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Decomposition of the mixed-metal coordination polymer—A preparation route of the active Ag/Yb2O3 catalyst for the deN2O process.
- Source :
-
Applied Catalysis B: Environmental . Aug2016, Vol. 190, p85-92. 8p. - Publication Year :
- 2016
-
Abstract
- Ag nanoparticles in a Yb 2 O 3 matrix catalyzed the direct decomposition of N 2 O to the elements. Our investigations included X-ray powder diffraction and electron microscopy; they revealed a remarkable dependence of the catalytic activity on the catalyst preparation method that influenced the size of Ag crystallites. Simple precipitation followed by calcination resulted in the formation of a catalyst with rather large Ag crystallites, which showed low activity. In contrast, thermal decomposition of the mixed-metal Ag–Yb coordination polymer provided the Ag/Yb 2 O 3 catalytic system with distinctly smaller Ag crystallites. The coordination-polymer derived catalyst exhibited much higher activity in the deN 2 O process at moderate temperature range 400–500 °C. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09263373
- Volume :
- 190
- Database :
- Academic Search Index
- Journal :
- Applied Catalysis B: Environmental
- Publication Type :
- Academic Journal
- Accession number :
- 113896382
- Full Text :
- https://doi.org/10.1016/j.apcatb.2016.02.062