Promising catalytic activity by non-thermal plasma synthesized SBA-15-supported metal catalysts in one-step plasma-catalytic methane conversion to value-added fuels

Chawdhury, Piu and Bhargavi, K. V. S. S. and Selvaraj, M. and Ch, Subrahmanyam (2020) Promising catalytic activity by non-thermal plasma synthesized SBA-15-supported metal catalysts in one-step plasma-catalytic methane conversion to value-added fuels. Catalysis Science & Technology, 10 (16). pp. 5566-5578. ISSN 2044-4753

Full text not available from this repository. (Request a copy)

Abstract

A non-thermal dielectric barrier discharge (DBD) plasma reactor was integrated with an M/SBA-15 (M = Pd, Pt, Ag and Au) catalyst, where metal reduction was achieved by H2 plasma treatment. Subsequently, the plasma-catalytic combination mode was tested for the methane partial oxidation reaction to liquid oxygenates, and the results were compared with the plasma-only system in terms of reactant conversion, energy efficiency and product distribution. The results from the characterization of the catalysts confirmed that the plasma treatment improved the surface characteristics of the catalysts and also modified or expanded the discharge on the catalytic surface. The plasma energetic species generally helped to flatten the metal nanoparticles over the support surface, which resulted in a better dispersion with the formation of smaller nanoparticles. A total liquid selectivity of 70% was achieved for the plasma-treated Pt/SBA-15-DBD system with almost 12% CH4 conversion compared to 58% total liquid at 7% CH4 conversion with the plasma-only system.

[error in script]

IITH Creators:

IITH Creators	ORCiD
Chawdhury, Piu	UNSPECIFIED
Bhargavi, K.V.S.S.	UNSPECIFIED
Selvaraj, M.	UNSPECIFIED
Ch, Subrahmanyam	https://orcid.org/0000-0002-2643-3854

Item Type:

Article

Uncontrolled Keywords:

Catalyst activity; Catalytic oxidation; Conversion efficiency; Dielectric devices; Dielectric materials; Electric discharges; Energy efficiency; Liquefied gases; Liquid methane; Metal nanoparticles; Methane; Plasma applications; Platinum compounds

Subjects:

Chemistry
Chemistry > Inorganic chemistry
Chemical Engineering
Chemical Engineering > Oils, fats, waxes, gases

Divisions:

Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

19 Jun 2021 04:42

Last Modified:

19 Jun 2021 04:42

URI:

http://raiithold.iith.ac.in/id/eprint/7943