A novel tri-component hybrid, Pt/pyridine ionic liquid polyoxometalate/reduced graphene oxide denoted as Pt/(epy)₃PMo₁₂O₄₀/rGO with well-dispersed, smaller size Pt nanoparticles on rGO is successfully synthesized. The morphology, structure, composition and electrochemical property are characterized by high resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, energy dispersive spectrometer, Raman spectra, thermogravimetric analysis and cyclic voltammetry, respectively. Ionic liquid polyoxometalate (epy)₃PMo₁₂O₄₀ availably prevents the aggregations of Pt nanoparticles on the rGO surface, furthermore, effectively improves anti CO poisoning performance and enhances the conductivity of the material. The mass activity of as-prepared Pt/(epy)₃PMo₁₂O₄₀/rGO catalyst for methanol oxidation is about 10 times of 20% commercial platinum carbon, 7 times of Pt/rGO, 4 times of Pt/epyBr/rGO, and 2 times of Pt/H₃PMo₁₂O₄₀/rGO. This further demonstrates that the ionic liquid polyoxometalate (epy)₃PMo₁₂O₄₀ play a very important role in enhancing the eletrocatalytic activity of the tri-component hybrid composite catalyst.

成功地合成了新颖的三组分杂化Pt /吡啶离子液体多金属氧酸盐/还原石墨烯氧化物，表示为Pt /（epy）₃ PMo ₁₂ O ₄₀ / rGO，在rGO上具有分散良好的较小尺寸的Pt纳米粒子。分别通过高分辨率透射电子显微镜，X射线衍射，X射线光电子能谱，能量分散能谱仪，拉曼光谱，热重分析和循环伏安法表征其形态，结构，组成和电化学性能。离子液体多金属氧酸盐（epy）₃ PMo ₁₂ O ₄₀可以有效地防止rt表面上Pt纳米颗粒的聚集，此外，可以有效地提高抗CO中毒性能并提高材料的电导率。制备的Pt /（epy）₃ PMo ₁₂ O ₄₀ / rGO催化剂对甲醇氧化的质量活性约为20％商业铂碳的10倍，Pt / rGO的7倍，Pt / epyBr / rGO的4倍，和2倍的Pt / H ₃ PMo ₁₂ O ₄₀ / rGO。这进一步证明，离子液体多金属氧酸盐（epy）₃ PMo ₁₂ O ₄₀在增强三组分杂化复合催化剂的电催化活性方面起着非常重要的作用。