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Surface Charge Polarization at the Interface: Enhancing the Oxygen Reduction via Precise Synthesis of Heterogeneous Ultrathin Pt/PtTe Nanowire
Li, HH; Xie, ML; Cui, CH; He, D; Gong, M; Jiang, J; Zheng, YR; Chen, G; Lei, Y; Yu, SH; Yu, SH (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Dept Chem,Div Nanomat & Chem, Hefei 230026, Anhui, Peoples R China.; Jiang, J (reprint author), Univ Sci & Technol China, Collaborat Innovat Ctr Chem Energy Mat, Hefei Sci Ctr CAS, Hefei 230026, Anhui, Peoples R China.
2016
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume28Issue:24Pages:8890-8898
Subtype期刊论文
AbstractHeterointerface tailoring is of importance for the catalytic activity enhancement of nanomaterials in various reactions owing to the charge polarization at the interface. We report an accurate manipulation of a replacement reaction for Pt/PtTe heteronanowire and PtTe homonanowire fabrication. Their geometric structures are controlled by using the aged K2PtCl4 in ethylene glycol (EG) as Pt precursors with self-tuned coordination state and structure. The aging process enables the slow conversion of PtCl42- to linear structured PtmCln leading to their tunable oxidation ability. The Pt-Pt bond formation during aging has been revealed by time-resolved in situ UV-vis and X-ray absorption fine structure (XAFS) spectroscopies. The coexistence of a highly active Te template, PtCl42- ions, and linear structured PtmCln complexes allows Pt nanoparticles (NPs) to grow in situ on the PtTe nanowires (NWs), forming a controllable interface structure that served as catalytic active sites and charge transfer location. In combination with theoretical calculations, we highlight that enhanced activity toward oxygen reduction resulted from the surface charge polarization at the Pt/PtTe heterointerface and the long-term stability benefited from the structural stability of the interface.
DOI10.1021/acs.chemmater.6b02769
Indexed BySCI
Language英语
WOS IDWOS:000391080900006
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/26642
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorYu, SH (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Dept Chem,Div Nanomat & Chem, Hefei 230026, Anhui, Peoples R China.; Jiang, J (reprint author), Univ Sci & Technol China, Collaborat Innovat Ctr Chem Energy Mat, Hefei Sci Ctr CAS, Hefei 230026, Anhui, Peoples R China.
Recommended Citation
GB/T 7714
Li, HH,Xie, ML,Cui, CH,et al. Surface Charge Polarization at the Interface: Enhancing the Oxygen Reduction via Precise Synthesis of Heterogeneous Ultrathin Pt/PtTe Nanowire[J]. CHEMISTRY OF MATERIALS,2016,28(24):8890-8898.
APA Li, HH.,Xie, ML.,Cui, CH.,He, D.,Gong, M.,...&Jiang, J .(2016).Surface Charge Polarization at the Interface: Enhancing the Oxygen Reduction via Precise Synthesis of Heterogeneous Ultrathin Pt/PtTe Nanowire.CHEMISTRY OF MATERIALS,28(24),8890-8898.
MLA Li, HH,et al."Surface Charge Polarization at the Interface: Enhancing the Oxygen Reduction via Precise Synthesis of Heterogeneous Ultrathin Pt/PtTe Nanowire".CHEMISTRY OF MATERIALS 28.24(2016):8890-8898.
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