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 | |
| Publication status | Published - 2016 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Environmental Science(all)
- Process Chemistry and Technology
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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
TY - JOUR
T1 - Stabilized ordered-mesoporous Co3O4 structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons
AU - Ahn, Chang Il
AU - Koo, Hyun Mo
AU - Jo, Jae Min
AU - Roh, Hyun Seog
AU - Lee, Jong Bae
AU - Lee, Yun Jo
AU - Jang, Eun Joo
AU - Bae, Jong Wook
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=84936797003&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2015.06.024
DO - 10.1016/j.apcatb.2015.06.024
M3 - Article
AN - SCOPUS:84936797003
VL - 180
SP - 139
EP - 149
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
SN - 0926-3373
ER -