Semiconductor Nanoparticles in the Channels of Mesoporous Silica and Titania Thin Films.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F02%3A54030054" target="_blank" >RIV/61388955:_____/02:54030054 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Semiconductor Nanoparticles in the Channels of Mesoporous Silica and Titania Thin Films.

Popis výsledku v původním jazyce

A procedure for the preparation of porous silica thin films was developed, which is based on the use of block copolymers as structure directing agents and the application of the dip-coating technique. The prepared films exhibit an uniform thickness and alarge roughness factor indicating the highly developed porosity. The addition of Cd2+ ions to the reaction gel for silica films prior to their formation, followed by the calcination of films at 623 K and treatment with H2S or H2Se is the preferred procedure for the creation of CdS or CdSe nanoparticles. The occurrence of the size-quantization effect confirms that the particles are located within the pores and that their size corresponds to the pore width of the host. The porous structure of titania films prepared using a poly(alkylene) block copolymer in an ethanolic medium depends on their thickness because the completeness of the hydrolysis of the titania precursor is decided by its accessibility for air humidity.

Název v anglickém jazyce

Semiconductor Nanoparticles in the Channels of Mesoporous Silica and Titania Thin Films.

Popis výsledku anglicky

A procedure for the preparation of porous silica thin films was developed, which is based on the use of block copolymers as structure directing agents and the application of the dip-coating technique. The prepared films exhibit an uniform thickness and alarge roughness factor indicating the highly developed porosity. The addition of Cd2+ ions to the reaction gel for silica films prior to their formation, followed by the calcination of films at 623 K and treatment with H2S or H2Se is the preferred procedure for the creation of CdS or CdSe nanoparticles. The occurrence of the size-quantization effect confirms that the particles are located within the pores and that their size corresponds to the pore width of the host. The porous structure of titania films prepared using a poly(alkylene) block copolymer in an ethanolic medium depends on their thickness because the completeness of the hydrolysis of the titania precursor is decided by its accessibility for air humidity.

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA4040804" target="_blank" >IAA4040804: Elektrochemické vlastnosti vysoce uspořádaného oxidu titaničitého</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Impact of Zeolites and Other Porous Materials on the New Technologies at the Beginning of the New Millennium.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

1457-1464

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Taormina [IT]

Datum konání akce

1. 9. 2002

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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