Mellor, J.R., Palazov, A.N., Grigorova, B.S., Greyling, J.F., Reddy, K., Letsoalo, M.P. and Marsh, J.H. (2002) The application of supported gold catalysts to automotive pollution abatement. Catalysis Today, 72(1-2), pp. 145-156. (doi: 10.1016/S0920-5861(01)00488-6)
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Abstract
A gold based catalyst was formulated for use as a three-way catalyst in gasoline and diesel applications. The catalyst was comprised of gold supported on cobalt oxide, which acted as promoter. The gold–cobalt oxide clusters had particle sizes of approximately 40–140 nm, and were supported on a mechanical mixture of zirconia-stabilised ceria, zirconia and titania. Under gasoline conditions at sub-stoichiometric and super-stoichiometric oxygen concentrations, fresh catalysts displayed a hydrocarbon T50 of 240 °C, a CO T50 of 85 °C and a NOx T50 of 310 °C. After testing at temperatures of 500 °C over periods of up to 157 h, the activity of the catalyst decreased.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Marsh, Professor John |
| Authors: | Mellor, J.R., Palazov, A.N., Grigorova, B.S., Greyling, J.F., Reddy, K., Letsoalo, M.P., and Marsh, J.H. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Catalysis Today |
| Publisher: | Elsevier |
| ISSN: | 0920-5861 |
| ISSN (Online): | 1873-4308 |
| Published Online: | 18 December 2001 |
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