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首页> 外文期刊>Electrocatalysis >Microwave-Irradiation Polyol Synthesis of PVP-Protected Pt-Ni Electrocatalysts for Methanol Oxidation Reaction
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Microwave-Irradiation Polyol Synthesis of PVP-Protected Pt-Ni Electrocatalysts for Methanol Oxidation Reaction

机译：微波辐射多元醇合成PVP保护的Pt-Ni电催化剂，用于甲醇氧化反应

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摘要

Bimetallic Pt-Ni nanoparticles were synthesized for use as electrocatalysts for the methanol oxidation reaction using a cost-effective microwave-irradiation synthesis procedure that offers precise temperature control. By varying the concentration of Ni in the Pt matrix, it was demonstrated that the electrocatalytic activity of the particles declined as the Ni content was increased, with a 50:50 Pt:Ni mixture giving the best performance. This in turn showed that the Pt electrocatalytically active surface area was affected by the incorporation of Ni atoms into the Pt lattice. No further calcination of the microwaved catalysts was required resulting in the synthesis of novel and highly active catalysts, which possessed higher activity than some commercially available Pt catalysts. The catalysts also exhibited good CO resistance and long-term stability behavior.
机译：合成双金属Pt-Ni纳米颗粒，用作使用经济高效的微波辐射合成程序的甲醇氧化反应的电催化剂，该方法提供精确的温度控制。 通过改变Pt基质中Ni的浓度，证明颗粒的电催化活性随着Ni含量增加而下降，50:50 pt：Ni混合物提供最佳性能。 这反过来表明，PT电催化活性表面积受Ni原子掺入Pt晶格的影响。 不需要进一步煅烧微波催化剂，导致新型和高活性催化剂的合成，其具有比一些商业上可获得的Pt催化剂更高的活性。 催化剂还表现出良好的Co抵抗和长期稳定性行为。

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