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首页> 外文期刊>International Journal of Electrochemical Science >The Properties of PdRu /C with respect to the Electro-oxidation of Methanol and Ethanol
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The Properties of PdRu /C with respect to the Electro-oxidation of Methanol and Ethanol

机译：PdRu / C相对于甲醇和乙醇电氧化的性质

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An activated carbon supported PdRu bimetallic nanocatalyst (PdRu/C) was prepared by microwaveheating reduction method. TEM results showed that, when Ru was added, the catalyst can get betterdispersion and smaller particle radius, the PdRu/C catalysts possess smaller mean grain size. XRD dataindicate that the Pd-Ru is supported on the activated carbon as an alloy. The catalytic property wasdetermined by analyzing the oxidation and reduction peaks of methanol and ethanol at different molarratios of PdRu. The PdRu/C catalyst exhibits a good CO-tolerence. In addition, all the catalysts revealedbetter electrocatalytic performance towards ethanol oxidation than methanol oxidation under alkalineconditions. The current intensity of the PdRu(1:1)/C catalysts for the ethanol electrooxidation reachedabout 991 mA mg-1 Pd; while the methanol was only 375 mA mg-1 Pd. Besides, the catalytic property ofthe PdRu(1:1)/C for the electrooxidation of alcohol was 1.1 times than the Pd/C catalyst synthesized inthe same way. The PdRu(1:1)/C has slightly higher current intensity than the Pd/C, and exhibits excellentdurability after a long time test to ethanol oxidation. It also has a very fast charge transfer rate as shownin EIS test.
机译：通过微波加热还原法制备了活性炭负载的PdRu双金属纳米催化剂（PdRu / C）。 TEM结果表明，加入Ru可以使分散性更好，粒径更小，PdRu / C催化剂的平均粒径较小。 XRD数据表明，Pd-Ru作为合金负载在活性炭上。通过分析甲醇和乙醇在PdRu的不同摩尔比下的氧化和还原峰来确定其催化性能。 PdRu / C催化剂表现出良好的CO耐受性。此外，在碱性条件下，所有催化剂对乙醇氧化的电催化性能均优于甲醇氧化。用于乙醇电氧化的PdRu（1：1）/ C催化剂的电流强度达到约991 mA mg-1 Pd。而甲醇仅为375 mA mg-1 Pd。此外，PdRu（1：1）/ C对醇电氧化的催化性能是相同方法合成的Pd / C催化剂的1.1倍。 PdRu（1：1）/ C具有比Pd / C稍高的电流强度，并且经过长时间的乙醇氧化测试后显示出优异的耐久性。如EIS测试所示，它还具有非常快的电荷传输速率。

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