期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 22, 期 37, 页码 20995-20999出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cp04043f
关键词
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资金
- National Natural Science Foundation of China [21606199, 21476207]
- Science and Technology Department of Zhejiang Province [LGG20B060004]
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.
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