Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 43, Issue 31, Pages 14293-14300Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.05.158
Keywords
PtCu; Nanoparticles; Ammonia borane; Dehydrogenation; Hydrolysis
Categories
Funding
- National Natural Science Foundation of China [51571072]
- Fundamental Research Funds for the Central Universities [AUGA5710012715]
- China Postdoctoral Science Foundation [2015M81436]
- Heilongjiang Postdoctoral Science Foundation [LBH-Z15065]
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Pt-M alloy nanoparticles (NPs) with well-defined size and compositions exhibit dramatically catalytic performance in chemical reactions. In this work, monodisperse PtCu NPs with controlled size and compositions were synthesized by the co-reduction method in the presence of oleylamine. These NPs have excellent catalytic activities in the hydrolytic dehydrogenation of ammonia borane (AB) and their activities were composition dependent. Among the different-composition PtCu NPs, the CusoPtso NPs exhibit the highest catalytic activity with an initial turnover frequency of 102.5 mol((hydrogen)) . mol((catalyst))(-1) . min(-1) and an apparent activation energy of 36 kJ.mol(-1), which demonstrate the validity of partly replacing Pt by a first-row transition metal on constructing high performance heterogeneous nanocatalysts for the hydrolytic dehydrogenation of AB. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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