4.7 Article

Dechlorination of chlorobenzene on vanadium-based catalysts for low-temperature SCR

Journal

CHEMICAL COMMUNICATIONS
Volume 54, Issue 16, Pages 2032-2035

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc08705e

Keywords

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Funding

  1. National Key Research and Development Program [2017YFC0210201, 2017YFC0210701]
  2. National Natural Science Foundation of China [21777081, 21647003]
  3. China Postdoctoral Science Foundation [2016M601052]

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Chlorobenzene (CB) inhibits SCR activity of V-based catalysts at low temperature, though the adsorption amount is small. NH3 adsorption increases due to the break in the C-Cl bond during CB oxidation. The dissociated Cl- ions provide extra Bronsted acid sites, leading to the formation of inactive NH4Cl. Ce and Mn improve dechlorination, forming more NH4Cl on the catalyst surface.

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