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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
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
2012-08-15
DOI10.1021/ja306501x
Volume134Issue:32Pages:13252-13255
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordPEM FUEL-CELL ; OXYGEN-REDUCTION ; ELECTROCATALYSTS ; NANOPARTICLES ; CATHODE
AbstractWe 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.
Language英语
WOS IDWOS:000307487200028
Citation statistics
Cited Times:241[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/143154
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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