View in EDS

Size effect of the carbon-supported bimetallic Fe-Co nanoparticles on the catalytic activity in the Fischer-Tropsch synthesis.

Saved in:
Bibliographic Details
Title: Size effect of the carbon-supported bimetallic Fe-Co nanoparticles on the catalytic activity in the Fischer-Tropsch synthesis.
Authors: Vasilev, Andrey A.1,2 (AUTHOR) raver.vasiljev@mail.ru, Ivantsov, Mikhail I.1 (AUTHOR), Dzidziguri, Ella L.2 (AUTHOR), Efimov, Mikhail N.1 (AUTHOR), Muratov, Dmitry G.1 (AUTHOR), Kulikova, Maya V.1 (AUTHOR), Zhilyaeva, Natalia A.1 (AUTHOR), Karpacheva, Galina P.1 (AUTHOR)
Source: Fuel (0016-2361). Feb2022:Part C, Vol. 310, pN.PAG-N.PAG. 1p.
Subjects: Catalytic activity, Fischer-Tropsch process, Nanoparticle size, Metal nanoparticles, Nanoparticles, Organic conductors
Abstract: [Display omitted] • Fe-Co nanoparticles of 5–14 nm supported on chitosan-derived carbon were prepared. • FTS was conducted without pre-reduction of the catalysts. • 10 nm Fe-Co nanoalloys showed a high specific activity (126 μmol CO /(g Fe-Co ·s)). • FTS activity and selectivity strongly depend on the Fe-Co nanoparticle size. Carbon-supported bimetallic Fe-Co nanocatalysts with different particle sizes have been synthesized by one-pot method involving simultaneous metal nanoparticles formation and chitosan carbonization. The Fe-Co particle size has been found to vary from 5 to 14 nm depending on the amount of metal loaded in the polymer precursor. For the first time, the size effect of Fe-Co alloy nanoparticles on the specific catalyst activity, yield and selectivity of the products of the Fischer-Tropsch synthesis has been studied. It has been revealed that smaller size of the Fe-Co nanoparticles allows to achieve the maximum selectivity towards C 5+ hydrocarbons at lower reaction temperature. The catalyst with the Fe-Co average particle size of 10 nm has been demonstrated the highest specific activity (per unit mass) of 126 μmol CO /(g Fe-Co ·s). The structure of the Fe-Co bimetallic nanoparticles formed in the composites with different initial metal loading was studied and reviewed for details by XRD analysis. [ABSTRACT FROM AUTHOR]
Copyright of Fuel (0016-2361) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:[Display omitted] • Fe-Co nanoparticles of 5–14 nm supported on chitosan-derived carbon were prepared. • FTS was conducted without pre-reduction of the catalysts. • 10 nm Fe-Co nanoalloys showed a high specific activity (126 μmol CO /(g Fe-Co ·s)). • FTS activity and selectivity strongly depend on the Fe-Co nanoparticle size. Carbon-supported bimetallic Fe-Co nanocatalysts with different particle sizes have been synthesized by one-pot method involving simultaneous metal nanoparticles formation and chitosan carbonization. The Fe-Co particle size has been found to vary from 5 to 14 nm depending on the amount of metal loaded in the polymer precursor. For the first time, the size effect of Fe-Co alloy nanoparticles on the specific catalyst activity, yield and selectivity of the products of the Fischer-Tropsch synthesis has been studied. It has been revealed that smaller size of the Fe-Co nanoparticles allows to achieve the maximum selectivity towards C 5+ hydrocarbons at lower reaction temperature. The catalyst with the Fe-Co average particle size of 10 nm has been demonstrated the highest specific activity (per unit mass) of 126 μmol CO /(g Fe-Co ·s). The structure of the Fe-Co bimetallic nanoparticles formed in the composites with different initial metal loading was studied and reviewed for details by XRD analysis. [ABSTRACT FROM AUTHOR]
ISSN:00162361
DOI:10.1016/j.fuel.2021.122455