Synergistic effect of two action sites on a nitrogen-doped carbon catalyst towards acetylene hydrochlorination
| Autor: | Chen Zhi, Zhiyan Pan, Yuxue Yue, Ting Wang, Xiaonian Li, Jia Zhao, Bolin Wang, Xiangxue Pang, Zhu Wenrui, Shao Shujuan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
inorganic chemicals
biology General Physics and Astronomy Active site chemistry.chemical_element Nitrogen doped 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Action sites 0104 chemical sciences Catalysis chemistry.chemical_compound Adsorption Acetylene chemistry biology.protein Physical and Theoretical Chemistry 0210 nano-technology Hydrogen chloride Carbon |
| Zdroj: | Physical Chemistry Chemical Physics. 22:20995-20999 |
| ISSN: | 1463-9084 1463-9076 |
| DOI: | 10.1039/d0cp04043f |
| Popis: | Whether the reaction pathway is steady or dynamic over the whole life cycle of a catalyst process can facilitate our understanding of its catalytic behavior. Herein, the dynamic reaction pathways of nitrogen-doped carbon catalysts are investigated in acetylene hydrochlorination. When triggered, the reaction follows the Langmuir-Hinshelwood mechanism with pyrrolic N and pyridinic N as dual active sites. However, pyridinic N is deactivated first, due to the strong adsorption of hydrogen chloride, causing the reaction to further run with pyrrolic N as the single active site and follow the Eley-Rideal mechanism. This work provides a new promising way to study the catalytic behavior of nitrogen-doped carbon catalysts. |
| Databáze: | OpenAIRE |
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