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Study of Large OSC Materials (Ln2O2SO4) on the Basis of Sulfur Redox Reaction
Technical Paper
2009-01-1071
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Three-way catalyst shows high performance under stoichiometric atmosphere. The CeO2-ZrO2 based materials (CZ) are added as a buffer of O2 concentration. To improve the catalyst performance the larger O2 storage capacity (OSC) are needed. Theoretically, the sulfur oxidation-reduction reaction moves oxygen 8 times larger than cerium. We focused on this phenomenon and synthesized Ln2O2SO4 as a new OSC material. The experimental result under model gas shows that the OSC of Ln2O2SO4 is 5 times lager than CZ.
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Miura, M., Hirata, H., Ishibashi, K., and Machida, M., "Study of Large OSC Materials (Ln2O2SO4) on the Basis of Sulfur Redox Reaction," SAE Technical Paper 2009-01-1071, 2009, https://doi.org/10.4271/2009-01-1071.Also In
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