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Effect of Na Promoter on Fe-Based Catalyst for CO2 Hydrogenation to Alkenes
Abstract
A series of Fe-based catalysts with accurately controlled amounts of Na are synthesized to investigate the relationship between the promoter and the catalytic performance for CO 2 hydrogenation to alkenes. With the increasing amount of Na, both CO 2 conversion and alkenes selectivity increase at low and moderate amounts and then plateau (with the highest to be 36.8% and 64.3%, respectively), while the corresponding methane production decreases to 7.2%. It is found that the addition of Na enhances the adsorption of CO 2, facilitates the formation and stability of active species Fe 5 C 2, and inhibits the secondary hydrogenation of alkenes. All these effects lead to the desirable catalytic performance. Besides, it is observed that the content of Fe 5 C 2 is related to the amount of Na. This study can provide scientific guidance to the design and the synthesis of high-efficiency catalysts for CO 2 hydrogenation to high-value chemicals.
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Cites
Recent advances in catalytic hydrogenation of carbon dioxide
Wang, W., Wang, S., Ma, X., & Gong, J. (2011) · Chemical Society Reviews · doi:10.1039/c1cs15008a · Cited by 3,316
Cited by
Advances in the Design of Heterogeneous Catalysts and Thermocatalytic Processes for CO2 Utilization
De, S., Dokania, A., Ramirez, A., & Gascon, J. (2020) · ACS Catalysis · doi:10.1021/acscatal.0c04273 · Cited by 355
Xu, Y., Zhai, P., Deng, Y., Xie, J., Liu, X., Wang, S., & Ma, D. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.202009620 · Cited by 258
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Metadata
- Authors
- Liang, B., Duan, H., Sun, T., Ma, J., Liu, X., Xu, J., Su, X., Huang, Y., & Zhang, T.
- Venue
- ACS Sustainable Chemistry & Engineering
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-12-10
- Volume
- 7
- Issue
- 1
- Pages
- 925-932
- ISSN
- 2168-0485 (ISSN-L)
- OpenAlex
- W2904588570
- Cited by
- 200
- References
- 1
- FWCI
- 2.86
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liang, B., Duan, H., Sun, T., Ma, J., Liu, X., Xu, J., Su, X., Huang, Y., & Zhang, T. (2019). Effect of Na Promoter on Fe-Based Catalyst for CO2 Hydrogenation to Alkenes. ACS Sustainable Chemistry & Engineering. https://doi.org/10.1021/acssuschemeng.8b04538
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