Enhancement of NiTiO3 piezocatalytic hydrogen evolution by doping with large radius elements

Kongming Li; Bonan Li; Xi Zhang; Junhao Wu; Mengxue Chen; Pengfei Feng; Xu Yang; Meiyu Zhang; Yong Ding

doi:10.1039/d4cc00889h

Enhancement of NiTiO₃ piezocatalytic hydrogen evolution by doping with large radius elements

Chem Commun (Camb). 2024 Apr 30;60(36):4801-4804. doi: 10.1039/d4cc00889h.

Authors

Kongming Li¹, Bonan Li¹, Xi Zhang¹, Junhao Wu¹, Mengxue Chen¹, Pengfei Feng¹, Xu Yang¹, Meiyu Zhang², Yong Ding^{1

3}

Affiliations

¹ State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, China. dingyong1@lzu.edu.cn.
² Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry & Chemical Engineering, Liaocheng University, Liaocheng 252059, Shandong, China. zhangmeiyu@lcu.edu.cn.
³ State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization; State Key Laboratory for Oxo Synthesis and Selective Oxidation, China.

PMID: 38602367
DOI: 10.1039/d4cc00889h

Abstract

Piezocatalysis is a direct method for converting mechanical vibration into chemical energy. Herein, NiTiO₃ is used in the piezocatalytic hydrogen evolution field for the first time. The noncentral symmetry of NiTiO₃ is enhanced by doping with large radius elements. It is demonstrated that when a metal element replaces the sites of nickel, it results in lattice distortion and a higher piezoelectric response. In particular, Cd-doped NiTiO₃ exhibits the highest H₂ generation rate (1.52 mmol g^-1 h^-1), which is 13 times that of original NiTiO₃.