Browse Publications Technical Papers 1999-01-0268
1999-03-01

High Cell Density and Thin Wall Substrate for Higher Conversion Ratio Catalyst 1999-01-0268

Although air pollution has mitigated since the introduction of exhaust emission regulations, further reduction of it especially in the metropolitan areas is anticipated. An effective way to resolve this issue is to improve the catalyst performance. Of many approaches, improving substrate is one promising way to achieve this goal. Results of applying high cell density and light- weight substrates, coupled with high precious metal content, are discussed theoretically and verified experimentally here. The significant improvements made in the low temperature activity and warmed-up conversions by increasing geometrical surface areas and lowering thermal mass of high cell density substrates are described.

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