Low-temperature remediation of NO catalyzed by interleaved CuO nanoplates.

Auxilia, Francis Malar; Ishihara, Shinsuke; Mandal, Saikat; Tanabe, Toyokazu; Saravanan, Govindachetty; Ramesh, Gubbala V; Umezawa, Naoto; Hara, Toru et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

A copper(II)-oxide-based exhaust catalyst exhibits better activity than Pt- and Rh-nanoparticle catalysts in NO remediation at 175 °C. Following theoretical design, the CuO catalyst is rationally prepared; CuO nanoplates bearing a maximized amount of the active {001} facet are arranged in interleaved layers. A field test using a commercial gasoline engine demonstrates the ability of the catalyst to remove NO from the exhaust of small vehicles.