EPR Characterization of Active Sites on the Surface of Operating Catalysts | Sciact - CRIS-system of Boreskov Institute of Catalysis

EPR Characterization of Active Sites on the Surface of Operating Catalysts Conference Abstracts

Conference

EuropaCat-XIII: 13th European Congress on Catalysis
27-31 Aug 2017 , Florence

Source

13th European Congress on Catalysis
Compilation, 2017.

Output data

Year: 2017, Article number : SS30.7, Pages count : 2

Authors

Bedilo Alexander F. ^1,2 , Shuvarakova Ekaterina I. ^1,2 , Chesnokov Vladimir V. ¹ , Kenzin Roman M. ¹

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk,630090, Russia
2	Novosibirsk Institute of Technology, Kosygin Russian State University, Novosibirsk,630099, Russia

Funding (1)

Russian Foundation for Basic Research

15-03-08070

An original approach was developed for characterization of operating catalysts by EPR. Weak electronacceptor sites present on the catalyst surface during 1-chlorobutane dehydrochlorination over nanocrystalline MgO, Al2O3 and ZrO2 samples were characterized by EPR using perylene as a spin probe. It is demonstrated that electron-acceptor sites can exist on the surface of operating catalysts. It is shown that the concentration of weak elector-acceptor sites correlates with the catalytic activity. The obtained results indicate that weak electron-acceptor sites tested using perylene may be the active sites accounting for 1-chlorobutane dehydrochlorination in the active state of the catalysts. The developed method can be used to monitor changes in the concentration of electron-acceptor sites as well other types of active sites that can be characterized by EPR using appropriate spin probes on the catalyst surface during any catalytic reaction.

Bedilo A.F. , Shuvarakova E.I. , Chesnokov V.V. , Kenzin R.M.
EPR Characterization of Active Sites on the Surface of Operating Catalysts
In compilation 13th European Congress on Catalysis. 2017. – C.116-117.

No identifiers

Пока нет цитирований