AUTHOR=Tang Siyuan , Zhang Zhipeng , Xiang Jun , Yang Xinchun , Shen Xiangqian , Song Fuzhan 

TITLE=Recent advances in transition metal nitrides for hydrogen electrocatalysis in alkaline media: From catalyst design to application

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2022.1073175

DOI=10.3389/fchem.2022.1073175

ISSN=2296-2646

ABSTRACT=With the increase of population as well as energy demand, hydrogen (H2) is considered as a clean candidate that can replace fossil fuel to meet future energy demand. Although platinum group metal (PGM) catalysts have excellent performance, their scarcity and high cost limit the industrial application. Therefore, it is necessary to develop low-cost and efficient non-PGM catalysts. Transition metal nitrides (TMNs) have attracted much attention because of their excellent hydrogen electrochemistry, including hydrogen evolution reaction (HER)/hydrogen oxidation reaction (HOR) performance. In this paper, we first review and discuss the mechanism of HER/HOR in alkaline media. Based on these understanding, we compare and evaluate electrocatalytic performance for the HER/HOR TMNs catalysts recently reported. Finally, we look forward to the sustainable and clean hydrogen energy devices and prospects and research trends.