Fischer-Tropsch synthesis: Activity of metallic phases of cobalt supported on silica

Muthu Kumaran Gnanamani; Gary Jacobs; Wilson D. Shafer; Burtron H. Davis

doi:10.1016/j.cattod.2013.03.004

Fischer-Tropsch synthesis: Activity of metallic phases of cobalt supported on silica

Muthu Kumaran Gnanamani
, Gary Jacobs
, Wilson D. Shafer
, Burtron H. Davis

Center for Applied Energy Research (CAER)

Research output: Contribution to journal › Article › peer-review

152 Scopus citations

Abstract

By using different catalyst pretreatments, silica supported cobalt catalysts were activated to produce either hcp or fcc cobalt metal particles, as verified by XRD. H₂-TPR and pulse re-oxidation experiments show a higher dispersion of cobalt for the catalyst containing the hcp metallic phase compared to the fcc phase. Cobalt containing hcp metallic phase has shown higher CO conversion on a catalyst weight basis and less methane selectivity compared to fcc containing catalysts under similar reaction conditions. Both hcp and fcc phases of cobalt are stable during the Fischer-Tropsch (FT) synthesis.

Original language	English
Pages (from-to)	13-17
Number of pages	5
Journal	Catalysis Today
Volume	215
DOIs	https://doi.org/10.1016/j.cattod.2013.03.004
State	Published - Oct 15 2013

Bibliographical note

Funding Information:
This work was supported by the Commonwealth of Kentucky

Funding

This work was supported by the Commonwealth of Kentucky

Funders
COMMONWEALTH OF KENTUCKY

Keywords

Fcc cobalt
Fischer-Tropsch synthesis
Hcp cobalt
XRD

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1016/j.cattod.2013.03.004

Cite this

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title = "Fischer-Tropsch synthesis: Activity of metallic phases of cobalt supported on silica",

abstract = "By using different catalyst pretreatments, silica supported cobalt catalysts were activated to produce either hcp or fcc cobalt metal particles, as verified by XRD. H2-TPR and pulse re-oxidation experiments show a higher dispersion of cobalt for the catalyst containing the hcp metallic phase compared to the fcc phase. Cobalt containing hcp metallic phase has shown higher CO conversion on a catalyst weight basis and less methane selectivity compared to fcc containing catalysts under similar reaction conditions. Both hcp and fcc phases of cobalt are stable during the Fischer-Tropsch (FT) synthesis.",

keywords = "Fcc cobalt, Fischer-Tropsch synthesis, Hcp cobalt, XRD",

author = "Gnanamani, \{Muthu Kumaran\} and Gary Jacobs and Shafer, \{Wilson D.\} and Davis, \{Burtron H.\}",

note = "Funding Information: This work was supported by the Commonwealth of Kentucky ",

year = "2013",

month = oct,

day = "15",

doi = "10.1016/j.cattod.2013.03.004",

language = "English",

volume = "215",

pages = "13--17",

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TY - JOUR

T1 - Fischer-Tropsch synthesis

T2 - Activity of metallic phases of cobalt supported on silica

AU - Gnanamani, Muthu Kumaran

AU - Jacobs, Gary

AU - Shafer, Wilson D.

AU - Davis, Burtron H.

N1 - Funding Information: This work was supported by the Commonwealth of Kentucky

PY - 2013/10/15

Y1 - 2013/10/15

N2 - By using different catalyst pretreatments, silica supported cobalt catalysts were activated to produce either hcp or fcc cobalt metal particles, as verified by XRD. H2-TPR and pulse re-oxidation experiments show a higher dispersion of cobalt for the catalyst containing the hcp metallic phase compared to the fcc phase. Cobalt containing hcp metallic phase has shown higher CO conversion on a catalyst weight basis and less methane selectivity compared to fcc containing catalysts under similar reaction conditions. Both hcp and fcc phases of cobalt are stable during the Fischer-Tropsch (FT) synthesis.

AB - By using different catalyst pretreatments, silica supported cobalt catalysts were activated to produce either hcp or fcc cobalt metal particles, as verified by XRD. H2-TPR and pulse re-oxidation experiments show a higher dispersion of cobalt for the catalyst containing the hcp metallic phase compared to the fcc phase. Cobalt containing hcp metallic phase has shown higher CO conversion on a catalyst weight basis and less methane selectivity compared to fcc containing catalysts under similar reaction conditions. Both hcp and fcc phases of cobalt are stable during the Fischer-Tropsch (FT) synthesis.

KW - Fcc cobalt

KW - Fischer-Tropsch synthesis

KW - Hcp cobalt

KW - XRD

UR - https://www.scopus.com/pages/publications/84882290159

UR - https://www.scopus.com/pages/publications/84882290159#tab=citedBy

U2 - 10.1016/j.cattod.2013.03.004

DO - 10.1016/j.cattod.2013.03.004

M3 - Article

AN - SCOPUS:84882290159

SN - 0920-5861

VL - 215

SP - 13

EP - 17

JO - Catalysis Today

JF - Catalysis Today

ER -

Fischer-Tropsch synthesis: Activity of metallic phases of cobalt supported on silica

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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