A Better Catalytic Converter (IMAGE)

Washington State University

A Better Catalytic Converter

Caption

Researchers at WSU, PNNL and the University of New Mexico have developed a better catalyst for catalytic converters that change vehicle pollutants to relatively benign forms of nitrogen, carbon dioxide and water. The catalyst, which uses single atoms of platinum on a cerium oxide surface, is stable at the high exhaust temperatures of a working engine but is active at the lower "cold-start" temperatures of today's more efficient engines.

Credit

Cortland Johnson, PNNL

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