Investigation of PdSn nanometals alloy supported on spherical TiO2 for methanol electro-oxidation
Investigation of PdSn nanometals alloy supported on spherical TiO2 for methanol electro-oxidation
复制标题
球形TiO2负载PdSn纳米金属合金用于甲醇电氧化的研究
DOI：
10.1016/j.powtec.2013.03.012
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发表时间：
2013-06-01
影响因子：
5.2
通讯作者：
Wu, Donghui
中科院分区：
文献类型：
--
作者：
Ju, Jianfeng;Chen, Xi;Wu, Donghui
以球形TiO 2纳米粒子为载体，采用表面还原沉积法制备了一种新型的甲醇氧化PdSn/TiO 2电催化剂。采用X射线衍射、透射电镜和电化学分析等手段对PdSn/TiO 2催化剂的结构和电化学性能进行表征。在合适的组成和PdSn合金纳米粒子在TiO 2表面的均匀分散下，该催化剂对甲醇氧化反应（莫尔）表现出良好的电催化活性和抗中毒能力。PdSn/TiO 2催化剂的莫尔还原机理主要是由于复合TiO 2材料在无紫外光照射的情况下具有较高的催化活性。PdSn/TiO 2催化剂有望成为直接甲醇燃料电池的一种新的催化剂。(C)2013爱思唯尔有限公司版权所有。
A novel PdSn/TiO2 electrocatalyst for methanol oxidation is fabricated by the surface reductive deposition method using spherical TiO2 nanoparticles as support. The structural and electrochemical properties of the PdSn/TiO2 catalysts are characterized by X-ray diffraction, transmission electron microscopy and electrochemical analysis. Under appropriate composition and uniform dispersion of PdSn alloy nanoparticles on the surface of the TiO2, the new catalyst has shown promising electrocatalytic activity for methanol oxidation reaction (MOR) and anti-poisoning ability. The MOR mechanism of the PdSn/TiO2 catalyst mainly results from the photocatalytic process of composite TiO2 material that has high catalytic activity without ultraviolet light illumination. The PdSn/TiO2 catalyst might become a promising candidate for direct methanol fuel cell. (C) 2013 Elsevier B.V. All rights reserved.