Characterization of Al-Zr, Al-Hf and Al-Ce-pillared vermiculites by X-ray photoelectron spectroscopy

Al capping layers for nondestructive x-ray photoelectron spectroscopy analyses of transition-metal nitride thin films

Synthesis, Characterization and Application of Al,Fe-Pillared Clays

Al,Fe-pillared clay was synthesized from domestic clay from Bogovina according to a common procedure: grinding, sieving, Na exchange, pillaring, drying and calcination. Two synthesized samples differing only in calcining conditions were prepared. Phase composition and textural properties of the starting clay and synthesized pillared clays were characterized using X-ray diffraction and physisorp...

Influence of Operational Parameters and Kinetic Modelling of Catalytic Wet Air Oxidation of Phenol by Al/Zr Pillared Clay Catalyst

Single and mixed oxide Al/Zr-pillared clay (Al/Zr-PILC) catalysts were synthesized and tested for catalytic wet air oxidation (CWAO) of aqueous phenol solution under milder conditions, in a semi-batch reactor. The catalysts were synthesized from natural bentonite clay using ultrasonic treatment during the aging and intercalation steps and were characterized <...

Precipitation evolution in Al–Zr and Al–Zr–Ti alloys during aging at 450–600 C

The transformation of Al3Zr (L12) and Al3(Zr1 xTix) (L12) precipitates to their respective equilibrium D023 structures is investigated in conventionally solidified Al–0.1Zr and Al–0.1Zr–0.1Ti (at.%) alloys aged isothermally at 500 C or aged isochronally in the range 300– 600 C. Titanium additions delay neither coarsening of the metastable L12 precipitates nor their transformation to the D023 st...

Synthesis and Characterization of Polyoxovanadate-Pillared Zn-Al Layered Double Hydroxides: An X-ray Absorption and Diffraction Study

Departamento de Quı́mica Inorgánica e Ingenierı́a Quı́mica, Facultad de Ciencias, Universidad de Córdoba, 14004-Córdoba, Spain, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, England, Departamento de Quı́mica Inorgánica e Instituto de Ciencia de Materiales, Universidad de Sevilla-CSIC, Sevilla, Spain, and Departamento de Quı́mica Inorgánica, Universidad de Salam...