{"title":"Enhancement of catalytic efficiency by partial replacement of ruthenium with platinum nanoparticles for direct methanol fuel cell","authors":"Chuan Chang, Liangxu Lin, Yi-Shiuan Wu, F. Tseng","doi":"10.1109/NEMS.2014.6908804","DOIUrl":null,"url":null,"abstract":"In this paper, an open-loop reduction system (OLRS) [1] is employed to produce the core-shell Pt (platinum)/Ru (ruthenium) catalysts on the carbon nanotube/carbon fiber supports (CNT/CF) for direct methanol fuel cell (DMFC) application. By adjusting pH value of the ionized reduction environment, Pt4+ can be first converted into Pt2+ to allow partial Ru replacement with Pt by redox transmetalation and produce Pt/Ru core-shell nano structures [2,3]. Methanol oxidation efficiency and carbon monoxide (CO) poisoning tolerance of the prepared core-shell nano catalysts can be greatly enhanced by our developed OLRS compared to conventional reflux system [4].","PeriodicalId":22566,"journal":{"name":"The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)","volume":"57 1","pages":"260-264"},"PeriodicalIF":0.0000,"publicationDate":"2014-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NEMS.2014.6908804","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, an open-loop reduction system (OLRS) [1] is employed to produce the core-shell Pt (platinum)/Ru (ruthenium) catalysts on the carbon nanotube/carbon fiber supports (CNT/CF) for direct methanol fuel cell (DMFC) application. By adjusting pH value of the ionized reduction environment, Pt4+ can be first converted into Pt2+ to allow partial Ru replacement with Pt by redox transmetalation and produce Pt/Ru core-shell nano structures [2,3]. Methanol oxidation efficiency and carbon monoxide (CO) poisoning tolerance of the prepared core-shell nano catalysts can be greatly enhanced by our developed OLRS compared to conventional reflux system [4].
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
