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TEM investigations of industrial platinum on graphite catalyst systems: Image processing and particle morphology

Abstract:

Industrial platinum on graphite catalysts, prepared by salt deposition from aqueous solution, have been examined using transmission electron microscopy. The resulting micrographs show a mixture of dendritic metal islands, and smaller (1-4nm diameter) spherical islands. An image processing technique has been developed to subtract the graphite backgrounds, allowing the images to be made binary. The dendricity of a particle is then characterised by the formfactor, a measure derived from the TEM ...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
Issue:
168
Pages:
421-424
Publication date:
2001-01-01
ISSN:
0951-3248
URN:
uuid:11362033-716a-4b10-b03c-e3eaff85f4f7
Source identifiers:
12577
Local pid:
pubs:12577
ISBN:
0-7503-0812-5

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