title: Preparation and electrocatalytic properties of Pt-SiO2 nanocatalysts for ethanol electrooxidation.
abstract: Due to their high stability in general acidic solutions, SiO(2) nanoparticles were selected as the second catalyst for ethanol oxidation in sulfuric acid aqueous solution. Pt-SiO(2) nanocatalysts were prepared in this paper. The micrography and elemental composition of Pt-SiO(2) nanoparticles were characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. The electrocatalytic properties of Pt-SiO(2) nanocatalysts for ethanol oxidation were investigated by cyclic voltammetry. Under the same Pt loading mass and experimental conditions for ethanol oxidation, Pt-SiO(2) nanocatalysts show higher activity than PtRu/C (E-Tek), Pt/C (E-Tek), and Pt catalysts. Additionally, Pt-SiO(2) nanocatalysts possess good anti-poisoning ability. The results indicate that Pt-SiO(2) nanocatalysts may have good potential applications in direct ethanol fuel cells.
authors.affiliation: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
authors.forename: B
authors.initials: B
authors.lastname: Liu
authors.forename: J H
authors.initials: JH
authors.lastname: Chen
authors.forename: X X
authors.initials: XX
authors.lastname: Zhong
authors.forename: K Z
authors.initials: KZ
authors.lastname: Cui
authors.forename: H H
authors.initials: HH
authors.lastname: Zhou
authors.forename: Y F
authors.initials: YF
authors.lastname: Kuang