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Catalysts 2017, 7(12), 384; https://doi.org/10.3390/catal7120384

Catalytic Performance of Co3O4 on Different Activated Carbon Supports in the Benzyl Alcohol Oxidation

1
Grupo de Catálisis, Universidad del Cauca, Popayán 190001, Colombia
2
Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE (FIQ-UNL, CONICET), Santa Fe 3000, Argentina
3
Servicios Técnicos de Investigación, Facultad de Ciencias, Universidad de Alicante, E.03080 Alicante, Spain
4
Research Group in Environmental Catalysis and Renewable Energies, Facultad de Ciencias Básicas Sociales y Humanas, Politécnico Colombiano Jaime Isaza Cadavid, Medellín 050001, Colombia
5
Departamento IPH, Universidad A. Metropolitana—Iztapalapa, México DF 09340, Mexico
6
Institute de Chimie des Milieux et des Matériaux de Poitiers, Université de Poitiers, 86000 Poitiers, France
*
Author to whom correspondence should be addressed.
Received: 22 September 2017 / Revised: 7 October 2017 / Accepted: 7 October 2017 / Published: 12 December 2017
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Abstract

Co3O4 particles were supported on a series of activated carbons (G60, CNR, RX3, and RB3). Incipient wetness method was used to prepare these catalysts. The effect of the structural and surface properties of the carbonaceous supports during oxidation of benzyl alcohol was evaluated. The synthetized catalysts were characterized via IR, TEM, TGA/MS, XRD, TPR, AAS, XPS, and N2 adsorption/desorption isotherm techniques. Co3O4/G60 and Co3O4/RX3 catalysts have high activity and selectivity on the oxidation reaction reaching conversions above 90% after 6 h, without the presence of promoters. Catalytic performances show that differences in chemistry of support surface play an important role in activity and suggest that the presence of different ratios of species of cobalt and oxygenated groups on surface in Co3O4/G60 and Co3O4/RX3 catalysts, offered a larger effect synergic between both active phase and support increasing their catalytic activity when compared to the other tested catalysts. View Full-Text
Keywords: benzyl alcohol; oxidation; activated carbon; cobalt oxide; heterogeneous catalysts benzyl alcohol; oxidation; activated carbon; cobalt oxide; heterogeneous catalysts
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Cordoba, M.; Miranda, C.; Lederhos, C.; Coloma-Pascual, F.; Ardila, A.; Fuentes, G.A.; Pouilloux, Y.; Ramírez, A. Catalytic Performance of Co3O4 on Different Activated Carbon Supports in the Benzyl Alcohol Oxidation. Catalysts 2017, 7, 384.

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