Reduction of nitric oxide by carbon monoxide over NiO, CuO, and ZnO catalysts


Por: Flores-Sanchez L.A., Quintana-Melgoza J.M., Olivas A., Avalos-Borja M.

Publicada: 1 abr 2015
Resumen:
NiO, CuO and ZnO catalysts were synthesized by thermal decomposition using Ni, Cu, and Zn salts as precursors. The materials were characterized by X-ray diffraction, energy dispersive spectroscopy, scanning electron microscopy, crystal size and surface area measurements. The catalysts were tested for NO reduction with CO. The NO reduction rate was in the range of (4.3 x 10(-12)-1.3 x 10(-8)) mol s(-1) g(-1), and its activation energy was within an interval of (41.8-83.7) kJ mol(-1) K-1. The catalysts showed the following decreasing order of activity: CuO > NiO > ZnO. Catalyst CuO is a better catalyst than NiO and ZnO and achieved 100 % NO conversion at 275 A degrees C with 94 % selectivity to N-2.

Filiaciones:
Flores-Sanchez L.A.:
 UABC, Fac Ciencias Quim & Ingn, Tijuana 22390, BC, Mexico

 UABC, Parque Industrial Internacional Tijuana, Tijuana, B.C. CP. 22390, Mexico

Quintana-Melgoza J.M.:
 UABC, Fac Ciencias Quim & Ingn, Tijuana 22390, BC, Mexico

 UABC, Parque Industrial Internacional Tijuana, Tijuana, B.C. CP. 22390, Mexico

Olivas A.:
 UNAM, Ctr Nanociencias & Nanotecnol, Ensenada 22860, Baja California, Mexico

 Centro de Nanociencias y Nanotecnología - UNAM, Km. 107 Carretera Tijuana-Ensenada, Ensenada, B.C. CP. 22860, Mexico

Avalos-Borja M.:
 UNAM, Ctr Nanociencias & Nanotecnol, Ensenada 22860, Baja California, Mexico

 Centro de Nanociencias y Nanotecnología - UNAM, Km. 107 Carretera Tijuana-Ensenada, Ensenada, B.C. CP. 22860, Mexico

 División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, S.L.P., México
ISSN: 18785190
Editorial
Springer Netherlands, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, Países Bajos
Tipo de documento: Article
Volumen: 114 Número: 2
Páginas: 597-609
WOS Id: 000351177700017