Platinum group metal (PGM) catalysts are the current standard for control of pollutants in automotive exhaust streams. In spite of their high cost, PGM catalysts exhibit low catalytic activities for CO oxidation at low temperatures (&lt;200 °C) because of inhibition by hydrocarbons in exhaust streams. Here we present nanostructured ternary and high entropy oxide catalysts that potentially outperform synthesized and commercial PGM catalysts for CO oxidation in simulated exhaust streams while showing less signs of inhibition by hydrocarbons. The synthesis strategies toward various nanostructured multi-component oxide catalysts will be discussed. In conclusion, these nanostructured oxide catalysts show great potential as a low-cost component for low temperature exhaust streams.

Multi-component oxide catalysts for low-temperature CO oxidation

2019 Spring National Meeting

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