Controlling Shape and Plasmon Resonance of Pt-Etched AuAg Nanorods

Pt-based catalysts with novel structure have attracted great attention due to their outstanding performance. In this work, H2PtCl6 was used as both precursor and etching agent to realize the shape-controlled synthesis of Pt-modified AuAg nanorods (NRs). During the synthesis, the as-prepared Ag shell...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 34(2018), 20 vom: 22. Mai, Seite 5719-5727
1. Verfasser: Ye, Rongkai (VerfasserIn)
Weitere Verfasser: Zhang, Yanping, Chen, Yuyu, Tang, Liangfeng, Wang, Qiong, Wang, Qianyu, Li, Bishan, Zhou, Xuan, Liu, Jianyu, Hu, Jianqiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a Pt-based catalysts with novel structure have attracted great attention due to their outstanding performance. In this work, H2PtCl6 was used as both precursor and etching agent to realize the shape-controlled synthesis of Pt-modified AuAg nanorods (NRs). During the synthesis, the as-prepared Ag shell played a crucial role in both protecting the Au NRs from being etched away by PtCl62- and leading to an unusual growth mode of Pt component. The site-specified etching and/or growth depended on the concentration of H2PtCl6, where high-yield core-shell structure or dumbbell-like structure could be obtained. The shape-controlled synthesis also led to a tunable longitudinal surface plasmon resonance from ca. 649 to 900 nm. Meanwhile, the core-shell Pt-modified Au@Ag NRs showed approximately 4-fold enhancement in catalytic reduction reaction of p-nitrophenol than that of the Au NRs, suggesting the great potential for photocatalytic reaction 
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700 1 |a Zhang, Yanping  |e verfasserin  |4 aut 
700 1 |a Chen, Yuyu  |e verfasserin  |4 aut 
700 1 |a Tang, Liangfeng  |e verfasserin  |4 aut 
700 1 |a Wang, Qiong  |e verfasserin  |4 aut 
700 1 |a Wang, Qianyu  |e verfasserin  |4 aut 
700 1 |a Li, Bishan  |e verfasserin  |4 aut 
700 1 |a Zhou, Xuan  |e verfasserin  |4 aut 
700 1 |a Liu, Jianyu  |e verfasserin  |4 aut 
700 1 |a Hu, Jianqiang  |e verfasserin  |4 aut 
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