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Synthesis and structural characterisation of CsCoPO4-ABW

Synthesis and structural characterisation of CsCoPO4-ABW
Synthesis and structural characterisation of CsCoPO4-ABW
The cobalt phosphate, CsCoPO4, possessing the zeolite ABW framework topology has been synthesised using a solid state route. Rietveld refinement from powder neutron diffraction data has shown the material to be a direct structural analogue of CsZnPO4 polymorph III. The framework is made up of alternating cobaltate and phosphate tetrahedra sharing vertices with caesium counter cations located in the channels formed. The presence of Co(II) tetrahedra, confirmed by UV visible spectroscopy, is responsible for the intense blue colour of the material. DTA analysis combined with preliminary variable temperature powder X-ray diffraction has shown the presence of a phase transition at approximately 171 degrees C to an orthorhombic unit cell probably isostructural with CsZnPO4 polymorph II.
oxidation, catalyst
1472-7773
555-558
Henry, P. F.
329d2dd7-c37b-44d9-9fc1-6583b36deed2
Hughes, E. M.
d0252f20-fd42-4703-8f1c-cec34a41bda5
Weller, M. T.
186aa097-9fd5-4c08-88a1-5359c3318c85
Henry, P. F.
329d2dd7-c37b-44d9-9fc1-6583b36deed2
Hughes, E. M.
d0252f20-fd42-4703-8f1c-cec34a41bda5
Weller, M. T.
186aa097-9fd5-4c08-88a1-5359c3318c85

Henry, P. F., Hughes, E. M. and Weller, M. T. (2000) Synthesis and structural characterisation of CsCoPO4-ABW. Journal of the Chemical Society, Dalton Transactions, (4), 555-558. (doi:10.1039/a906478h).

Record type: Article

Abstract

The cobalt phosphate, CsCoPO4, possessing the zeolite ABW framework topology has been synthesised using a solid state route. Rietveld refinement from powder neutron diffraction data has shown the material to be a direct structural analogue of CsZnPO4 polymorph III. The framework is made up of alternating cobaltate and phosphate tetrahedra sharing vertices with caesium counter cations located in the channels formed. The presence of Co(II) tetrahedra, confirmed by UV visible spectroscopy, is responsible for the intense blue colour of the material. DTA analysis combined with preliminary variable temperature powder X-ray diffraction has shown the presence of a phase transition at approximately 171 degrees C to an orthorhombic unit cell probably isostructural with CsZnPO4 polymorph II.

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Published date: 2000
Keywords: oxidation, catalyst

Identifiers

Local EPrints ID: 18877
URI: http://eprints.soton.ac.uk/id/eprint/18877
ISSN: 1472-7773
PURE UUID: e8bced5d-23b8-4630-a26e-f8e40c949714

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Date deposited: 20 Dec 2005
Last modified: 15 Mar 2024 06:08

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Contributors

Author: P. F. Henry
Author: E. M. Hughes
Author: M. T. Weller

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