Construction of cost-effective bimetallic nanoparticles on titanium carbides as a superb catalyst for promoting hydrolysis of ammonia borane

Zhangwei Guo; Tong Liu; Qingtao Wang; Guanhui Gao

doi:10.1039/c7ra10568a

Construction of cost-effective bimetallic nanoparticles on titanium carbides as a superb catalyst for promoting hydrolysis of ammonia borane

RSC Adv. 2018 Jan 3;8(2):843-847. doi: 10.1039/c7ra10568a. eCollection 2018 Jan 2.

Authors

Zhangwei Guo¹, Tong Liu², Qingtao Wang², Guanhui Gao³

Affiliations

¹ College of Ocean Science and Engineering, Shanghai Maritime University Haigang Ave 1550 201306 Shanghai China.
² College of Materials Science and Engineering, Qingdao University of Science and Technology Zhengzhou Rd 53 266000 Qingdao China liutong@qust.edu.cn.
³ Paul-Drude-Institut für Festkörperelektronik Hausvogteiplatz 5-7 10117 Berlin Germany gao@pdi-berlin.de.

Abstract

Bimetallic cost-effective CoNi nanoparticles (NPs) are conveniently supported on titanium carbides (MXene) by a simple one-step wet-chemical method. The synthesized CoNi/MXene catalysts are characterized by XPS, TEM, STEM-HAADF and ICP-AES. The as-prepared CoNi NPs with a size of 2.8 nm are well dispersed on the MXene surface. It is found that among the CoNi bimetallic system, Co_0.7Ni_0.3 shows the best performance toward catalyzing ammonia borane (AB) decomposition with a turnover frequency value of 87.6 mol_H₂ mol_cat ^-1 min^-1 at 50 °C. The remarkable catalytic performance is attributed to the mild affiliation of MXene to NPs, which not only stabilizes NPs to maintain a good dispersion but also leaves sufficient surface active sites to facilitate the catalytic reaction.