Boron-induced controlled synthesis of Co-nano particles over Bx(CN)y matrix for CO hydrogenation in aqueous media

Shee, Debaprasad (2023) Boron-induced controlled synthesis of Co-nano particles over Bx(CN)y matrix for CO hydrogenation in aqueous media. Fuel Processing Technology, 244. p. 107719. ISSN 0378-3820

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Abstract

Bx(CN)y supported cobalt nanoparticles have been synthesized by regulating the ratios of melamine and boric acid precursors. The carbonization step is adequate to generate the desired controlled-sized cobalt particles at an auto-reduced state that can eliminate the requirement of promotors (e.g., Pt) for the hydrogen-spillover effect. The presence of nitrogen in support enhances the dispersion of cobalt particles by providing sites for cobalt to nucleate and grow due to the interaction between cobalt and Π electrons from the sp2-N center. Boron in the catalyst system significantly stabilizes the catalyst, thus improving its lifetime. However, the excess of boron promotes the aggregation of cobalt particles; therefore, optimal boron loading is preferable. Moreover, the binding energy calculation of Co6 over the B-doped and undoped C3N4 surface computed through DFT studies shows a reduction in metal-support interaction with the addition of boron, which leads to the aggregation of the cobalt particles with high boron. Overall, the catalyst with the optimized boron and nitrogen-containing support-stabilized cobalt particles is highly efficient in the aqueous phase Fischer-Tropsch synthesis.

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IITH Creators:

IITH Creators	ORCiD
Shee, Debaprasad	https://orcid.org/0000-0002-3503-8098

Item Type:

Article

Uncontrolled Keywords:

Aqueous phase FT synthesis; BCN support; Carbonization; Support stabilized Co-NPs; Agglomeration; Binding energy; Boric acid; Carbonization; Catalysts; Cobalt; Fischer-Tropsch synthesis; Nanoparticles; Nitrogen; Aqueous phase FT synthesis; Aqueous phasis; BCN support; Carbonisation; Cobalt particles; Controlled synthesis; FT synthesis; Nanoparti-cles; Support stabilized co-NP; ]+ catalyst; Boron

Subjects:

Chemical Engineering
Chemical Engineering > Technology of industrial chemicals

Divisions:

Department of Chemical Engineering

Depositing User:

Mr Nigam Prasad Bisoyi

Date Deposited:

12 Nov 2023 10:52

Last Modified:

12 Nov 2023 10:52

URI:

http://raiithold.iith.ac.in/id/eprint/11745