Number of the records: 1
Niobium-Doped Titania Nanoparticles: Synthesis and Assembly into Mesoporous Films and Electrical Conductivity
- 1.
SYSNO ASEP 0348369 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Niobium-Doped Titania Nanoparticles: Synthesis and Assembly into Mesoporous Films and Electrical Conductivity Author(s) Liu, Y. (DE)
Szeifert, J. M. (DE)
Feckl, J. M. (DE)
Mandlmeier, B. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Heyden, O. (DE)
Fattakhova-Rohlfing, D. (DE)
Bein, T. (DE)Source Title ACS Nano. - : American Chemical Society - ISSN 1936-0851
Roč. 4, č. 9 (2010), s. 5373-5381Number of pages 9 s. Language eng - English Country US - United States Keywords nanoparticle synthesis ; nanoparticle self-assembly ; conducting Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA104/08/0435 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000282121000052 DOI 10.1021/nn100785j Annotation Crystalline niobium-doped titania nanoparticles were synthesized via solvothermal procedures using tert-butyl alcohol as a novel reaction medium, and their assembly into mesoporous films was investigated. The solvothermal procedure enables the preparation of crystalline doped and undoped nonagglomerated titania nanoparticles, whose size can be controlled from 4 to 15 nm by changing the reaction temperature and time. The anatase lattice of these particles can incorporate more than 20 mol % of Nb ions. The nanoparticles can be easily dispersed at high concentrations in THF to form stable colloidal suspensions and can be assembled into uniform porous mesostructures directed by the commercial Pluronic block copolymer F127. The resulting mesoporous films show a regular mesostructure with ad spacing of about 17 nm, a uniform pore size of about 10 nm with crystalline walls, a high porosity of 43%, and a large surface area of 190 m(2) cm(-3). Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
Number of the records: 1