Au-BINOL Hybrid Nanocatalysts: Insights into the Structure-Based Enhancement of Catalytic and Photocatalytic Performance
- Shashank Reddy PatlollaShashank Reddy PatlollaInstitute of Chemistry, Academia Sinica, Taipei 11529, TaiwanSustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica and National Chiao Tung University, Taipei 11529, TaiwanDepartment of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, TaiwanMore by Shashank Reddy Patlolla
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- Chen-Rui Kao
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- Guan-Wei ChenGuan-Wei ChenInstitute of Chemistry, Academia Sinica, Taipei 11529, TaiwanDepartment of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, TaiwanMore by Guan-Wei Chen
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- Yu-Cheng HuangYu-Cheng HuangDepartment of Electrophysics, National Chiao Tung University, Hsinchu 30010, TaiwanMore by Yu-Cheng Huang
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- Yu-Chun ChuangYu-Chun ChuangNational Synchrotron Radiation Research Center, Hsinchu 30076, TaiwanMore by Yu-Chun Chuang
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- Brian T. Sneed
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- Wu-Ching ChouWu-Ching ChouDepartment of Electrophysics, National Chiao Tung University, Hsinchu 30010, TaiwanMore by Wu-Ching Chou
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- Tiow-Gan Ong*Tiow-Gan Ong*E-mail: [email protected]Institute of Chemistry, Academia Sinica, Taipei 11529, TaiwanMore by Tiow-Gan Ong
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- Chung-Li Dong*Chung-Li Dong*E-mail: [email protected]Department of Physics, Tamkang University, New Taipei 25137, TaiwanMore by Chung-Li Dong
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- Chun-Hong Kuo*Chun-Hong Kuo*E-mail: [email protected]Institute of Chemistry, Academia Sinica, Taipei 11529, TaiwanInstitute of Materials Science and Engineering, National Central University, Jhongli 32001, TaiwanMore by Chun-Hong Kuo
Abstract
Advances in new systems of organic–inorganic hybrid nanocomposites are less prevalent, owing to a lack of facile strategies for precise control of their structures, compositions, and, hence, their properties. In this work, Au-BINOL hybrid nanocomposites with eccentric and concentric nanostructures were produced. The hybrid nanocomposites containing two distinct moieties of inorganic Au nanocrystals and organic BINOL nanospheres were applied to the catalytic hydrogenation of 4-nitrophenol with NaBH4 in the aqueous phase with and without the illumination of visible light. Here, we demonstrate that the existence of Au–BINOL interfaces offers benefits to their performance. The eccentric nanostructures made with CTAC show the superior activity from large Au–BINOL interfaces formed between the BINOL nanospheres and the faces of Au nanoplates. They further exhibit a high Au localized surface plasmon resonance (LSPR)-enhancement effect on the photoreduction of 4-nitrophenol, which is attributed to the strong LSPR absorption of exposed Au nanocrystals unaffected by the coverage of BINOL shells.
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