Oxygen vacancy-rich mesoporous silica KCC-1 for CO2 methanation

• Main Authors: Hamid, M. Y. S., Firmansyah, M. L., Triwahyono, S., Jalil, A. A., Mukti, R. R., Febriyanti, E., Suendo, V., Setiabudi, H. D., Mohamed, M., Nabgan, W.
• Format: Article
• Published: Elsevier B.V. 2017
• Subjects: TP Chemical technology
• Online Access: http://eprints.utm.my/id/eprint/75312/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008155990&doi=10.1016%2fj.apcata.2016.12.023&partnerID=40&md5=1f531419ed6fcc7d074a716964ccd3ff
• Institution: Universiti Teknologi Malaysia

Mesoporous silica KCC-1 was successfully synthesized by microemulsion system coupled with microwave-assisted hydrothermal method. Mesoporous silica KCC-1 exhibited spherical morphology surrounded with dendritic fiber with the particle size of 200–400 nm and BET surface area of 773 m2/g. Mesoporous silica KCC-1 has significantly higher number of basicity and oxygen vacancy than those of MCM-41 and SiO2which directly correlated with the catalytic performance of the catalyst. The activity of mesoporous silica KCC-1 in CO2methanation is five-fold higher than MCM-41 with the yield of CH4reached 38.9% at 723 K.