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Catalytic Oxidation of 1,2-Dichloroethane on RuCoOx/CePO4 Catalysts: Synergetic Inhibition of Chlorinated Byproducts
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  • Qiguang Dai,
  • Hangqi Xia,
  • Lilin Liu,
  • Qiang Niu,
  • Feng Wang,
  • Hao Zhang,
  • Wangcheng Zhan,
  • Xingyi Wang
Qiguang Dai
East China University of Science and Technology

Corresponding Author:daiqg@ecust.edu.cn

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Hangqi Xia
East China University of Science and Technology
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Lilin Liu
East China University of Science and Technology
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Qiang Niu
Group Co., Ltd.
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Feng Wang
East China University of Science and Technology
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Hao Zhang
East China University of Science and Technology
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Wangcheng Zhan
East China University of Science and Technology
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Xingyi Wang
East China University of Science and Technology
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Abstract

Highly toxici and reactive chlorinated VOCs (Cl-VOCs) is urgent for purification by the most favoured catalytic oxidation, however, the formation of polycholoriated byproducts is hugely obstacle. Here, monoclinic and 3D urchin-like CePO4 was synthesized and used as the support of highly active but lowly selective Co3O4 for catalytic oxidation of Cl-VOCs. The prepared Co3O4/CePO4 using ascorbic acid as a chelating agent presented a high activity and low selectivity of vinyl chloride (VC) for catalytic oxidation of 1,2-dichloroethane (DCE) due to the high dispersion of Co3O4, some possible polychlorinated byproducts were completely inhibited in the presence of CePO4. The co-introduction of RuO2 further suppressed the formation of VC owing to the enhanced redox ability and migration of surface lattice oxygen. Moreover, RuCoOx/CePO4 also revealed the superior versatility, durability and thermal stability as well as the outstanding resistance to CO2, H2O and sulfur.