石墨烯与掺N石墨烯对甲酸盐电氧化催化剂Pt和Pd抗毒性的提升研究  

Promoting Effects of Graphene Nanosheets and N-doped Graphene Nanosheets on Anti-poisoning Performances of Pt and Pd Catalysts for Formate Oxidation

作　　者：王建设[1] 杨玉杰[1] 程相林[1] 赵建宏[1] 宋成盈[1] 王留成[1] WANG Jianshe YANG Yujie CHENG Xianglin ZHAO Jianhong SONG Chengying WANG Liucheng(School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China)

机构地区：[1]郑州大学化工与能源学院,郑州450001

出　　处：《河南师范大学学报（自然科学版）》2016年第5期60-64,共5页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(U1304215)

摘　　要：为研究载体对甲酸盐电氧化催化剂抗毒性的促进作用,将商用催化剂Pt/C和Pd/C分别与石墨烯(GNs)及掺N石墨烯(NGNs)超声混合后涂制电极,通过循环伏安法(CV)及计时电流法(CA)比较了混合GNs及NGNs对催化剂抗毒性的影响.结果表明,加入GNs和NGNs均可提高Pt/C与Pd/C的抗毒性,其中NGNs提升作用更显著.该研究表明,石墨烯类材料改善催化剂抗毒性具有普适意义.To demonstrate the promoting effect of supports on anti-poisoning performance of formate oxidation catalysts,commercial Pt/C and Pd/C were mixed with graphene nano-sheets（GNs）and nitrogen doped GNs（NGNs）by ultrasonication and coated on glassy carbon electrodes.Then the prepared electrodes were investigated using cyclic voltammetry（CV）and chronoamperometry（CA）methods.The results showed that the anti-poisoning performance of Pt/C and Pd/C can be enhanced by introducing GNs and NGNs,with NGNs being superior to GNs,indicating that it is a general strategy to enhance the antipoisoning performance of catalysts by using graphene-based supports.

关 键 词：石墨烯 掺N石墨烯 甲酸盐电氧化 抗毒性 PT PD 

分 类 号：O413[理学—理论物理]