Article Title

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

Authors

Yao Chen, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
Xinchun Yang, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
Mitsunori Kitta, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
Qiang Xu, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan

Keywords

catalysis, hydrogen generation, reduced graphene oxide, platinum, ammonia borane, non-noble metal sacrificial approach

Abstract

ABSTRACT 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.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-017-1593-4

Publisher

Tsinghua University Press

Recommended Citation

Yao Chen,Xinchun Yang,Mitsunori Kitta,Qiang Xu, Monodispersed Pt nanoparticles on reduced graphene oxide by a non-noble metal sacrificial approach for hydrolytic dehydrogenation of ammonia borane. NanoRes.2017, 10(11): 3811–3816