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Nanostructured Polyaniline-Decorated Pt/C@PANI Core-Shell Catalyst with Enhanced Durability and Activity
Chen, Siguo1; Wei, Zidong1; Qi, XueQiang1; Dong, Lichun1; Guo, Yu-Guo2; Wan, Lijun2; Shao, Zhigang3; Li, Li1
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
2012-08-15
DOI10.1021/ja306501x
134期:32页:13252-13255
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]PEM FUEL-CELL ; OXYGEN-REDUCTION ; ELECTROCATALYSTS ; NANOPARTICLES ; CATHODE
英文摘要We have designed and synthesized a polyaniline (PANI)-decorated Pt/C@PANI core-shell catalyst that shows enhanced catalyst activity and durability compared with nondecorated Pt/C. The experimental results demonstrate that the activity for the oxygen reduction reaction strongly depends on the thickness of the PANI shell and that the greatest enhancement in catalytic properties occurs at a thickness of 5 nm, followed by 2.5, 0, and 14 nm. Pt/C@PANI also demonstrates significantly improved stability compared with that of the unmodified Pt/C catalyst. The high activity and stability of the Pt/C@PANI catalyst is ascribed to its novel PANI-decorated core shell structure, which induces both electron delocalization between the Pt d orbitals and the PANI pi-conjugated ligand and electron transfer from Pt to PANI. The stable PANT shell also protects the carbon support from direct exposure to the corrosive environment.
语种英语
WOS记录号WOS:000307487200028
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143154
专题中国科学院大连化学物理研究所
作者单位1.Chongqing Univ, Coll Chem & Chem Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Liaoning 116023, Peoples R China
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Chen, Siguo,Wei, Zidong,Qi, XueQiang,et al. Nanostructured Polyaniline-Decorated Pt/C@PANI Core-Shell Catalyst with Enhanced Durability and Activity[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2012,134(32):13252-13255.
APA Chen, Siguo.,Wei, Zidong.,Qi, XueQiang.,Dong, Lichun.,Guo, Yu-Guo.,...&Li, Li.(2012).Nanostructured Polyaniline-Decorated Pt/C@PANI Core-Shell Catalyst with Enhanced Durability and Activity.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,134(32),13252-13255.
MLA Chen, Siguo,et al."Nanostructured Polyaniline-Decorated Pt/C@PANI Core-Shell Catalyst with Enhanced Durability and Activity".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 134.32(2012):13252-13255.
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