Cobalt Oxide Catalysts on Commercial Supports for N2O Decomposition.

0474170 - ÚCHP 2018 RIV DE eng J - Článek v odborném periodiku
Klegová, A. - Pacultová, K. - Fridrichová, D. - Volodarskaja, A. - Kovanda, J. - Jirátová, Květa
Cobalt Oxide Catalysts on Commercial Supports for N2O Decomposition.
Chemical Engineering & Technology. Roč. 40, č. 5 (2017), s. 981-990. ISSN 0930-7516. E-ISSN 1521-4125.
[International Congress of Chemical and Process Engineering CHISA 2016 /22./and the 19th Conference PRES 2016. Prague, 27.08.2016-31.08.2016]
Grant CEP: GA ČR GA14-13750S
Institucionální podpora: RVO:67985858
Klíčová slova: N2O decomposition * cobalt oxide * shaped catalyst
Obor OECD: Chemical process engineering
Impakt faktor: 1.588, rok: 2017

Co3O4 oxide catalysts prepared on different commercial supports, namely, TiO2, Al2O3, and Mg-Al mixed oxides with various Mg and Al concentrations, were characterized by atomic absorption spectrometry, Brunauer-Emmett-Teller method, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and H2 temperature-programmed reduction, tested for N2O decomposition, and compared with bulk Co3O4. In spite of the fact that Co3O4/70Mg30Al also contained hardly reducible compounds, it possessed the highest catalytic activity, probably due to the presence of active sites with easier reducibility and better dispersion of the active phase on the support contributing to a higher number of active sites. The conversion over Co3O4-supported tablets is comparable with that of the same catalyst bed of bulk Co3O4 tableted catalyst.
Trvalý link: http://hdl.handle.net/11104/0271279