Activated carbon aerogel supported copper catalysts for the hydrogenation of methyl acetate to ethanol: effect of KOH activation. (31st May 2019)

• Record Type: Journal Article
• Authors: Hou, Xiaoxiong; Zhao, Jinxian; Liu, Junjie; Han, Yahong; Pei, Yongli; Ren, Jun
• Is Part Of: New journal of chemistry. Volume 43:Number 24(2019)
• Page Start: 9430
• Page End: 9438
• Publication Date: 2019-05-31
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c9nj01434a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Methyl acetate (MA) hydrogenation is crucial for indirect ethanol synthesis through syngas (CO + H2 ). Abstract : Methyl acetate (MA) hydrogenation is crucial for indirect ethanol synthesis through syngas (CO + H2 ). In our work, activated carbon aerogel supported copper (Cu-ACA) catalysts have been prepared by a conventional impregnation method. The surface area and functional groups of the ACA soared after KOH activation. The highest surface area achieved for the ACA was 2562 m 2 g −1 . The anchoring effect of micropores and external oxygen-containing groups (OCGs) significantly enhanced the metal–support interaction in catalysts, facilitating the high dispersion of Cu and an enhancement in surface Cu + species, both of which improved the catalytic activity of catalysts. Cu-ACA-A4 showed the most outstanding catalytic performance, with a MA conversion of 95.2% and an ethanol selectivity of 62.2%, close to the carbon equilibrium selectivity of 66.7%.