分析化学2011，Vol.39Issue(7)：994-997,4.DOI:10.3724/SP.J.1096.2011.00994
大面积铂-硅纳米线阵列的制备及其在增强甲醇电催化氧化中的应用
Fabrication of Large-Area Platinum-Coated Silicon Nanowire Arrays and Its Application to Enhanced Electrocatalytic Activity for Methanol Oxidation
摘要
Abstract
An effective route was developed for the fabrication of platinum-coated silicon nanowire arrays(Pt/SiNWAs) at room temperature. By judiciously combining the seed-growth method and the electroless deposition technique, high-quality three-dimensiona1(3D) Pt nanostructures were created on the surface of large-area SiNWAs. Scan electron microscopy, X-ray diffraction, and electrochemical techniques were used to characterize the Pt/SiNWAs. Experimental results suggested that the proposed Pt film exhibited unique 3D structure, thus leading to higher electrochemical active surface area(about 6. 17 times than that of Si wafer). Importantly, the as-prepared Pt/SiNWAs exhibited excellent electrocatalytic activity toward methanol oxidation in comparison with the Si wafer-supported Pt nanoparticle film and could be used as a promising nanoelectrocatalyst.关键词
多孔铂膜/硅纳米线阵列/甲醇氧化Key words
Porous platinum film / Silicon nanowire arravs / Methanol oxidation引用本文复制引用
曹林园,张宝华,逯乐慧..大面积铂-硅纳米线阵列的制备及其在增强甲醇电催化氧化中的应用[J].分析化学,2011,39(7):994-997,4.基金项目
本文系973项目(No.2010CB933600),中国科学院"百人计划"项目和国家自然科学基金(No.20873138)资助 （No.2010CB933600）
