Effect of the Carbon Support and Conditions on the Carbothermal Synthesis of Cu-Molybdenum Carbide and Its Application on CO<sub>2</sub> Hydrogenation to Methanol
Ana Belén Dongil,
Elodie Blanco,
Juan José Villora-Picó,
Antonio Sepúlveda-Escribano,
Inmaculada Rodríguez-Ramos
Affiliations
Ana Belén Dongil
Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain
Elodie Blanco
Departamento de Ingeniería y Gestión de la Construcción, Pontificia Universidad Católica de Chile, Santiago 2530388, Chile
Juan José Villora-Picó
Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica—Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
Antonio Sepúlveda-Escribano
Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica—Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
Inmaculada Rodríguez-Ramos
Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain
The synthesis of methanol by carbon dioxide hydrogenation has been studied using copper-molybdenum carbides supported on high surface area graphite, reduced graphene oxide and carbon nanotubes. The synthesis conditions and the effect of the support were studied. The catalysts were prepared in situ using H2 or He at 600 °C or 700 °C. Both molybdenum carbide and oxycarbide were obtained. A support with less reactive carbon resulted in lower proportion of carbide obtained. The best results were achieved over a 5 wt.% Cu and 10 wt.% Mo on high surface area graphite that reached 96.3% selectivity to methanol.
