Enhancing Methane Aromatization Performance by Reducing the Particle Size of Molybdenum Oxide

Efficient use of natural gas to produce aromatics is an attractive subject; the process requires catalysts that possess high-performance active sites to activate stable C–H bonds. Here, we report a facile synthetic strategy to modify HMCM-49 with small molybdenum oxide nanoparticles. Due to the high...

Descripción completa

Detalles Bibliográficos
Autores principales: Hu, Jing, Liu, Jinghai, Liu, Jinglin, Li, Yangyang, Li, Peihe, Wang, Yin, Guan, Jingqi, Kan, Qiubin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599475/
https://www.ncbi.nlm.nih.gov/pubmed/33050336
http://dx.doi.org/10.3390/nano10101991
Descripción
Sumario:Efficient use of natural gas to produce aromatics is an attractive subject; the process requires catalysts that possess high-performance active sites to activate stable C–H bonds. Here, we report a facile synthetic strategy to modify HMCM-49 with small molybdenum oxide nanoparticles. Due to the higher sublimability of nano-MoO(3) particles than commercial MoO(3), they more easily enter into the channels of HMCM-49 and associate with Brønsted acid sites to form active MoC(x)-type species under calcination and reaction conditions. Compared with commercial MoO(3) modified MCM-49, nano-MoO(3) modified MCM-49 exhibits higher methane conversion (13.2%), higher aromatics yield (9.1%), and better stability for the methane aromatization reaction.

Ejemplares similares