One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation
Expanding mesopore size beyond a 10 nm diameter is a big challenge for developing applications based on mesostructured-mesoporous thin films, especially in nanobiotechnology. This triggers the need of new multipore materials produced by reproducible soft chemistry routes. We present here a novel and...
| Autores principales: | , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_08974756_v21_n13_p2763_Malfatti |
| Aporte de: |
| id |
todo:paper_08974756_v21_n13_p2763_Malfatti |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_08974756_v21_n13_p2763_Malfatti2023-10-03T15:43:52Z One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation Malfatti, L. Bellino, M.G. Innocenzi, P. Soler-Illia, G.J.A.A. Controlled self-assembly Cosolvent Different length scale In-situ Large pores Meso-pores Mesopore sizes Mesoporous films Mesoporous thin films Mesostructured Multi-modal One pot One-pot synthesis Poly(propylene glycol) Porous thin films Porous titania Soft chemistry routes Supramolecular templating Ethylene glycol Phase modulation Pore size Propylene Thin films Titanium dioxide Titanium oxides Tuning Phase separation Expanding mesopore size beyond a 10 nm diameter is a big challenge for developing applications based on mesostructured-mesoporous thin films, especially in nanobiotechnology. This triggers the need of new multipore materials produced by reproducible soft chemistry routes. We present here a novel and simple one-pot synthesis method that allows the creation of a new kind of hierarchically porous thin film using a combination of supramolecular templating and phase separation. Accurate tuning of pore size distribution (bimodal, with small mesopores 13-18 nm diameter, and large pores 20-150 nm diameter) is attained by controlling the solubility of a pore enhancement agent, poly (propylene glycol), in the presence of a co-solvent. The reported strategy permits the in situ tuning of the processes that govern the pore generation at different length scales; this opens a path for fabrication of multimodal mesoporous films, which represents an important breakthrough in the field. © 2009 American Chemical Society. Fil:Bellino, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Soler-Illia, G.J.A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08974756_v21_n13_p2763_Malfatti |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Controlled self-assembly Cosolvent Different length scale In-situ Large pores Meso-pores Mesopore sizes Mesoporous films Mesoporous thin films Mesostructured Multi-modal One pot One-pot synthesis Poly(propylene glycol) Porous thin films Porous titania Soft chemistry routes Supramolecular templating Ethylene glycol Phase modulation Pore size Propylene Thin films Titanium dioxide Titanium oxides Tuning Phase separation |
| spellingShingle |
Controlled self-assembly Cosolvent Different length scale In-situ Large pores Meso-pores Mesopore sizes Mesoporous films Mesoporous thin films Mesostructured Multi-modal One pot One-pot synthesis Poly(propylene glycol) Porous thin films Porous titania Soft chemistry routes Supramolecular templating Ethylene glycol Phase modulation Pore size Propylene Thin films Titanium dioxide Titanium oxides Tuning Phase separation Malfatti, L. Bellino, M.G. Innocenzi, P. Soler-Illia, G.J.A.A. One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| topic_facet |
Controlled self-assembly Cosolvent Different length scale In-situ Large pores Meso-pores Mesopore sizes Mesoporous films Mesoporous thin films Mesostructured Multi-modal One pot One-pot synthesis Poly(propylene glycol) Porous thin films Porous titania Soft chemistry routes Supramolecular templating Ethylene glycol Phase modulation Pore size Propylene Thin films Titanium dioxide Titanium oxides Tuning Phase separation |
| description |
Expanding mesopore size beyond a 10 nm diameter is a big challenge for developing applications based on mesostructured-mesoporous thin films, especially in nanobiotechnology. This triggers the need of new multipore materials produced by reproducible soft chemistry routes. We present here a novel and simple one-pot synthesis method that allows the creation of a new kind of hierarchically porous thin film using a combination of supramolecular templating and phase separation. Accurate tuning of pore size distribution (bimodal, with small mesopores 13-18 nm diameter, and large pores 20-150 nm diameter) is attained by controlling the solubility of a pore enhancement agent, poly (propylene glycol), in the presence of a co-solvent. The reported strategy permits the in situ tuning of the processes that govern the pore generation at different length scales; this opens a path for fabrication of multimodal mesoporous films, which represents an important breakthrough in the field. © 2009 American Chemical Society. |
| format |
JOUR |
| author |
Malfatti, L. Bellino, M.G. Innocenzi, P. Soler-Illia, G.J.A.A. |
| author_facet |
Malfatti, L. Bellino, M.G. Innocenzi, P. Soler-Illia, G.J.A.A. |
| author_sort |
Malfatti, L. |
| title |
One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| title_short |
One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| title_full |
One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| title_fullStr |
One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| title_full_unstemmed |
One-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| title_sort |
one-pot route to produce hierarchically porous titania thin films by controlled self-assembly, swelling, and phase separation |
| url |
http://hdl.handle.net/20.500.12110/paper_08974756_v21_n13_p2763_Malfatti |
| work_keys_str_mv |
AT malfattil onepotroutetoproducehierarchicallyporoustitaniathinfilmsbycontrolledselfassemblyswellingandphaseseparation AT bellinomg onepotroutetoproducehierarchicallyporoustitaniathinfilmsbycontrolledselfassemblyswellingandphaseseparation AT innocenzip onepotroutetoproducehierarchicallyporoustitaniathinfilmsbycontrolledselfassemblyswellingandphaseseparation AT solerilliagjaa onepotroutetoproducehierarchicallyporoustitaniathinfilmsbycontrolledselfassemblyswellingandphaseseparation |
| _version_ |
1807316426471505920 |