The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.
Dynamic structural evolution of iron catalysts involving competitive oxidation and carburization during CO 2 hydrogenation
Open accessAbstract
Identifying the dynamic structure of heterogeneous catalysts is crucial for the rational design of new ones. In this contribution, the structural evolution of Fe(0) catalysts during CO 2 hydrogenation to hydrocarbons has been investigated by using several (quasi) in situ techniques. Upon initial reduction, Fe species are carburized to Fe 3 C and then to Fe 5 C 2 . The by-product of CO 2 hydrogenation, H 2 O, oxidizes the iron carbide to Fe 3 O 4 . The formation of Fe 3 O 4 @(Fe 5 C 2 +Fe 3 O 4 ) core-shell structure was observed at steady state, and the surface composition depends on the balance of oxidation and carburization, where water plays a key role in the oxidation. The performance of CO 2 hydrogenation was also correlated with the dynamic surface structure. Theoretical calculations and controll experiments reveal the interdependence between the phase transition and reactive environment. We also suggest a practical way to tune the competitive reactions to maintain an Fe 5 C 2 -rich surface for a desired C 2+ productivity.
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Self-citationDirectly converting CO2 into a gasoline fuel
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Metadata
- Authors
- Zhu, J., Wang, P., Zhang, X., Zhang, G., Li, R., Li, W., Senftle, T. P., Liu, W., Wang, J., Wang, Y., Zhang, A., Fu, Q., Song, C., & Guo, X.
- Venue
- Science Advances
- Published
- 2022-02-04
- Volume
- 8
- Issue
- 5
- Pages
- eabm3629-eabm3629
- ISSN
- 2375-2548 (ISSN-L)
- OpenAlex
- W4210416838
- Cited by
- 317
- References
- 51
- FWCI
- 10.63
- Type
- journal article
- Language
- en
- Open access
- gold
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- Zhu, J., Wang, P., Zhang, X., Zhang, G., Li, R., Li, W., Senftle, T. P., Liu, W., Wang, J., Wang, Y., Zhang, A., Fu, Q., Song, C., & Guo, X. (2022). Dynamic structural evolution of iron catalysts involving competitive oxidation and carburization during CO 2 hydrogenation. Science Advances. https://doi.org/10.1126/sciadv.abm3629
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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