title: Controlled Synthesis of Pt Nanowires with Ordered Large Mesopores for Methanol Oxidation Reaction.
abstract: Catalysts for methanol oxidation reaction (MOR) are at the heart of key green-energy fuel cell technology. Nanostructured Pt materials are the most popular and effective catalysts for MOR. Controlling the morphology and structure of Pt nanomaterials can provide opportunities to greatly increase their activity and stability. Ordered nanoporous Pt nanowires with controlled large mesopores (15, 30 and 45 nm) are facilely fabricated by chemical reduction deposition from dual templates using porous anodic aluminum oxide (AAO) membranes with silica nanospheres self-assembled in the channels. The prepared mesoporous Pt nanowires are highly active and stable electrocatalysts for MOR. The mesoporous Pt nanowires with 15 nm mesopores exhibit a large electrochemically active surface area (ECSA, 40.5 m(2) g(-1)), a high mass activity (398 mA mg(-1)) and specific activity (0.98 mA cm(-2)), and a good If/Ib ratio (1.15), better than the other mesoporous Pt nanowires and the commercial Pt black catalyst.
authors.affiliation: State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.|Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, China.
authors.forename: Chengwei
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Lianbin
authors.initials: L
authors.lastname: Xu
authors.affiliation: Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: Yushan
authors.initials: Y
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Chen