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dc.contributor.authorZhedaobao
dc.contributor.author褚道葆
dc.contributor.authorFengdexiang
dc.contributor.author冯德香
dc.contributor.authorZhangjinhua
dc.contributor.author张金花
dc.contributor.authorLinhuashui
dc.contributor.author林华水
dc.contributor.authorHuweiling
dc.contributor.author胡维玲
dc.contributor.authorTianzhaowu
dc.contributor.author田昭武
dc.date.accessioned2011-10-16T14:36:38Z
dc.date.available2011-10-16T14:36:38Z
dc.date.issued2005
dc.identifier.citationACTA CHIMICA SINICA,2005,63(22);2027-2031zh_CN
dc.identifier.issn0567-7351
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10934
dc.description.abstractThe nanoTiO(2)-CNT-PtNi complex catalysts were prepared by the direct hydrolysis of electrosynthetic precursor Ti(OEt)(4) and electrochemical scan electrodepositing method. The results of XRD and SEM show that the PtNi nanoparticle of average size 8 nm was dispersed uniformly on nanoTiO(2)-CNT complex film surface. The electrocatalytic activity of the nanoTiO(2)-CNT-PtNi complex catalysts was investigated by cyclic voltammetry and chronopotentiogram. The results indicated that the nanoTiO(2)-CNT-PtNi complex catalysts with Pt loading of 0.32 mg/cm(2) exhibited high electrochemically active surface area of 90 m(2)/g and very high electrocatalytic activity and stability for electro-oxidation of methanol. The oxidation peak potential of methanol was 0.67 and 0.44 V at room temperature in atmosphere pressure, respectively, and shifted to 0.64 and 0.30 V at 60 degrees C and the oxidation peak current of methanol was 1.38 A/cm(2). The high electrocatalytic activity and good stability can be attributed to the synergistic catalytic effect of nanocomposite, which leads to the weak adsorption of CO on complex nanostructure catalysts, avoiding poisoning of the catalysts.zh_CN
dc.language.isozhzh_CN
dc.publisherSCIENCE PRESSzh_CN
dc.subjectdirect methanol fuel cellzh_CN
dc.subjectanode catalystzh_CN
dc.subjectnanocrystalline TiO2zh_CN
dc.subjectcarbon nanometer tubezh_CN
dc.subjectPtNi alloy particlezh_CN
dc.subjectcomplex catalystzh_CN
dc.subjectelectro-oxidation of methanolzh_CN
dc.subjectscan electrodepositingzh_CN
dc.titleNovel system of direct methanol fuel cell anode catalysts: NanoTiO(2)-CNT-PtNi complex catalystszh_CN


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