Single atoms (Pt, Ir and Rh) anchored on activated NiCo LDH for alkaline hydrogen evolution reaction

Binbin Fan; Haozhi Wang; Xiaopeng Han; Yida Deng; Wenbin Hu

doi:10.1039/d2cc02732a

Single atoms (Pt, Ir and Rh) anchored on activated NiCo LDH for alkaline hydrogen evolution reaction

Chem Commun (Camb). 2022 Jul 21;58(59):8254-8257. doi: 10.1039/d2cc02732a.

Authors

Binbin Fan¹, Haozhi Wang¹, Xiaopeng Han², Yida Deng^{2

3}, Wenbin Hu^{1

2}

Affiliations

¹ Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207, China.
² School of Materials Science and Engineering Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300072, China. xphan@tju.edu.cn.
³ School of Materials Science and Engineering, Hainan University, Haikou 570100, China.

PMID: 35788581
DOI: 10.1039/d2cc02732a

Abstract

Here, we report the synthesis of activated NiCo LDH to immobilize Pt, Ir and Rh single atoms for hydrogen evolution reaction. The Pt/A-NiCo LDH electrocatalyst exhibits the highest catalytic ability with a low overpotential of 16 mV to achieve a current density of 10 mA cm^-2 and a mass activity about 24.8-fold that of commercial Pt/C. The results suggest that the Pt single atom catalyst can not only accelerate the Volmer steps in alkaline media, but also optimize the hydrogen adsorption process, improving the HER catalytic activity.