Palladium–Zinc Catalysts on Mesoporous Titania Prepared by Colloid Synthesis. II. Synthesis and Characterization of PdZn/TiO2 Coating on Inner Surface of Fused Silica Capillary Full article
| Journal |
Journal of Nanoparticle Research
ISSN: 1388-0764 , E-ISSN: 1572-896X |
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| Output data | Year: 2012, Volume: 14, Number: 9, Article number : 1088, Pages count : 15 DOI: 10.1007/s11051-012-1088-x | ||||||
| Tags | Fused silica capillary, Mesoporous titania coating, PdZn nanoparticles, SAXS, TEM | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 12-03-00722 |
| 2 | Siberian Branch of the Russian Academy of Sciences | 76 |
Abstract:
Nanoparticle-doped mesoporous titania coating were synthesized by incorporation of PdZn nanoparticles into TiO2 sol followed by dip-coating of the sol on inner surface of fused silica capillary. Monodispersed PdZn bimetallic colloidal particles with average particle diameters of approximately 2 nm have been prepared by an ethylene glycol reduction of ZnCl2 and Pd(CH3COO)2 in the presence of polyvinylpyrrolidone (PVP). The textural properties, surface structure, chemical composition and morphology of the samples were investigated by means of N2 sorption measurements, TEM and X-ray diffraction. PdZn/TiO2 coating have been further analyzed by quantitative analysis of the SAXS data in combination with the density contrast method, providing direct structural-dispersion information about the active component and support. Calcination conditions suitable for surfactant removal have been optimized to obtain PdZn/TiO2 coatings with required metal particle size and composition. The high dispersion and chemical composition of the nanoparticles embedded in mesoporous titania coating have been retained with no modification after thermal treatment in vacuum at 3000C. Results suggest how porous structure of the PdZn coating may be fine-turned to improve the accessibility of the pores to reactants. The control of the pore size in the range of 4.9 to 6.8 nm of the mesoporous titania was achieved by adding co-surfactants, such as n-butanol.
Cite:
Okhlopkova L.B.
, Kerzhentsev M.A.
, Tuzikov F.V.
, Larichev Y.V.
, Ismagilov Z.R.
Palladium–Zinc Catalysts on Mesoporous Titania Prepared by Colloid Synthesis. II. Synthesis and Characterization of PdZn/TiO2 Coating on Inner Surface of Fused Silica Capillary
Journal of Nanoparticle Research. 2012. V.14. N9. 1088 :1-15. DOI: 10.1007/s11051-012-1088-x WOS Scopus РИНЦ ANCAN OpenAlex
Palladium–Zinc Catalysts on Mesoporous Titania Prepared by Colloid Synthesis. II. Synthesis and Characterization of PdZn/TiO2 Coating on Inner Surface of Fused Silica Capillary
Journal of Nanoparticle Research. 2012. V.14. N9. 1088 :1-15. DOI: 10.1007/s11051-012-1088-x WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Feb 13, 2012 |
| Accepted: | Jul 21, 2012 |
| Published online: | Aug 5, 2012 |
| Published print: | Sep 1, 2012 |
Identifiers:
| Web of science: | WOS:000308225800021 |
| Scopus: | 2-s2.0-84864478084 |
| Elibrary: | 18754159 |
| Chemical Abstracts: | 2012:1858896 |
| Chemical Abstracts (print): | 158:546655 |
| OpenAlex: | W1998182237 |