The Pt‐Sn/CNDs electrocatalyst was synthesized by the alcohol reduction method with the aim to reduce platinum loading and improve electroactivity. XPS results showed that the nanoparticles were present in the form of Pt‐Sn metallic alloy with a significant amount of SnO‐ species which facilitate the rapid oxidation of CO intermediates. The lattice parameter of Pt in Pt‐Sn/CNDs electrocatalyst was calculated to be 0.3926 nm; this value is higher than 0.3921 nm, the lattice parameter of Pt in Pt/CNDs electrocatalyst. XRD results proved that incorporating tin (Sn) into the Pt/CNDs electrocatalyst modifies the face centred cubic shape of platinum to a crystalline structure which improves the alcohol electro‐oxidation reactions. The electrochemical tests proved that the Pt‐Sn/CNDs electrocatalyst exhibited high current densities and lower poisoning rates compared to the Pt/CNDs and Pt/C electrocatalysts. The Pt‐Sn/CNDs electrocatalyst showed the greatest electroactivity for both methanol and ethanol electro‐oxidation reactions.

中文翻译：

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碳纳米点上负载的Pt-Sn纳米颗粒作为酸性条件下酒精电氧化的阳极催化剂

Pt-Sn / CNDs电催化剂是通过醇还原法合成的，目的是减少铂负载量并提高电活性。XPS结果表明，纳米粒子以Pt-Sn金属合金的形式存在，具有大量的SnO-物种，有助于CO中间体的快速氧化。计算得出Pt-Sn / CNDs电催化剂中Pt的晶格参数为0.3926 nm; 该值高于Pt / CNDs电催化剂中Pt的晶格参数0.3921 nm。XRD结果证明，在Pt / CNDs电催化剂中掺入锡（Sn）可以将铂的面心立方形状修改为晶体结构，从而改善了醇的电氧化反应。电化学测试证明，与Pt / CNDs和Pt / C电催化剂相比，Pt-Sn / CNDs电催化剂表现出高电流密度和较低的中毒率。Pt-Sn / CNDs电催化剂对甲醇和乙醇的电氧化反应均显示出最大的电活性。