Palladium Nanoparticles Anchored on Amine-Functionalized Silica Nanotubes as a Highly Effective Catalyst
| Autor: | Chencheng Hu, Jufang Hao, Junwu Xiao, Baojiang He, Zhengwu Bai, Jiangbo Xi, Shuai Wang, Jin Liu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Composite number Palladium nanoparticles Selective catalytic reduction 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Redox 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Catalysis General Energy Chemical engineering Pd nanoparticles Amine gas treating Physical and Theoretical Chemistry 0210 nano-technology Reusability |
| Zdroj: | The Journal of Physical Chemistry C. 122:2696-2703 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.7b10237 |
| Popis: | The catalytic performance of supported heterogeneous catalysts is mainly dependent on their constitutive components including active species and supports. Therefore, the design and development of effective catalysts with synergistic enhanced effect between active sites and supports is of great significance. A facile in situ reduction approach to prepare amine-functionalized silica nanotubes (ASNTs)-supported Pd (ASNTs@Pd) composite catalyst is demonstrated in this article. Benefiting from the intrinsic physical and chemical properties of the ASNTs support and deposited Pd nanoparticles (NPs), the as-prepared ASNTs@Pd catalyst exhibits superior catalytic activity, stability, and reusability toward nitroarene reduction reactions. For catalytic reduction of 4-nitrophenol, the turnover frequency (TOF) is as high as 313.5 min–1, which is much higher than that of commercial Pd/C (5.0 wt %) and many noble-metal based catalysts reported in the last 5 years. In addition, a high TOF of 57.4 min–1 was also realized ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|