Construction of uniform nanodots CeO2 stabilized by porous silica matrix for 1,2-Dichloroethane (cas 107-06-2) catalytic combustion
-
Add time:08/20/2019 Source:sciencedirect.com
The construction of uniform nanodots CeO2 stabilized by porous silica matrix (CeO2@SiO2-T) was synthesized by a spontaneous deposition method. Based on the XRD and TEM results, the CeO2 nanodots were highly dispersed on the porous silica matrix. The characterizations including O2-TPD, XPS, and NH3-TPD clarified that CeO2@SiO2-T catalysts possessed strong acidity, rich surface adsorbed oxygen species and oxygen mobility, which was beneficial to the improvement of adsorption and catalytic oxidation of 1,2-Dichloroethane (cas 107-06-2) (DCE). The CeO2@SiO2-T catalysts exhibited high performance for DCE oxidation, in which the CeO2@SiO2-400 catalyst showed the best performance (T90 = 275 °C at a space velocity of 15000 h−1) and good stability (at 295 °C for 100 h). The characterization and activity test results showed that the richer acid sites were beneficial to the adsorption and activation of DCE, contributing to the subsequent HCl removal and vinyl chloride (VC) formation. Noticeably, the weak acid sites were more favorable for the improvement of catalytic activity. Then major of VC would be oxidized to adsorbed acetate, which could be further decomposed to COx and HCl. In addition, trace poly-chlorinated by-products were detected. The abundant surface adsorbed oxygen species and excellent oxygen mobility facilitated the further oxidation rather than the chlorination reactions.
We also recommend Trading Suppliers and Manufacturers of 1,2-Dichloroethane (cas 107-06-2). Pls Click Website Link as below: cas 107-06-2 suppliers
Prev:Article (Special Issue on Celebrating the 40th Anniversary of Institute of Catalysis, Zhejiang University)Elimination of 1,2-Dichloroethane (cas 107-06-2) over (Ce, Cr)xO2/Nb2O5 catalysts: synergistic performance between oxidizing ability and acidity
Next:Rational design of CrOx/LaSrMnCoO6 composite catalysts with superior chlorine tolerance and stability for 1,2-Dichloroethane (cas 107-06-2) deep destruction) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Rational design of CrOx/LaSrMnCoO6 composite catalysts with superior chlorine tolerance and stability for 1,2-Dichloroethane (cas 107-06-2) deep destruction08/21/2019
- Article (Special Issue on Celebrating the 40th Anniversary of Institute of Catalysis, Zhejiang University)Elimination of 1,2-Dichloroethane (cas 107-06-2) over (Ce, Cr)xO2/Nb2O5 catalysts: synergistic performance between oxidizing ability and acidity08/19/2019
- Impact of magnetite nanoparticles on the syntrophic dechlorination of 1,2-Dichloroethane (cas 107-06-2)08/18/2019