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Effects of Cl− on Cu2O nanocubes for direct epoxidation of propylene by molecular oxygen.
- Source :
-
Catalysis Communications . Feb2020, Vol. 135, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- Promoters have been widely used in industrial catalysis but understanding the mechanism behind their function is still a challenging subject. As ideal model catalysts, nanocrystal catalysts with well−defined exposing facets and relatively large specific surface have attracted intense attention. We explored the effect of Cl− loading on Cu 2 O nanocubes enclosed by (100) facets for the direct epoxidation of propylene by molecular oxygen. Interestingly, a volcano−type curve was obtained when the selectivity and conversion are plotted as a function of the loading amount of Cl−, indicating that optimal surface O/Cl− ratio is critical for desirable catalytic performance. Unlabelled Image • Using Cu 2 O nanocubes enclosed by (100) facets as model catalytic systems. • NH 4 Cl doping played a positive role for direct epoxidation of propylene. • The activity and selectivity critically depended on the loading amount of NH 4 Cl. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EPOXIDATION
*PROPENE
*OXYGEN
*CATALYSIS
*CATALYSTS
Subjects
Details
- Language :
- English
- ISSN :
- 15667367
- Volume :
- 135
- Database :
- Academic Search Index
- Journal :
- Catalysis Communications
- Publication Type :
- Academic Journal
- Accession number :
- 140466764
- Full Text :
- https://doi.org/10.1016/j.catcom.2019.105897