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在碱性溶液中NiO增强Pt/C和Pd/C催化剂上乙二醇的电化学氧化
Ethylene glycol oxidation on Pt/C and Pd/C electrocatalysts enhanced by NiO in alkaline media
【摘要】 研究了乙二醇在1.0 mol/L KOH溶液中在Pt/C,Pt-NiO(质量比4∶1)/C,Pd/C和Pd-NiO(质量比4∶1)/C电极上电化学氧化活性.结果显示单纯Pd/C催化剂对乙二醇电化学氧化表现出非常低的活性,远远比不上Pt/C催化剂,但抗催化剂毒化能力好于Pt/C.经过氧化物增强后,Pt/C和Pd/C对乙二醇电化学氧化活性和抗毒化能力都得到大幅度提高,Pd-NiO(质量比4∶1)/C对乙二醇电化学氧化活性超过Pt/C.
【Abstract】 This study investigates NiO-promoted Pt/C and Pd/C for electrooxidation reactions ethylene glycol(EG) in alkaline media.The results show that Pd/C electrocatalysts alone have lower activity than Pt/C,however shows better poisoning-resistance than Pt/C for the electrooxidation reaction of EG.Addition of NiO significantly promotes catalytic activity and poisoning-resistance of the Pt/C and Pd/C electrocatlayts for the EG electrooxidation.The Pd-NiO(4∶1 by weight)/C gives better performance than Pt/C for EG oxidation in alkaline media.
【Key words】 fuel cells； ethylene glycol； electrooxidation； palladium； NiO；
- 【文献出处】 暨南大学学报(自然科学版) ,Journal of Jinan University(Natural Science Edition) , 编辑部邮箱 ,2007年05期
- 【分类号】TM911.4
- 【下载频次】209