Promoting Effects of Graphene Nanosheets and N-doped Graphene Nanosheets on Anti-poisoning Performances of Pt and Pd Catalysts for Formate Oxidation
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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.
作者:
王建设 杨玉杰 程相林 赵建宏 宋成盈 王留成
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:
郑州大学化工与能源学院
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2016年第5期60-64,共5页
基金：
国家自然科学基金(U1304215)
关键词：
石墨烯 掺N石墨烯 甲酸盐电氧化 抗毒性 PT PD
graphene nano-sheets nitrogen doped graphene nano-sheets formate oxidation anti-poisoning performance platinum palladium
分类号：
O413 [理学—理论物理]
