Citation: Xiaolong Wang, Guojun Lan, Zaizhe Cheng, Wenfeng Han, Haodong Tang, Huazhang Liu, Ying Li. Carbon-supported ruthenium catalysts prepared by a coordination strategy for acetylene hydrochlorination[J]. Chinese Journal of Catalysis, ;2020, 41(11): 1683-1691. doi: 10.1016/S1872-2067(20)63616-6 shu

Carbon-supported ruthenium catalysts prepared by a coordination strategy for acetylene hydrochlorination

Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China

Received Date: 13 February 2020
Revised Date: 24 March 2020

Fund Project: This work was supported by the National Natural Science Foundation of China (21908197).

The development of efficient and stable non-mercury catalysts for the chlor-alkali industry is desirable but remains a great challenge. Herein, we design a series of ruthenium catalysts for acetylene hydrochlorination by regulating the electronic structure of ruthenium ions through coordination with various ligands (thiourea, phenanthroline, and L-lactic). The turnover frequencies (TOFs) and apparent activation energies for the acetylene hydrochlorination have a linear relationship with the binding energy of Ru³⁺ in the ruthenium catalysts. The synergetic effect of the ruthenium ion and ligands plays an important role in acetylene hydrochlorination. The Ru-Thi/AC catalyst with thiourea as the ligand shows the highest TOF and stability in acetylene hydrochlorination. The present study provides a rational method to regulate the electronic structure of supported metal catalysts with high catalytic performance exhibited by the carbon-supported heterogeneous catalysts.
- Ruthenium catalyst,
- Ligand,
- Electronic structure,
- Synergetic effect,
- Acetylene hydrochlorination
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