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In situ electrochemical FTIR spectroscopy of adsorption and oxidation process of methanol on PtRu/C electrocatalyst
Wang Qi; Sun Gong-Quan; Yan Shi-You; Wang Guo-Xiong; Xin Qin; Chen Qing-Song; Li Jun-Tao; Jiang Yan-Xia; Sun Shi-Gang
关键词Direct Methanol Fuel Cell Ptru/c Methanol Oxidation Electrochemistry In Situ Ftir
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2006-11-10
27期:11页:2123-2127
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]FUEL-CELLS ; FILM ELECTRODE ; THIN-FILMS ; PLATINUM ; CO ; CATALYSTS ; ELECTROOXIDATION ; RUTHENIUM ; ALLOYS ; ACID
英文摘要A modified polyol process was used to prepare Pt/C, PtRu/C and Ru/C electrocatalysts. Calculated from XRD patterns, the mean particle size of PtRu/C electrocatalyst was 2.2 nm and the percentage of Ru allayed was 71%, respectively. Adsorption and electro-oxidation progress of methanol on PtRu/C electrocatalyst was investigated by in situ FTIRS, combined with electrochemical experiments. It is revealed that the activity of PtRu/C electrocatalyst for methanol oxidation was much higher than that of Pt/C. Addition of Ru in PtR.u/C electrocatalyst changed the characteristic of methanol adsorption, and Ru-OH species could oxidize linear bonded CO (COL) at a lower potential, thus inhibited the catalyst poisoning. In addition, from FTIRs results, COL was evidently identified to the main poisonous species and the major product was CO2. Methyl formate was also identified. Based on these results, the mechanism of methanol oxidation was discussed.
语种英语
WOS记录号WOS:000242182500031
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140296
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
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Wang Qi,Sun Gong-Quan,Yan Shi-You,et al. In situ electrochemical FTIR spectroscopy of adsorption and oxidation process of methanol on PtRu/C electrocatalyst[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(11):2123-2127.
APA Wang Qi.,Sun Gong-Quan.,Yan Shi-You.,Wang Guo-Xiong.,Xin Qin.,...&Sun Shi-Gang.(2006).In situ electrochemical FTIR spectroscopy of adsorption and oxidation process of methanol on PtRu/C electrocatalyst.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(11),2123-2127.
MLA Wang Qi,et al."In situ electrochemical FTIR spectroscopy of adsorption and oxidation process of methanol on PtRu/C electrocatalyst".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.11(2006):2123-2127.
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