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Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites
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SYSNO ASEP 0369102 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Synthesis, tuning of electrical conductivity and self-assembly of niobium doped titania nanoparticles Author(s) Liu, Y. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Bein, T. (DE)
Fattakhova-Rohlfing, D. (DE)Source Title Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites, Vol. 1 - Chapter 4: Nanostructured Coatings, Surfaces & Films. - Danville : NSTI, 2011 - ISBN 978-1-4398-7142-3 Pages s. 243-246 Number of pages 4 s. Number of pages 882 Language eng - English Country US - United States Keywords conducting transparent oxides ; mesoporous films ; niobium-doped titania Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects DF11P01OVV012 GA MK - Ministry of Culture (MK) Annotation Controlling the synthesis of ultrasmall, stable oxide nanoparticles of different compositions and functionality is a continuing quest of nanoscience. Here we report on a solvothermal procedure that enables the preparation of crystalline niobium-doped and undoped non-agglomerated dispersible titania nanoparticles with a narrow particle size distribution and homogeneous incorporation of doping atoms within the host lattice. We show that the particle size and crystallinity can be controlled by the reaction temperature and time. Significantly, substitutional doping with niobium ions drastically increases the electrical conductivity of the titania particles. In contrast to the titania particles prepared by a solvothermal synthesis in benzyl alcohol, those of similar size and crystallinity synthesized in tert-butanol can be easily dispersed at high concentrations in THF to form stable colloidal dispersions, which can be attributed to different surface chemistry. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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