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High Selectivity CO2 Hydrogenation to Liquid Fuel Over NaFeZnMn Catalyst
Direct synthesis of liquid fuel (C 5+ hydrocarbons) through CO 2 hydrogenation has attracted considerable interest. However, it is plagued by high selectivity of C 1 by-products (CO and CH 4 ) and low reaction activity. Herein, we report that Na-FeZn catalysts promoted by a combination of metal addi...
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Published in: | Catalysis letters 2025, Vol.155 (1), p.2, Article 2 |
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Main Authors: | , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | Direct synthesis of liquid fuel (C
5+
hydrocarbons) through CO
2
hydrogenation has attracted considerable interest. However, it is plagued by high selectivity of C
1
by-products (CO and CH
4
) and low reaction activity. Herein, we report that Na-FeZn catalysts promoted by a combination of metal additives and investigate their synergistic effect in the catalytic CO
2
hydrogenation reaction. The CO
2
conversion is high to 40.6% with the 68.3% C
5+
selectivity. The characteristic results reveal the specific surface area has a great influence on the catalytic performance. Furthermore, the synergistic effect of Mn in the catalyst enhances CO
2
adsorption while weakening H
2
adsorption, thus remarkably promoting the carbon chain growth and limiting the production of C
1
products. This study offers a promising approach to modulating the metal electronic environment and improving carbon efficiency for CO
2
hydrogenation reactions.
Graphical Abstract
We present a simple NaFeZnMn-S nanocatalyst that can effectively catalyze CO
2
hydrogenation to C
5+
hydrocarbons. The selectivity towards C
5+
hydrocarbons is as high as 68.3% at 40.6% CO
2
conversion. |
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ISSN: | 1011-372X 1572-879X |
DOI: | 10.1007/s10562-024-04869-7 |