Low-temperature remediation of NO catalyzed by interleaved CuO nanoplates.
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.
National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Crystal Growth Centre, Anna University, Chennai, Tamil Nadu, 600-025, India.
Francis Malar
FM
Auxilia
Shinsuke
S
Ishihara
Saikat
S
Mandal
Toyokazu
T
Tanabe
Govindachetty
G
Saravanan
Gubbala V
GV
Ramesh
Naoto
N
Umezawa
Toru
T
Hara
Ya
Y
Xu
Shunichi
S
Hishita
Yusuke
Y
Yamauchi
Arivuoli
A
Dakshanamoorthy
Jonathan P
JP
Hill
Katsuhiko
K
Ariga
Hideki
H
Abe
catalysts; copper oxide; crystal engineering; environmental remediation; surface science