Properties of Cu-Co Composite Catalysts for Synthesis of Aliphatic Alcohols

• Autor(a) principal: Kulikova,Mayya V.
• Data de Publicação: 2021
• Outros Autores: Chudakova,Mariya V., Ivantsov,Mikhail I., Kuz’min,Alexei E., Krylova,Alla Yu., Maksimov,Anton L.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000200287
• topic: dispersed phase catalysis; composite materials; IR-Fourier spectroscopy; in situ magnetometry; nanosized Cu-Co catalysts; production of alcohols from synthesis gas

Cu-Co-containing cellulose-based carbon composite materials (Cu-Co/Cel) were formed by a matrix isolation method. Using X-ray diffraction (XRD), transmission electron microscopy (TEM), infrared-Fourier spectroscopy (IR-Fourier spectroscopy), and non-isothermal research methods, the physicochemical properties of the composites were established. The catalysts are nanosized particles distributed in a carbon matrix, containing fragments of a system of conjugated bonds (C=C-C=C) of various lengths. Cu-Co/Cel catalysts are active in the synthesis of alcohols from CO and H2, demonstrating high CO conversion (68%) and specific activity (17 mol CO gMe-1 s-1). Differences in the mechanism of alcohol formation from CO and H2 on cellulose-based composites and an oxide support (comparison catalyst) were shown by analyzing the distribution of synthesis products.