The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Mechanism and Kinetics of Oxidation Reaction of Aqueous Ti3C2Tx Suspensions at Different pHs and Temperatures
Abstract
Understanding the oxidation reaction of aqueous Ti 3 C 2 T x MXene suspensions is very important for fostering fundamental academic studies as well as widespread industrial applications. Herein, we investigated the mechanism and kinetics of the oxidation reaction of aqueous Ti 3 C 2 T x suspensions at various pH and temperature conditions. Through comprehensive analysis, the mechanism of the chemical oxidative degradation of aqueous Ti 3 C 2 T x colloids was established. Chemical oxidation produces solid products such as TiO 2 and amorphous carbon as well as various gaseous species including CH 4, CO, CO 2, and HF. Additionally, our comprehensive kinetic study proposes that aqueous Ti 3 C 2 T x dispersions are degraded via an acid-catalyzed oxidation reaction, where, under acidic conditions, the protonation of the hydroxyl terminal groups on the Ti 3 C 2 T x flakes induces electron localization on titanium atoms and accelerates their oxidation reaction. In contrast, under basic conditions, the electrostatically alkali-metalized hydroxyl intermediates forming a bulky solvent cage results in less electron localization on titanium atoms, and thus retards their oxidative degradation.
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Citations
Cites
Metallic Ti3C2T x MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio
Kim, S. J., Koh, H.-J., Ren, C. E., Kwon, O., Maleski, K., Cho, S.-Y., Anasori, B., Kim, C.-K., Choi, Y.-K., Kim, J., et al. (2018) · ACS Nano · doi:10.1021/acsnano.7b07460 · Cited by 1,699
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Cited by
A Review on MXene Synthesis, Stability, and Photocatalytic Applications
Murali, G., Reddy Modigunta, J. K., Park, Y. H., Lee, J.-H., Rawal, J., Lee, S.-Y., In, I., & Park, S.-J. (2022) · ACS Nano · doi:10.1021/acsnano.2c04750 · Cited by 668
Recent Advances in Oxidation Stable Chemistry of 2D MXenes
Cao, F., Zhang, Y., Wang, H., Khan, K., Tareen, A. K., Qian, W., Zhang, H., & Ågren, H. (2022) · Advanced Materials · doi:10.1002/adma.202107554 · Cited by 648
Metadata
- Authors
- Doo, S., Chae, A., Kim, D., Oh, T., Ko, T. Y., Kim, S. J., Koh, D.-Y., & Koo, C. M.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-05-07
- Volume
- 13
- Issue
- 19
- Pages
- 22855-22865
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W3157839109
- Cited by
- 214
- References
- 1
- FWCI
- 7.23
- Type
- journal article
- Language
- en
- Open access
- closed
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