Noble-metal-free Co@Co2P/N-doped carbon nanotube polyhedron as an efficient catalyst for hydrogen generation from ammonia borane |
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| Authors: | Cong Wang Zhili Wang Hongli Wang Yue Chi Minggang Wang Daowen Cheng Jingjing Zhang Chen Wu Zhankui Zhao |
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| Affiliation: | 1. College of Material Science and Engineering, Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology, Changchun, 130012, China;2. Key Laboratory of Automobile Materials Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun, 130022, China |
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| Abstract: | Developing an efficient catalyst for hydrogen (H2) generation from hydrolysis of ammonia borane (AB) to significantly improve the activity for the hydrogen generation from AB is important for its practical application. Herein, we report a novel hybrid nanostructure composed of uniformly dispersed Co@Co2P core-shell nanoparticles (NPs) embedded in N-doped carbon nanotube polyhedron (Co@Co2P/N–CNP) through a carbonization-phosphidation strategy derived from ZIF-67. Benefiting from the electronic effect of P doping, high dispersibility and strong interfacial interaction between Co@Co2P and N-CNTs, the Co@Co2P/N–CNP catalyst exhibits excellent catalytic performance towards the hydrolysis of AB for hydrogen generation, affording a high TOF value of 18.4 mol H2 mol metal?1 min?1 at the first cycle. This work provides a promising lead for the design of efficient heterogeneous catalysts towards convenient H2 generation from hydrogen-rich substrates in the close future. |
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| Keywords: | Transition metal phosphides Hydrogen generation Ammonia borane |
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