以碳纳米管（CN T ）和石墨烯（GNS ）混合材料作为载体，采用微波还原法将 PtRu纳米粒子负载到混合载体表面，制备了 PtRu／CN T‐GNS 纳米催化剂。透射电镜（T EM ）结果显示，PtRu纳米粒子均匀地分散在混合载体表面，粒径分布范围较窄，平均粒径约为21．7 nm。电化学测试结果表明，与单一碳载体负载的催化剂 PtRu／CN T 相比，PtRu／CN T‐GNS 呈现出更高的甲醇氧化活性和更好的抗中毒能力。
Carbon nanotubes (CNT) and graphene (GNS) had been mixed as a new support ,PtRu/CNT‐GNS catalysts was prepared by reduction method .PtRu nanoparticles were loaded to the mixed support surface by microwave .The structure and morphology of the samples were characterized by transmission electron microsco‐py (TEM) ,PtRu nanoparticles dispersed on the surface of the mixed support uniformly ,it had a narrow parti‐cle size distribution ,the average particle size is about 2 .17 nm .The activity and stability of PtRu/CNT‐GNS catalysts for methanol electro oxidation were tested by electrochemical method .The results indicated that the PtRu/CNT‐GNS catalysts showed higher methanol oxidation activity and better ability of anti poisoning than PtRu/CNT ,PtRu/GNS catalysts supported by single carbon .
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