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Microcalorimetric study of differential heats of CO adsorption on PtRu/C fuel cell catalysts
Zhang, YJ; Li, JY; Zhang, JT; Xin, Q
关键词Microcalorimetry Differential Heat Of Co Adsorption Carbon Supported Bimetallic Ptru Catalyst
刊名ACTA CHIMICA SINICA
2004-11-14
62期:21页:2205-2208
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
英文摘要The differential heats of CO adsorption measured by microcalorimetry have been used to probe surface adsorption sites presented on carbon black (XC72R) supported Pt, Ru and bimetallic PtRu catalysts. These results indicate that the monometallic Pt catalyst shows the highest initial differential heat of CO adsorption (125 kJ . mol(-1)) and the monometallic Ru catalyst displays the lowest one (109 kJ . mol(-1)). Three kinds of bimetallic catalysts with atomic ratios of Pt to Ru, 2:1, 1:1 and 1: 2, have initial differential heats of CO adsorption (124 similar to 112 kJ . mol(-1)) beriveen those of monometallic Pt and monometallic Ru catalyst. The strong Pt surface sites of CO adsorption were completely covered by Ru atoms in the case of the bimetallic catalyst with atomic ratio of Pt to Ru of 1:2.
语种英语
WOS记录号WOS:000225048900015
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139464
专题中国科学院大连化学物理研究所
作者单位1.Xian Shiyou Univ, Coll Chem & Chem Engn, Xian 710065, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Zhang, YJ,Li, JY,Zhang, JT,et al. Microcalorimetric study of differential heats of CO adsorption on PtRu/C fuel cell catalysts[J]. ACTA CHIMICA SINICA,2004,62(21):2205-2208.
APA Zhang, YJ,Li, JY,Zhang, JT,&Xin, Q.(2004).Microcalorimetric study of differential heats of CO adsorption on PtRu/C fuel cell catalysts.ACTA CHIMICA SINICA,62(21),2205-2208.
MLA Zhang, YJ,et al."Microcalorimetric study of differential heats of CO adsorption on PtRu/C fuel cell catalysts".ACTA CHIMICA SINICA 62.21(2004):2205-2208.
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