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Synthesis of Mesoporous α-Fe2O3 Nanostructures for Highly Sensitive Gas Sensors and High Capacity Anode Materials in Lithium Ion Batteries
Abstract
Mesoporous α-Fe 2 O 3 materials were prepared in large quantity by the soft template synthesis method using the triblock copolymer surfactant F127 as the template. Nitrogen adsorption−desorption isothermal measurements and transmission electron microscope observation revealed that the as-prepared mesoporous α-Fe 2 O 3 nanostructures have large mesopores in a wide size range of 5−30 nm. It has been found that the Morin transition depends on thermal history of mesoporous α-Fe 2 O 3, which is driven by surface anisotropy. Superparamagnetic behavior of mesoporous α-Fe 2 O 3 is also associated with surface spins with blocking temperature around 50 K. When applied as gas sensors, mesoporous α-Fe 2 O 3 nanostructures exhibited high gas sensitivity toward acetic acid and ethanol gas. As anodes in lithium ion cells, mesoporous α-Fe 2 O 3 materials show a high specific capacity of 1360 mAh/g with excellent cycling stability and high rate capacity.
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Generalized syntheses of large-pore mesoporous metal oxides with semicrystalline frameworks
Yang, P., Zhao, D., Margolese, D. I., Chmelka, B. F., & Stucky, G. D. (1998) · Nature · doi:10.1038/24132 · Cited by 2,493
Cited by
Nanoparticle decoration with surfactants: Molecular interactions, assembly, and applications
Heinz, H., Pramanik, C., Heinz, O., Ding, Y., Mishra, R. K., Marchon, D., Flatt, R. J., Estrela-Lopis, I., Llop, J., Moya, S., et al. (2017) · Surface Science Reports · doi:10.1016/j.surfrep.2017.02.001 · Cited by 608
Guo, S., Wang, H., Yang, W., Fida, H., You, L., & Zhou, K. (2020) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2019.118250 · Cited by 499
Huang, D., Yan, X., Yan, M., Zeng, G., Zhou, C., Wan, J., Cheng, M., & Xue, W. (2018) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.8b03620 · Cited by 346
Han, F., Li, D., Li, W., Lei, C., Sun, Q., & Lu, A. (2013) · Advanced Functional Materials · doi:10.1002/adfm.201202254 · Cited by 306
Lee, S. C., Jeong, Y., Kim, Y. J., Kim, H., Lee, H. U., Lee, Y.-C., Lee, S. M., Kim, H. J., An, H.-R., Ha, M. G., et al. (2018) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2018.04.048 · Cited by 40
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Metadata
- Authors
- Sun, B., Horvat, J., Kim, H. S., Kim, W.-S., Ahn, J., & Wang, G.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-10-15
- Volume
- 114
- Issue
- 44
- Pages
- 18753-18761
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2023882868
- Cited by
- 323
- References
- 1
- FWCI
- 11.89
- Type
- journal article
- Language
- en
- Open access
- closed
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- Sun, B., Horvat, J., Kim, H. S., Kim, W.-S., Ahn, J., & Wang, G. (2010). Synthesis of Mesoporous α-Fe2O3 Nanostructures for Highly Sensitive Gas Sensors and High Capacity Anode Materials in Lithium Ion Batteries. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp102286e
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