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首页> 外文期刊>International Journal of Electrochemistry >Synthesis and Electrocatalytical Application of Hybrid Pd/Metal Oxides/MWCNTs
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Synthesis and Electrocatalytical Application of Hybrid Pd/Metal Oxides/MWCNTs

机译：钯/金属氧化物/多壁碳纳米管杂化材料的合成及电催化应用

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The performance of Pd electrocatalysts for formic acid electrooxidation was improved by application of metal oxide-multiwall carbon nanotubes composites as a catalyst support. Hybrid oxides/MWCNTs were synthesized by two different methods chemical reduction method and impregnation method. Pd based catalysts were synthesized by polyol method on the MWCNTs or oxide/MWCNTs composites. The In2O3 was deposited on MWCNTs by impregnation method (In2O3/MWCNTs-IM support) and in the presence of NaBH4 (In2O3/MWCNTs-NaBH4 support). The physical properties of the Pd/In2O3/MWCNTs-IM, Pd/In2O3/MWCNTs-NaBH4, Pd/SnO2/MWCNTs, and Pd/MWCNTs catalysts were characterized and their electrocatalytical performance in formic acid oxidation was compared. During Pd deposition on In2O3/MWCNTs-NaBH4 support, InPd2 structure was formed as observed by XRD. The electrochemical tests indicate that the two Pd/ In2O3/MWCNTs electrocatalysts have higher electrocatalytic activity than those of Pd/SnO2/MWCNTs and Pd/MWCNTs. The best performance was observed for the catalyst obtained by In2O3 impregnation of MWCNTs denoted by Pd/In2O3/MWCNTs-IM.
机译：通过使用金属氧化物-多壁碳纳米管复合材料作为催化剂载体，改进了Pd电催化剂对甲酸的电氧化性能。采用化学还原法和浸渍法两种不同的方法合成了杂化氧化物/ MWCNTs。通过多元醇法在MWCNTs或氧化物/ MWCNTs复合材料上合成了Pd基催化剂。 In2O3通过浸渍法（In2O3 / MWCNTs-IM载体）并在NaBH4存在下（In2O3 / MWCNTs-NaBH4载体）沉积在MWCNT上。表征了Pd / In2O3 / MWCNTs-IM，Pd / In2O3 / MWCNTs-NaBH4，Pd / SnO2 / MWCNTs和Pd / MWCNTs催化剂的物理性质，并比较了它们在甲酸氧化中的电催化性能。通过XRD观察，在In2O3 / MWCNTs-NaBH4载体上的Pd沉积过程中，形成了InPd2结构。电化学测试表明，两种Pd / In2O3 / MWCNTs电催化剂均具有比Pd / SnO2 / MWCNTs和Pd / MWCNTs高的电催化活性。对于用Pd / In2O3 / MWCNTs-IM表示的MWCNT的In2O3浸渍获得的催化剂观察到最佳性能。

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