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Energetics of nanocrystalline TiO 2
Open accessAbstract
The energetics of the TiO 2 polymorphs (rutile, anatase, and brookite) were studied by high temperature oxide melt drop solution calorimetry. Relative to bulk rutile, bulk brookite is 0.71 ± 0.38 kJ/mol (6) and bulk anatase is 2.61 ± 0.41 kJ/mol higher in enthalpy. The surface enthalpies of rutile, brookite, and anatase are 2.2 ± 0.2 J/m 2 , 1.0 ± 0.2 J/m 2 , and 0.4 ± 0.1 J/m 2 , respectively. The closely balanced energetics directly confirm the crossover in stability of nanophase polymorphs inferred by Zhang and Banfield (7). An amorphous sample with surface area of 34,600 m 2 /mol is 24.25 ± 0.88 kJ/mol higher in enthalpy than bulk rutile.
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Citations
Cited by
Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications
Chen, X., & Mao, S. S. (2007) · Chemical Reviews · doi:10.1021/cr0500535 · Cited by 10,688
Titanium Dioxide Crystals with Tailored Facets
Liu, G., Yang, H. G., Pan, J., Yang, Y. Q., Lu, G. Q. (., & Cheng, H.-M. (2014) · Chemical Reviews · doi:10.1021/cr400621z · Cited by 1,084
Energetic clues to pathways to biomineralization: Precursors, clusters, and nanoparticles
Navrotsky, A. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0404778101 · Cited by 554
Self-citationTransition metal-doped TiO2and ZnO—present status of the field
Janisch, R., Gopal, P., & Spaldin, N. A. (2005) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/17/27/r01 · Cited by 552
Nanoconfinement-Mediated Water Treatment: From Fundamental to Application
Qian, J., Gao, X., & Pan, B. (2020) · Environmental Science & Technology · doi:10.1021/acs.est.0c01065 · Cited by 428
Metadata
- Authors
- Ranade, M. R., Navrotsky, A., Zhang, H. Z., Banfield, J. F., Elder, S. H., Zaban, A., Borse, P. H., Kulkarni, S. K., Doran, G. S., & Whitfield, H. J.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2002-04-30
- Volume
- 99
- Issue
- suppl_2
- Pages
- 6476-6481
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2001377273
- Cited by
- 538
- References
- 0
- FWCI
- 12.62
- Type
- journal article
- Language
- en
- Open access
- green
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- Ranade, M. R., Navrotsky, A., Zhang, H. Z., Banfield, J. F., Elder, S. H., Zaban, A., Borse, P. H., Kulkarni, S. K., Doran, G. S., & Whitfield, H. J. (2002). Energetics of nanocrystalline TiO 2. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.251534898
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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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