Conference item

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 images, thus a quantitative comparison between the different, highly irregular, industrial catalyst samples is made feasible.

Publication status:: Published

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APA Style

Weller, S., Nellist, P., Gillies, J., & Palmer, R. (2001). TEM investigations of industrial platinum on graphite catalyst systems: Image processing and particle morphology. Conference of the Electron-Microscopy-and Analysis-Group, 168, 421–424.

MLA Style

Weller, S, et al. “TEM Investigations of Industrial Platinum on Graphite Catalyst Systems: Image Processing and Particle Morphology.” Conference of the Electron-Microscopy-and Analysis-Group, no. 168, 2001, pp. 421–24.

Chicago Style

Weller, S, P Nellist, J Gillies, and R Palmer. 2001. “TEM Investigations of Industrial Platinum on Graphite Catalyst Systems: Image Processing and Particle Morphology.” In Conference of the Electron-Microscopy-and Analysis-Group, 421–24.
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Authors

+ Weller, S More by this author

Role:: Author

+ Nellist, P More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Materials
Role:: Author

+ Gillies, J More by this author

Role:: Author

+ Palmer, R More by this author

Role:: Author

Journal:: ELECTRON MICROSCOPY AND ANALYSIS 2001 More from this journal
Issue:: 168
Pages:: 421-424
Publication date:: 2001-01-01
Event title:: Conference of the Electron-Microscopy-and Analysis-Group
ISSN:: 0951-3248
ISBN:: 0750308125

Pubs id:: pubs:12577
UUID:: uuid:11362033-716a-4b10-b03c-e3eaff85f4f7
Local pid:: pubs:12577
Source identifiers:: 12577
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_11362033716a4b10b03ce3eaff85f4f7

Terms of use

Copyright date:: 2001

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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