Monodispersed Pt nanoparticles on reduced graphene oxide by a non-noble metal sacrificial approach for hydrolytic dehydrogenation of ammonia borane

Downsizing noble metal nanoparticles,such as Pt,is an essential goal for many catalytic reactions.A non-noble metal sacrificial approach was used to immobilize monodispersed Pt nanoparticles （NPs） with a mean size of 1.2 nm on reduced graphene oxide （RGO）.ZnO co-precipitated with Pt NPs and subseque...

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Bibliographic Details
Published in:Nano research 2017-11, Vol.10 (11), p.3811-3816
Main Authors: Chen, Yao, Yang, Xinchun, Kitta, Mitsunori, Xu, Qiang
Format: Article
Language:English
Subjects:
Ammonia
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Catalysis
Chemical synthesis
Chemistry and Materials Science
Cobalt
Condensed Matter Physics
Dehydrogenation
Diffusion
Downsizing
Etching
Graphene
Materials Science
Metals
Nanoparticles
Nanotechnology
Noble metals
Platinum
Research Article
Zinc oxide
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Summary:Downsizing noble metal nanoparticles,such as Pt,is an essential goal for many catalytic reactions.A non-noble metal sacrificial approach was used to immobilize monodispersed Pt nanoparticles （NPs） with a mean size of 1.2 nm on reduced graphene oxide （RGO）.ZnO co-precipitated with Pt NPs and subsequently sacrificed by acid etching impedes the diffusion of Pt atoms onto the primary Pt particles and also their aggregation during the reduction of precursors.The resulting ultrafine Pt nanoparticles exhibit high activity （a turnover frequency of 284 min-1 at 298 K） in the hydrolytic dehydrogenation of ammonia borane.The non-noble metal sacrificial approach is demonstrated as a general approach to synthesize well-dispersed noble metal NPs for catalysis.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-017-1593-4