Cu–Co Alloy Nano‐particles supported on SiO2 and modified by La and Y for Ethanol Synthesis from Syngas. Issue 25 (1st September 2017)

• Record Type: Journal Article
• Authors: Hong, Ying; Yang, Qilei; Kang, Na; Liu, Guilong; Ma, Zhi; Liu, Yuan
• Is Part Of: ChemistrySelect. Volume 2:Issue 25(2017)
• Page Start: 7580
• Page End: 7589
• Publication Date: 2017-09-01
• Subjects: Bimetallic copper and cobalt -- Ethanol -- Higher alcohol synthesis -- Perovskite-type oxide -- Syngas; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201701742
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Cu−Co based catalysts for ethanol synthesis (ES) directly from syngas requires that copper and cobalt should be in alloy state or in close contact with each other, the chemical state of the bimetallic Cu−Co should be tailored by more than one additives and the group composed of Cu−Co and the additives should be loaded on a support with high surface area. In this work, a strategy for design and preparing such kind of complex catalysts was proposed, by means of loading nano crystallites of La1‐x Yx Co1‐y Cuy O3 with perovskite phase on SiO2 and then reducing La1‐x Yx Co1‐y Cuy O3 /SiO2 . In a nano crystallite of La1‐x Yx Co1‐y Cuy O3, the ions of copper and cobalt are uniformly mixed at the atomic level and confined in the nano space, favoring the interaction between the reduced products of Cu, Co, La2 O3 and Y2 O3 . Thus, prepared catalyst showed very good catalytic performance for ES. This preparation strategy should be extendable. Abstract : In this work, a strategy for design and preparing such kind of complex catalysts was proposed, by means of loading nano crystallites of La1‐x Yx Co1‐y Cuy O3 with perovskite phase on SiO2 . In a nano crystallite of La1‐x Yx Co1‐y Cuy O3, the ions of copper and cobalt are uniformly mixed at the atomic level and confined in the nano space, favoring the interaction between the reduced products of Cu, Co, La2 O3 and Y2 O3 . Thus, prepared catalyst showed very good catalytic performance for ethanol synthesis.