One-step Synthesis of N-Doped Mesoporous Carbon as Highly Efficient Support of Pd Catalyst for Hydrodechlorination of 2,4-Dichlorophenol
| Autor: | Li Ying, Tang Haodong, Xu Bin, Liu Zongjian, Han Wenfeng, Xiang Meng |
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| Rok vydání: | 2018 |
| Předmět: |
Oxalic acid
2 4-Dichlorophenol 02 engineering and technology General Chemistry Thermal treatment 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polyvinylidene fluoride Dimethylacetamide 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Chemical engineering medicine 0210 nano-technology Activated carbon medicine.drug Template method pattern |
| Zdroj: | Chemical Research in Chinese Universities. 34:1004-1008 |
| ISSN: | 2210-3171 1005-9040 |
| Popis: | Although the hard template method is often employed to prepare N-doped mesoporous carbon(N-MC), the removal of the silica template commonly involves the use of highly toxic HF or repeated treatment with NaOH solution. Herein, we report a polyvinylidene fluoride-assisted one-step method for synthesis of N-MC, namely the silica-free N-MC can be prepared via temperature-programmed thermal treatment of a slurry obtained by dispersing nano-silica into a solution containing sucrose, urea, oxalic acid, polyvinylidene fluoride and dimethylacetamide. The resulting N-MC, which owns 3.47%(mass fraction) nitrogen and a surface area of 929 m2/g, is a highly suitable support of Pd catalyst used in hydrodechlorination of 2,4-dichlorophenol, with its performance being much better than those of MC and activated carbon. The excellent catalytic hydrodechlorination activity of the Pd/N-MC catalyst can be attributed to its strong metal-support interaction which results in a good Pd dispersion and high resistance to the growth of nanosized Pd under reaction conditions. |
| Databáze: | OpenAIRE |
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