【作者】 赵文高； 周喜斌； 陈晶； 仵博万； 薛中华； 张学凤； 卢小泉；

【Author】 Wengao Zhao;Xibin zhou;Jing Chen;Bowan Wu;Zhonghua Xue;Xuefeng Zhang;Xiaoquan Lu;Key Laboratory of Bioelectrochemistry & Environment Analysis of Gansu Province,College of Chemistry and Chemical Engineering, Northwest Normal University;

【机构】 西北师范大学化学化工学院甘肃省生物电化学与环境分析重点实验室；

【摘要】 <正>本文中用一种简单、有效的电化学方法制备了石墨烯/聚吡咯复合物,再在这种聚合物表面电沉积大约10nm的高度分散的Pt纳米粒子,从而构建石墨烯/聚吡咯/Pt催化剂,并将其用于甲醇的催化。作为比较,同样的电化学方法制备了聚吡咯/Pt和石墨烯/Pt催化剂,在相同的实验条件下用于对甲醇的催化。实验更多还原

【Abstract】 A facile and effective method to prepare a catalyst support materials, the composites were constructed by graphene nanosheets(GNS) and Polypyrrole(PPy) particles. Plantinum nanoparticles(Pt NPs) were well-dispersed on the surface of the nanocomposites by electrodeposition. The GNS-PPy/Pt NPs catalyst was employed for methanol oxidation reaction.. For comparation, GNS/Pt NPs and PPy/Pt NPs were employed at the same condition. GNS-PPy/Pt NPs has higher current density and mass activity, and more strong poison-tolerance, demonstrated its catalyst activity was better than GNS/Pt NPs and PPy/Pt NPs catalysts, which were attributed to high dispersion of Pt NPs in large surface area of GNS-PPy composites and synergic effect among the GNS, PPy particles and Pt NPs. The results were implied that the nanocomposites of GNS-PPy support Pt-based catalyst is promising catalyst material for methanol oxidation reactions(MORs).更多还原