Structure Characterization and Catalytic Properties of Cr_2O_3 Doped with MgO Supported on MgF_2

• Authors: J. Goslar , M. Wojciechowska , M. Zieliński , I. Tomska-Foralewska , W. Przystajko
• Languages of publication: EN

Abstracts

EN

A characterization of double oxide systems containing Cr_2O_3 doped with MgO and supported on MgF_2 was carried out. The catalysts were prepared by impregnation and co-impregnation methods and characterized by the Brunauer-Emmett-Teller method, EPR, and temperature programmed reduction. The results proved the interactions between supported oxides and the presence of spinel-like phase after treatment at 400ºC. Magnesium oxide clearly influences the catalytic activity as well as selectivity of chromium catalysts supported on MgF_2. The MgO-Cr_2O_3/MgF_2 systems were active and selective in the reaction of CO oxidation at the room temperature and in the dehydrogenation of cyclohexene.

Keywords

EN

76.30.Fc; 68.43.Fg; 82.65.+r

Discipline

• 76.30.Fc: Iron group (3d) ions and impurities (Ti-Cu)
• 68.43.Fg: Adsorbate structure (binding sites, geometry)
• 82.65.+r: Surface and interface chemistry; heterogeneous catalysis at surfaces(for temporal and spatial patterns in surface reactions, see 82.40.Np; see also 82.45.Jn Surface structure, reactivity and catalysis in electrochemistry; see also 68.43.-h Chemisorption/physisorption: adsorbates on surfaces)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 2
• Pages: 323-330

Dates

published

2005-08

received

2005-04-24

Contributors

author

J. Goslar

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

M. Wojciechowska

• Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

author

M. Zieliński

• Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

author

I. Tomska-Foralewska

• Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

author

W. Przystajko

• Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.108.323