PREPARATION AND PHYSICO-CHEMICAL CHARACTERIZATION OF VANADIUM-DOPED PILLARED MONTMORILLONITES

In: Geologica Carpathica Clays, vol. 2, no. 1

Krzysztof Bahranowski - Ewa M. Serwicka

Detaily:

Rok, strany: 1993, 17 - 20

O článku:

Procedures leading to preparation of vanadium-doped alumina-pillared montmorillonites are described and physico-chemical characterization (chemical analysis, XRD, BET, DTA and ESR) of the products is provided. Results show that introduction of vanadium into the pillared montmorillonites leads to a rigid association of the dopant with pillars, irrespective of the mode of preparation. The XRD and DTA data indicate that oligocationic species formed during "co-pillaring" differ structurally from the standard Al₁₃ ions. It is argued that blocking of the interlayer may occur on "co-pillaring" due to the more dense packing of oligocations, brought about by a decrease in their average charge.

Ako citovať:

ISO 690:

Bahranowski, K., M. Serwicka, E. 1993. PREPARATION AND PHYSICO-CHEMICAL CHARACTERIZATION OF VANADIUM-DOPED PILLARED MONTMORILLONITES. In Geologica Carpathica Clays, vol. 2, no.1, pp. 17-20.

APA:

Bahranowski, K., M. Serwicka, E. (1993). PREPARATION AND PHYSICO-CHEMICAL CHARACTERIZATION OF VANADIUM-DOPED PILLARED MONTMORILLONITES. Geologica Carpathica Clays, 2(1), 17-20.