, with a cell voltage of 1.51 V, to obtain a current density of 10 mA/cm2. Low overpotentials were observed for the CoMoS4 electrode (250 mV for OER and 141 mV for HER) at a current density of 10 mA/cm2.

【 授权许可】

Unknown