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
发表期刊CHEMISTRY OF MATERIALS
ISSN0897-4756
卷号28期号:24页码:8890-8898
文章类型期刊论文
摘要Heterointerface 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
收录类别SCI
语种英语
WOS记录号WOS:000391080900006
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26642
专题中科院上海应用物理研究所2011-2018年
通讯作者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.
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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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