【作者】 吴锋； 刘延红； 吴川；

【Author】 WU Feng~(1,2),LIU Yan-hong~1,WU Chuan~(1,2) (1.School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing 100081,China; 2.National Development Center for High Technology Green Materials,Beijing 100081,China)

【机构】 北京理工大学化工与环境学院； 国家高技术绿色材料发展中心；

【摘要】 以仲钨酸铵(N₅H₃₇W₆O₂₄·H₂O)为钨前驱体,氯铂酸（H₂PtCl₆·6H₂O）为铂前驱体,通过乙二醇（EG）法制备了Pt-WO₃/C催化剂。采用X射线衍射光谱（XPS）对催化剂进行了表征,采用线性扫描（LSV）研究了钨前驱体添加量对催化剂活性的影响。结果表明:催化剂中钨含量远远小于钨前驱体添加量;钨前驱体添加量对催化剂活性有较大影响;当N₅H₃₇W₆O₂₄·H₂O/H₂PtCl₆·6H₂O为3/8时,催化剂活性最好,是Pt/C催化剂的1.6倍。更多还原

【Abstract】 Pt-WO₃/C catalysts were prepared by EG method using N₅H₃₇W₆O₂₄·H₂O and H₂PtCl₆·6H₂O as the tungsten and platinum precursors,respectively.The catalysts were characterized by XPS and LSV,separately.The results indicate that the content of tungsten is far less than the addition of tungsten precursor.The amount of tungsten precursor displays important effect on the electrocatalytic activities.The Pt-WO₃/C catalyst presents the best activity 1.6 times higher than Pt/C catalyst,when the atomic ratio of N₅H₃₇W₆O₂₄·H₂O/H₂PtCl₆·6H₂O is 3/8.更多还原