Carbon-supported PdSn nanoparticles as catalysts for formic acid oxidation
Carbon-supported PdSn nanoparticles as catalysts for formic acid oxidation
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DOI：
10.1016/j.elecom.2009.06.023
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发表时间：
2009-08
影响因子：
5.4
通讯作者：
Zhaolin Liu;Xinhui Zhang
中科院分区：
文献类型：
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作者：
Zhaolin Liu;Xinhui Zhang
Vulcan XC-72 碳负载的 Pd 和 PdSn 纳米粒子通过微波辅助多元醇工艺制备。通过透射电子显微镜 (TEM)、X 射线衍射 (XRD)、线性扫描伏安法和计时电流法对催化剂进行表征。结果表明，Pd和PdSn纳米粒子均匀分散在碳上，直径为2-10nm。所有 Pd/C 和 PdSn/C 催化剂均显示 Pd 面心立方 (fcc) 晶体结构的特征衍射峰。研究发现，在Pd中添加Sn可以提高Pd(fcc)晶体的晶格参数。 PdSn/C 催化剂比对比 Pd/C 催化剂具有更高的甲酸氧化电催化活性，并且作为 DFAFC 中甲酸电氧化的较便宜的电催化剂显示出巨大的潜力。
Pd and PdSn nanoparticles supported on Vulcan XC-72 carbon are prepared by a microwave-assisted polyol process. The catalysts are characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), linear sweeping voltammetry, and chronoamperometry. The results show that the Pd and PdSn nanoparticles, which are uniformly dispersed on carbon, are 2–10nm in diameters. All Pd/C and PdSn/C catalysts display the characteristic diffraction peaks of a Pd face-centered cubic (fcc) crystal structure. It is found that the addition of Sn to Pd can increase the lattice parameter of Pd (fcc) crystal. The PdSn/C catalysts have higher electrocatalytic activity for formic acid oxidation than a comparative Pd/C catalyst and show great potential as less expensive electrocatalyst for formic acid electrooxidation in DFAFCs.