Thermal decomposition of Mg/V hydrotalcites and catalytic performance of the products in oxidative dehydrogenation reactions

Journal Article · Wed Nov 26 04:00:00 EST 2003 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2003.07.012· OSTI ID:20887950

Holgado, M J; Labajos, F M; Montero, M J.S.; Rives, V

Layered double hydroxides with the hydrotalcite-type structure containing Mg{sup 2+} and V{sup 3+} in the brucite-like layers, possessing different V contents, have been prepared and characterised by elemental chemical analysis, powder X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy and specific surface area and porosity assessment by nitrogen adsorption; thermal decomposition was studied by Differential Thermal Analysis and Thermogravimetric Analysis. The solids obtained after calcination at 800 deg. C were tested as catalysts for oxidative dehydrogenation of propane and n-butane. Results indicate that the relative amounts of Mg{sub 3}(VO{sub 4}) and MgO, depending on the V content in the starting hydrotalcite, determines the performance of the catalysts in oxidative dehydrogenation of propane and n-butane.

• OSTI ID: 20887950
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 14 Vol. 38; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
ADSORPTION
BUTANE
CALCINATION
CATALYSTS
DEHYDROGENATION
DIFFERENTIAL THERMAL ANALYSIS
FOURIER TRANSFORMATION
HYDROXIDES
INFRARED SPECTRA
MAGNESIUM IONS
MAGNESIUM OXIDES
OXIDATION
PERFORMANCE
POROSITY
PROPANE
SPECIFIC SURFACE AREA
THERMAL GRAVIMETRIC ANALYSIS
VANADATES
VANADIUM IONS
X-RAY DIFFRACTION