Bi-metal Cu–Co from LaCo1−xCuxO3 perovskite supported on zirconia for the synthesis of higher alcohols

A new scheme for designing and preparing the catalyst for higher alcohol synthesis was presented in this work. According to the scheme, a series of zirconia-supported LaCo1−xCuxO3 catalysts were prepared by impregnating ZrO2 with a mixed solution composed of ions of copper, cobalt and lanthanum and...

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Bibliographic Details
Published in:Fuel processing technology 2014-12, Vol.128, p.289-296
Main Authors: Liu, Guilong, Geng, Yuxia, Pan, Dongming, Zhang, Yuan, Niu, Ting, Liu, Yuan
Format: Article
Language:English
Subjects:
Bimetal nanoparticle
Catalysis
Catalytic reactions
Chemistry
Cobalt
Copper
Exact sciences and technology
General and physical chemistry
Higher alcohols
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zirconia
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Summary:A new scheme for designing and preparing the catalyst for higher alcohol synthesis was presented in this work. According to the scheme, a series of zirconia-supported LaCo1−xCuxO3 catalysts were prepared by impregnating ZrO2 with a mixed solution composed of ions of copper, cobalt and lanthanum and citric acid. The catalysts were characterized by using XRD, TEM, BET, H2-TPR and XPS techniques. After reduction, the catalyst precursor favored to form nanoparticles of Co–Cu alloy highly dispersed on ZrO2 and modified with La2O3. The metal nanoparticles of Cu–Co alloy together with ZrO2 modified with La2O3 contributed to the excellent selectivity of higher alcohols as well as the very good stability. Structure evolutions of LaCo1−xCuxO3/ZrO2 catalysts treated at different conditions. [Display omitted] •A new scheme for designing and preparing catalysts is presented.•Co–Cu alloy nanoparticles can be highly dispersed on La2O3-doped ZrO2.•The catalysts show excellent performance for the higher alcohol synthesis.
ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2014.07.010