Simple approach to synthesis Pt/NiO flower microspheres and their electrocatalytic properties

A kind of novel Pt/NiO flower microsphere structure has been successfully fabricated through a two step chemical process. Firstly NiO flower microspheres could be prepared by a hydrothermal method with the assistance of biomolecule (L-glutamic acid). Secondly the Pt/NiO microsphere composition could be synthesized by the reduction of H2PtCl6 Solution by use of glucose, and the as-deposited Pt nanoparticles with less than 40 nm in size were embedded into the gaps of the adjacent petals. The sample was characterized by XRD, SEM, TEM, EDS et al. This new kind of structure shows excellent electrocatalytic properties compared which might provide an efficient way to improve the electrocatalytic property of with that of Pt nanoparticles, which might provide an efficient way to improve the electrocatalytic property of nanomaterials and other applications. (C) 2008 Elsevier B.V. All rights reserved.