A novel approach to high loaded Pt core/carbon shell catalyst synthesis from a Pt‐aniline complex was reported. The Pt‐aniline complex was successfully synthesized by irradiating an ultrasound to the hexachloro platinic acid and aniline monomer mixture. The highly viscous nature of aniline leads to reproducible hexagonal plate like Pt‐aniline complex crystals. The chemical composition of the Pt‐aniline complex was identified as [PtCl₂(C₆H₅NH₂)₂] with the help of NMR, XPS, HR ESI‐MS, and TGA analyses. Furthermore, the Pt‐aniline hexagonal plates were sintered at various temperatures like 400 °C, 500 °C, and 700 °C for an hour. This formed the highly dispersed carbon covered Pt nano particles with loading of 80.1 wt %, 81.3 wt %, and 83.4 wt % for HP‐4, HP‐5, and HP‐7, respectively. After supporting it on Vulcan XC‐72, Pt core/carbon shell pyrolyzed at a low temperature showed excellent performance in methanol oxidation reaction. In addition, Pt core/carbon shell prepared at a high temperature revealed excellent tolerance to methanol.

中文翻译：

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铂-苯胺络合物衍生的高负载铂芯/碳壳，可直接用于甲醇燃料电池

报道了一种由Pt-苯胺络合物合成高负荷Pt核/碳壳催化剂的新方法。通过对六氯铂酸和苯胺单体混合物进行超声波照射，成功合成了Pt-苯胺络合物。苯胺的高粘性性质导致可重现的六方板像Pt-苯胺络合物晶体。Pt-苯胺络合物的化学成分被确定为[PtCl ₂（C ₆ H ₅ NH ₂）₂]借助NMR，XPS，HR ESI-MS和TGA分析。此外，Pt-苯胺六角形板在各种温度（例如400°C，500°C和700°C）下烧结一个小时。这形成了高度分散的碳覆盖的Pt纳米颗粒，其对HP-4，HP-5和HP-7的负载分别为80.1 wt％，81.3 wt％和83.4 wt％。将其支撑在Vulcan XC-72上后，在低温下热解的Pt核/碳壳在甲醇氧化反应中显示出优异的性能。另外，在高温下制备的Pt核/碳壳显示出对甲醇的优异耐受性。