Highly ordered, accessible and nanocrystalline mesoporous TiO₂ thin films on transparent conductive substrates.
Identifieur interne : 000D23 ( Main/Exploration ); précédent : 000D22; suivant : 000D24Highly ordered, accessible and nanocrystalline mesoporous TiO₂ thin films on transparent conductive substrates.
Auteurs : RBID : pubmed:22823883English descriptors
- KwdEn :
- Catalysis, Crystallization, Electric Conductivity, Electrochemistry (methods), Hot Temperature, Materials Testing, Methylene Blue (pharmacology), Microscopy, Electron, Transmission (methods), Models, Statistical, Nanoparticles (chemistry), Nanotechnology (methods), Photochemistry (methods), Porosity, Surface Properties, Temperature, Titanium (chemistry).
- MESH :
- chemical , chemistry : Titanium.
- chemical , pharmacology : Methylene Blue.
- chemistry : Nanoparticles.
- methods : Electrochemistry, Microscopy, Electron, Transmission, Nanotechnology, Photochemistry.
- Catalysis, Crystallization, Electric Conductivity, Hot Temperature, Materials Testing, Models, Statistical, Porosity, Surface Properties, Temperature.
Abstract
Highly porous (V(mesopore) = 25-50%) and ordered mesoporous titania thin films (MTTF) were prepared on ITO (indium tin oxide)-covered glass by a fast two-step method. The effects of substrate surface modification and thermal treatment on pore order, accessibility and crystallinity of the MTTF were systematically studied for MTTF deposited onto bare and titania-modified ITO. MTTF exposed briefly to 550 °C resulted in highly ordered films with grid-like structures, enlarged pore size, and increased accessible pore volume when prepared onto the modified ITO substrate. Mesostructure collapse and no significant change in pore volume were observed for MTTF deposited on bare ITO substrates. Highly crystalline anatase was obtained for MTTF prepared on the modified-ITO treated at high temperatures, establishing the relationship between grid-like structures and titania crystallization. Photocatalytic activity was maximized for samples with increased crystallization and high accessible pore volume. In this manner, a simple way of designing materials with optimized characteristics for optoelectronic applications was achieved through the modification of the ITO surface and a controlled thermal treatment.
DOI: 10.1021/am300990p
PubMed: 22823883
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Paz 1499, B1650KNA, San Martín, Buenos Aires</wicri:regionArea></affiliation></author><author><name sortKey="Perez, M Dolores" uniqKey="Perez M">M Dolores Perez</name></author><author><name sortKey="Fuertes, M Cecilia" uniqKey="Fuertes M">M Cecilia Fuertes</name></author><author><name sortKey="Soler Illia, Galo J A A" uniqKey="Soler Illia G">Galo J A A Soler-Illia</name></author></titleStmt><publicationStmt><date when="2012">2012</date><idno type="doi">10.1021/am300990p</idno><idno type="RBID">pubmed:22823883</idno><idno type="pmid">22823883</idno><idno type="wicri:Area/Main/Corpus">000B71</idno><idno type="wicri:Area/Main/Curation">000B71</idno><idno type="wicri:Area/Main/Exploration">000D23</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalysis</term><term>Crystallization</term><term>Electric Conductivity</term><term>Electrochemistry (methods)</term><term>Hot Temperature</term><term>Materials Testing</term><term>Methylene Blue (pharmacology)</term><term>Microscopy, Electron, Transmission (methods)</term><term>Models, Statistical</term><term>Nanoparticles (chemistry)</term><term>Nanotechnology (methods)</term><term>Photochemistry (methods)</term><term>Porosity</term><term>Surface Properties</term><term>Temperature</term><term>Titanium (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Titanium</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Methylene Blue</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Nanoparticles</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Electrochemistry</term><term>Microscopy, Electron, Transmission</term><term>Nanotechnology</term><term>Photochemistry</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Catalysis</term><term>Crystallization</term><term>Electric Conductivity</term><term>Hot Temperature</term><term>Materials Testing</term><term>Models, Statistical</term><term>Porosity</term><term>Surface Properties</term><term>Temperature</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Highly porous (V(mesopore) = 25-50%) and ordered mesoporous titania thin films (MTTF) were prepared on ITO (indium tin oxide)-covered glass by a fast two-step method. The effects of substrate surface modification and thermal treatment on pore order, accessibility and crystallinity of the MTTF were systematically studied for MTTF deposited onto bare and titania-modified ITO. MTTF exposed briefly to 550 °C resulted in highly ordered films with grid-like structures, enlarged pore size, and increased accessible pore volume when prepared onto the modified ITO substrate. Mesostructure collapse and no significant change in pore volume were observed for MTTF deposited on bare ITO substrates. Highly crystalline anatase was obtained for MTTF prepared on the modified-ITO treated at high temperatures, establishing the relationship between grid-like structures and titania crystallization. Photocatalytic activity was maximized for samples with increased crystallization and high accessible pore volume. In this manner, a simple way of designing materials with optimized characteristics for optoelectronic applications was achieved through the modification of the ITO surface and a controlled thermal treatment.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">22823883</PMID><DateCreated><Year>2012</Year><Month>08</Month><Day>22</Day></DateCreated><DateCompleted><Year>2012</Year><Month>11</Month><Day>13</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1944-8252</ISSN><JournalIssue CitedMedium="Internet"><Volume>4</Volume><Issue>8</Issue><PubDate><Year>2012</Year><Month>Aug</Month></PubDate></JournalIssue><Title>ACS applied materials & interfaces</Title><ISOAbbreviation>ACS Appl Mater Interfaces</ISOAbbreviation></Journal><ArticleTitle>Highly ordered, accessible and nanocrystalline mesoporous TiO₂ thin films on transparent conductive substrates.</ArticleTitle><Pagination><MedlinePgn>4320-30</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/am300990p</ELocationID><Abstract><AbstractText>Highly porous (V(mesopore) = 25-50%) and ordered mesoporous titania thin films (MTTF) were prepared on ITO (indium tin oxide)-covered glass by a fast two-step method. The effects of substrate surface modification and thermal treatment on pore order, accessibility and crystallinity of the MTTF were systematically studied for MTTF deposited onto bare and titania-modified ITO. MTTF exposed briefly to 550 °C resulted in highly ordered films with grid-like structures, enlarged pore size, and increased accessible pore volume when prepared onto the modified ITO substrate. Mesostructure collapse and no significant change in pore volume were observed for MTTF deposited on bare ITO substrates. Highly crystalline anatase was obtained for MTTF prepared on the modified-ITO treated at high temperatures, establishing the relationship between grid-like structures and titania crystallization. Photocatalytic activity was maximized for samples with increased crystallization and high accessible pore volume. In this manner, a simple way of designing materials with optimized characteristics for optoelectronic applications was achieved through the modification of the ITO surface and a controlled thermal treatment.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Violi</LastName><ForeName>Ianina L</ForeName><Initials>IL</Initials><Affiliation>Gerencia Química, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina.</Affiliation></Author><Author ValidYN="Y"><LastName>Perez</LastName><ForeName>M Dolores</ForeName><Initials>MD</Initials></Author><Author ValidYN="Y"><LastName>Fuertes</LastName><ForeName>M Cecilia</ForeName><Initials>MC</Initials></Author><Author ValidYN="Y"><LastName>Soler-Illia</LastName><ForeName>Galo J A A</ForeName><Initials>GJ</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>08</Month><Day>03</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>ACS Appl Mater Interfaces</MedlineTA><NlmUniqueID>101504991</NlmUniqueID><ISSNLinking>1944-8244</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>15FIX9V2JP</RegistryNumber><NameOfSubstance>titanium dioxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>D1JT611TNE</RegistryNumber><NameOfSubstance>Titanium</NameOfSubstance></Chemical><Chemical><RegistryNumber>T42P99266K</RegistryNumber><NameOfSubstance>Methylene Blue</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Catalysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Crystallization</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Electric Conductivity</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Electrochemistry</DescriptorName><QualifierName MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Hot Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Materials Testing</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Methylene Blue</DescriptorName><QualifierName MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Microscopy, Electron, Transmission</DescriptorName><QualifierName MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Models, Statistical</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Nanoparticles</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Nanotechnology</DescriptorName><QualifierName MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Photochemistry</DescriptorName><QualifierName MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Porosity</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Surface Properties</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Titanium</DescriptorName><QualifierName MajorTopicYN="Y">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2012</Year><Month>8</Month><Day>3</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>7</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>7</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>11</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1021/am300990p</ArticleId><ArticleId IdType="pubmed">22823883</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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