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Pillaring of a Layered Titanate With Alumina: Effect of Hydrolysis Solution

Published online by Cambridge University Press:  15 February 2011

F. Kooli ,
T. Sasaki ,
V. Rives  and
M. Watanabe
F. Kooli
Affiliation:
National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba, 305-0044, Japan
T. Sasaki
Affiliation:
National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba, 305-0044, Japan
V. Rives
Affiliation:
Departamento de Quimica Inorganica, Universidad de Salamanca, 37008 Salamanca, Spain
M. Watanabe
Affiliation:
National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba, 305-0044, Japan
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Abstract

A layered titanate with a lepidocrocite-type structure has been pillared with Al13 Keggin ions to prepare a porous and high-surface-area material. Pillaring was achieved by ion exchange of hexylammonium (HA-Ti) or tetrabuthylammonium (TBA-Ti) intercalated titanates with Keggin Al13 complex. The thermal stability of the Al13 intercalates depended on the amount of aluminum incorporated. The surface area and porosity can be tailored by controlling the amount of aluminum uptake and by the nature of base used to prepare the aluminium pillaring solution. In addition, the material derived from HA-Ti exhibited a sharp pore size distribution with an average diameter of 2 nm, while the pillared product obtained from TBA-Ti showed mostly a broad mesoporous distribution with an average pore diameter of 4 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 549: Symposium FF – Advanced Catalytic Materials - 1998 , 1998 , 79
Copyright
Copyright © Materials Research Society 1999

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