A new catalyst CeO2-ZrO2-Bi2O3 on La-stabilized γ-Al2O3 is prepared for advanced catalytic converters. The low-temperature redox activity of the catalyst (see figure), which is effective below 100 °C, has, to date, never been attained in conventional catalysts without help of precious metals.
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Imanaka et al. (2007) studied this question.
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