The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
Thermally Stable Two‐Dimensional Hexagonal Mesoporous Nanocrystalline Anatase, Meso‐nc‐TiO2: Bulk and Crack‐Free Thin Film Morphologies
Abstract
Herein a novel synthetic route is described for the production of thermally stable, structurally well‐defined two‐dimensional (2D) hexagonal mesoporous nanocrystalline anatase (meso‐nc‐TiO 2), with a large pore diameter, narrow pore‐size distribution, high surface area, and robust inorganic walls comprised of nanocrystalline anatase. The synthetic approach involves the evaporation‐induced co‐assembly of a non‐ionic amphiphilic triblock‐copolymer template and titanium tetraethoxide, but with a pivotal change in the main solvent of the system, where the commonly used ethanol is replaced with 1‐butanol. This seemingly minor modification in solvent type from ethanol to 1‐butanol turns out to be the key synthetic strategy for achieving a robust, structurally well‐ordered meso‐nc‐TiO 2 material in the form of either thick or thin films. The beneficial “solvent” effect originates from the higher hydrophobicity of 1‐butanol than ethanol, enhancing microphase separation and templating, lower critical micelle concentration of the template in 1‐butanol, and the ability to increase the relative concentration of the inorganic precursor to template in the co‐assembly synthesis. Moreover, thin films with dimensions of several centimeters that are devoid of cracks down to the length scale of the mesostructure itself, having high porosity, well‐defined mesostructural features, and semi‐crystalline pore walls were straightforwardly and reproducibly obtained as a result of the physicochemical property advantages of 1‐butanol over ethanol within our synthesis scheme.
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Cites
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Cited by
Porous Metal Oxides as Gas Sensors
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Synthesis of non-siliceous mesoporous oxides
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Metadata
- Authors
- Choi, S. Y., Mamak, M., Coombs, N., Chopra, N., & Ozin, G. A.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2004-04
- Volume
- 14
- Issue
- 4
- Pages
- 335-344
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2039316648
- Cited by
- 358
- References
- 38
- FWCI
- 15.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Choi, S. Y., Mamak, M., Coombs, N., Chopra, N., & Ozin, G. A. (2004). Thermally Stable Two‐Dimensional Hexagonal Mesoporous Nanocrystalline Anatase, Meso‐nc‐TiO2: Bulk and Crack‐Free Thin Film Morphologies. Advanced Functional Materials. https://doi.org/10.1002/adfm.200305039
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