Di-(2-Ethylhexyl) Dithiophosphoric Acid Surface Protected Gold Nanoparticles: Micellar Synthesis, Stabilization, Isolation, and Properties Научная публикация
Журнал |
Gold Bulletin
ISSN: 2364-821X , E-ISSN: 2190-7579 |
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Вых. Данные | Год: 2011, Том: 44, Номер: 4, Страницы: 2007-2015 Страниц : 9 DOI: 10.1007/s13404-011-0031-8 | ||||
Ключевые слова | Di-(2-ethylhexyl) dithiophosphoric acid, Gold nanoparticles, Reverse micelles, Triton N-42 surfactant | ||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Российский фонд фундаментальных исследований | 05-03-32308 |
2 | Российский фонд фундаментальных исследований | 09-03-00511 |
Реферат:
Gold nanoparticles (AuNPs) were synthesized in the organic solution by means of the reduction of HAuCl4 by hydrazine in reverse micelles of oxyethylated surfactant Triton N-42, with decane as the dispersion medium. To isolate the powder of particles, the micelles were destroyed with chloroform in the presence of di-(2-ethylhexyl) dithiophosphoric acid as a surface protecting agent. According to the results of several experiments, the yield is within the limits of 90–98%, calculated for gold. The obtained preparations are dark blue hydrophobic powders containing aggregated but not agglomerated gold nanoparticles, as well as microcrystals (∼0.08–0.2 μm) of NaCl. The powders get re-dispersed in weakly polar organic solvents with the formation of colloidal solutions. The shape of the nanoparticles is spherical. Their nuclei are gold single crystals with a narrow size distribution; their diameter (d Au) is about two times as large as the diameter of the aqueous nucleus (d c) of initial micelles: d Au = 7.7 ± 1.4 nm (d c = 3.6 nm) and 8.8 ± 1.5 nm (4.6 nm). The preparations were studied by means of dynamic light scattering, atomic force microscopy, transmission electron microscopy, UV–vis spectroscopy, IR spectroscopy, X-ray powder diffraction, and thermogravimetric and elemental analyses. In the case of the particles with d Au = 8.8 nm, the product is a mixture of AuNPs and the salt with the molar ratio Au/NaCl ≈ 1:4.54, while the gross composition of AuNPs per one gold atom is estimated as Au(C16H34O2PS2Na∙2N2H4)0.16 with the number of gold atoms in one particle ∼21,000.
Библиографическая ссылка:
Tatarchuk V.V.
, Sergievskaya A.P.
, Bulavchenko A.I.
, Zaikovskii V.I.
, Druzhinina I.A.
, Korda T.M.
, Gevko P.N.
, Alekseev A.V.
Di-(2-Ethylhexyl) Dithiophosphoric Acid Surface Protected Gold Nanoparticles: Micellar Synthesis, Stabilization, Isolation, and Properties
Gold Bulletin. 2011. V.44. N4. P.2007-2015. DOI: 10.1007/s13404-011-0031-8 WOS Scopus РИНЦ
Di-(2-Ethylhexyl) Dithiophosphoric Acid Surface Protected Gold Nanoparticles: Micellar Synthesis, Stabilization, Isolation, and Properties
Gold Bulletin. 2011. V.44. N4. P.2007-2015. DOI: 10.1007/s13404-011-0031-8 WOS Scopus РИНЦ
Файлы:
Полный текст от издателя
Даты:
Опубликована online: | 6 окт. 2011 г. |
Опубликована в печати: | 1 дек. 2011 г. |
Идентификаторы БД:
Web of science | WOS:000297750400003 |
Scopus | 2-s2.0-84856341312 |
РИНЦ | 18034556 |
Chemical Abstracts | 2011:1653906 |
Chemical Abstracts (print) | 156:108984 |
OpenAlex | W1990424135 |