Stabilized ordered-mesoporous Co3O4 structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons

Chang Il Ahn; Hyun Mo Koo; Jae Min Jo; Hyun Seog Roh; Jong Bae Lee; Yun Jo Lee; Eun Joo Jang; Jong Wook Bae

doi:10.1016/j.apcatb.2015.06.024

Stabilized ordered-mesoporous Co₃O₄ structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons

Chang Il Ahn, Hyun Mo Koo, Jae Min Jo, Hyun Seog Roh, Jong Bae Lee, Yun Jo Lee, Eun Joo Jang, Jong Wook Bae

Division of Environmental Engineering

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

49 Citations (Scopus)

Abstract

The metal oxide pillared ordered-mesoporous Co₃O₄ was investigated to design a stable and superior catalyst for CO hydrogenation into linear hydrocarbons through Fischer-Tropsch Synthesis (FTS) reaction. Enhanced structural stability was observed in ordered-mesoporous Co₃O₄ even under hydrogen-excess conditions after modification with a metal oxide pillar of Al₂O₃. The mesoporous Co₃O₄ was synthesized using a hard template of highly ordered three dimensional mesoporous KIT-6. A small number of metal oxide pillars such as Al₂O₃, Mn₂O₄, and SiO₂ with 5wt% were subsequently added to the ordered-mesoporous Co₃O₄ through the incipient wetness impregnation method. The Al₂O₃-modifed mesoporous Co₃O₄ catalyst demonstrated superior CO conversion with a stable activity in CO hydrogenation reaction. The enhanced catalytic stability seems to be attributable to the lower mobility of the Al₂O₃ pillar which formed stronger interactions with the mesoporous Co₃O₄ inner surfaces. The Al₂O₃ modification can effectively stabilize ordered-mesoporous structures of Co₃O₄ by acting as an ordered mesoporous channel reactor and enhancing the transport rate of hydrocarbons formed during FTS reaction.

Original language	English
Pages (from-to)	139-149
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	180
DOIs	https://doi.org/10.1016/j.apcatb.2015.06.024
Publication status	Published - 2016 Jan 1

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Catalysis
Environmental Science(all)
Process Chemistry and Technology

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title = "Stabilized ordered-mesoporous Co3O4 structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons",

abstract = "The metal oxide pillared ordered-mesoporous Co3O4 was investigated to design a stable and superior catalyst for CO hydrogenation into linear hydrocarbons through Fischer-Tropsch Synthesis (FTS) reaction. Enhanced structural stability was observed in ordered-mesoporous Co3O4 even under hydrogen-excess conditions after modification with a metal oxide pillar of Al2O3. The mesoporous Co3O4 was synthesized using a hard template of highly ordered three dimensional mesoporous KIT-6. A small number of metal oxide pillars such as Al2O3, Mn2O4, and SiO2 with 5wt% were subsequently added to the ordered-mesoporous Co3O4 through the incipient wetness impregnation method. The Al2O3-modifed mesoporous Co3O4 catalyst demonstrated superior CO conversion with a stable activity in CO hydrogenation reaction. The enhanced catalytic stability seems to be attributable to the lower mobility of the Al2O3 pillar which formed stronger interactions with the mesoporous Co3O4 inner surfaces. The Al2O3 modification can effectively stabilize ordered-mesoporous structures of Co3O4 by acting as an ordered mesoporous channel reactor and enhancing the transport rate of hydrocarbons formed during FTS reaction.",

author = "Ahn, {Chang Il} and Koo, {Hyun Mo} and Jo, {Jae Min} and Roh, {Hyun Seog} and Lee, {Jong Bae} and Lee, {Yun Jo} and Jang, {Eun Joo} and Bae, {Jong Wook}",

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year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.apcatb.2015.06.024",

language = "English",

volume = "180",

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Stabilized ordered-mesoporous Co₃O₄ structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons. / Ahn, Chang Il; Koo, Hyun Mo; Jo, Jae Min; Roh, Hyun Seog; Lee, Jong Bae; Lee, Yun Jo; Jang, Eun Joo; Bae, Jong Wook.

In: Applied Catalysis B: Environmental, Vol. 180, 01.01.2016, p. 139-149.

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

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AU - Ahn, Chang Il

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AU - Jo, Jae Min

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AU - Lee, Jong Bae

AU - Lee, Yun Jo

AU - Jang, Eun Joo

AU - Bae, Jong Wook

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