%0 Journal Article
%T Preparation and Characterization of Zirconia-Coated Nanodiamonds as a Pt Catalyst Support for Methanol Electro-Oxidation
%A Jianbing Zang
%A Jing Lu
%A Xipeng Xu
%A Yanhui Wang
%A Yongchao Xu
%J Archive of "Nanomaterials".
%D 2016
%R 10.3390/nano6120234
%X Zirconia-coated nanodiamond (ZrO2/ND) electrode material was successfully prepared by one-step isothermal hydrolyzing from ND-dispersed ZrOCl2ˇ¤8H2O aqueous solution. High-resolution transmission electron microscopy reveals that a highly conformal and uniform ZrO2 shell was deposited on NDs by this simple method. The coating obtained at 90 ˇăC without further calcination was mainly composed of monoclinic nanocrystalline ZrO2 rather than common amorphous Zr(OH)4 clusters. The ZrO2/NDs and pristine ND powder were decorated with platinum (Pt) nanoparticles by electrodeposition from 5 mM chloroplatinic acid solution. The electrochemical studies indicate that Pt/ZrO2/ND catalysts have higher electrocatalytic activity and better stability for methanol oxidation than Pt/ND catalysts in acid
%K nanodiamond
%K ZrO2 shell
%K deposition
%K Pt nanoparticles
%K oxidation
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302723/