A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine-Promoted Epoxidation of Ethylene

Ramirez, A. ; Hueso, J. L. ; Suarez, H. ; Mallada, R. (Universidad de Zaragoza) ; Ibarra, A. ; Irusta, S. (Universidad de Zaragoza) ; Santamaria, J. (Universidad de Zaragoza)

Resumen: The selective oxidation of ethylene to ethylene epoxide is highly challenging as a result of competing reaction pathways leading to the deep oxidation of both ethylene and ethylene oxide. Herein we present a novel catalyst based on silver and copper oxide with an excellent response in the selective oxidation pathway towards ethylene epoxide. The catalyst is composed of different silver nanostructures dispersed on a tubular copper oxide matrix. This type of hybrid nanoarchitecture seems to facilitate the accommodation of chlorine promoters, leading to high yields at low reaction temperatures. The stability after the addition of chlorine promoters implies a substantial improvement over the industrial practice: a single pretreatment step at ambient pressure suffices in contrast with the common practice of continuously feeding organochlorinated precursors during the reaction.

Idioma: Inglés

DOI: 10.1002/anie.201603886

Año: 2016

Publicado en: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55, 37 (2016), 11158-11161
ISSN: 1433-7851

Factor impacto JCR: 11.994 (2016)

Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 13 / 166 = 0.078 (2016) - Q1 - T1

Factor impacto SCIMAGO: 5.953 - Chemistry (miscellaneous) (Q1) - Catalysis (Q1)

Financiación: info:eu-repo/grantAgreement/EUR/ERC/HECTOR-267626

Tipo y forma: Congress (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)