@article {48188,
	title = {Influence of support textural property on CO2 to methane activity of Ni/ SiO2 catalysts},
	journal = {Applied Catalysis B-Environmental},
	volume = {317},
	year = {2022},
	month = {NOV},
	pages = {121692},
	type = {Article},
	abstract = {<p>
	In this work, we elucidated the role of physicochemical textural properties of inert support on the catalyst ac-tivity by impregnating Ni on ordered mesoporous silica (SBA-15 and MCM-41) and non-mesoporous silica (nMPS). The catalyst Ni/SBA-15 exhibited the best CO2 conversion (83\%) and product selectivity (99.9 \%) followed by Ni/MCM-41 and the least by Ni/nMPS. The difference in the nature of the catalyst, degree of nanoparticle distribution and nanoparticle encapsulation by different silica support were studied by N2 adsorption-desorption and X-ray photoelectron spectroscopy (XPS) experiments. The Operando Diffused Reflec-tance Infrared Fourier Transform Spectroscopy were used to understand the variance in reaction pathway which is accredited to the textural properties of the support. The SBA-15 supported Ni catalyst followed dissociative CO pathway while MCM-41 and nMPS reacted through associative formate mechanism as major pathway. These findings provide a novel perspective on CO2 hydrogenation over Ni-silica, allowing us to tune both activity and selectivity.</p>
},
	keywords = {CO2 methanation, DRIFTS, Mesoporous silica support, Textural properties},
	issn = {0926-3373},
	doi = {10.1016/j.apcatb.2022.121692},
	author = {Cherevotan, Arjun and Ray, Bitan and Churipard, Sathyapal R. and Kaur, Komalpreet and Gautam, Ujjal K. and Vinod, Chathakudath P. and Peter, Sebastian C.}
}
