Journal
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume 9, Issue 6, Pages 14961-14968Publisher
ELSEVIER
DOI: 10.1016/j.jmrt.2020.10.072
Keywords
Bismuth catalysis; Carbon nanotubes; Acetylene hydrochlorination; Vinyl chloride; Monomer
Funding
- National Natural Science Foundation of China [21968033, U1903130]
- Postdoctoral Science Foundation of China [2019M653800]
- program of the education department of Xinjiang Uygur Autonomous Region [XJEDU2018Y002]
- 100 Young Doctor Introduction Plan in Xinjiang Uygur Autonomous Region
- natural Science Foundation of Xinjiang university [BS160222]
- Graduate Research and Innovation Program of Xinjiang [XJ2019G050]
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The serial Bi/CNTs catalysts were prepared by ultrasonic-assisted impregnation method with bismuth chloride and carbon nanotubes. During acetylene hydrochlorination reaction, the Bi/CNTs catalyst with 20 wt% Bi loading exhibited an excellent catalytic performance with 91.7% acetylene conversion and 97.3% vinyl chloride selectivity in 10 h at T = 160 degrees C, GHSV(C2H2) = 120 h(-1) and V(HCl): V(C2H2) = 1.29. It is proposed that the BiOCl with a stable Bi3+ species existed on the catalyst surface, which can be considered as the major active site in the Bi-based catalysts. Bi species loss and the carbon deposition formation are the main deactivation reasons for Bi/CNTs catalysts. (C) 2020 The Author(s). Published by Elsevier B.V.
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