Enhancement of NiTiO3 piezocatalytic hydrogen evolution by doping with large radius elements
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Updated: Jun 28, 2025
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Kongming Li1, Bonan Li1, Xi Zhang1
1State 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.
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.
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