A Comparative Study of the Deposition of Nanoscale Au–S Intermediates from Aqueous Solutions on CuO, TiO2, and α-Fe2O3 Surfaces Full article
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
||||||
|---|---|---|---|---|---|---|---|
| Output data | Year: 2021, Volume: 62, Number: 4, Pages: 613-621 Pages count : 8 DOI: 10.1134/S0022476621040132 | ||||||
| Tags | XPS, XANES, gold nanoparticles, gold on oxides, gold(I) sulfide, transmission electron microscopy | ||||||
| Authors |
|
||||||
| Affiliations |
|
Funding (1)
| 1 | Russian Foundation for Basic Research | 17-45-240759 (АААА-А17-117051840077-3) |
Abstract:
Products of the interaction between dispersed copper(II), iron(III) (hematite), and titanium(IV) (rutile) oxides and aqueous solutions containing liquid prenucleation intermediates formed in the reaction of HAuCl4 and sodium sulfide with the initial 1:3 molar ratio of the reagents are studied by X-ray photoelectron spectroscopy, Cu L-, Fe L-, Ti L-, O K X-ray absorption near edge structure spectroscopy in combination with transmission electron microscopy. It is found that in comparison with treatment of supports with a HAuCl4 solution, the amount of deposited gold significantly increases in the presence of sulfide ions. Gold nanoparticles covered with adsorbed sulfur form on three studied oxides as a decomposition product of strongly disordered gold(I) sulfide. On copper oxide, discernibly larger gold nanoparticles (with a diameter of about 10 nm against 3-5 nm on hematite and rutile) are observed. The surface of the support is sulfidized.
Cite:
Likhatskii M.N.
, Karacharov A.A.
, Romanchenko A.S.
, Zaikovskii V.I.
, Mikhlin Y.L.
A Comparative Study of the Deposition of Nanoscale Au–S Intermediates from Aqueous Solutions on CuO, TiO2, and α-Fe2O3 Surfaces
Journal of Structural Chemistry. 2021. V.62. N4. P.613-621. DOI: 10.1134/S0022476621040132 WOS Scopus РИНЦ AN OpenAlex
A Comparative Study of the Deposition of Nanoscale Au–S Intermediates from Aqueous Solutions on CuO, TiO2, and α-Fe2O3 Surfaces
Journal of Structural Chemistry. 2021. V.62. N4. P.613-621. DOI: 10.1134/S0022476621040132 WOS Scopus РИНЦ AN OpenAlex
Original:
Лихацкий М.Н.
, Карачаров А.А.
, Романченко А.С.
, Зайковский В.И.
, Михлин Ю.Л.
Сравнительное исследование осаждения наноразмерных интермедиатов Au—S из водных растворов на поверхности CuO, TiO2 и α-Fe2O3
Журнал структурной химии. 2021. Т.62. №4. С.655-663. DOI: 10.26902/jsc_id71161 РИНЦ OpenAlex
Сравнительное исследование осаждения наноразмерных интермедиатов Au—S из водных растворов на поверхности CuO, TiO2 и α-Fe2O3
Журнал структурной химии. 2021. Т.62. №4. С.655-663. DOI: 10.26902/jsc_id71161 РИНЦ OpenAlex
Dates:
| Submitted: | Sep 10, 2020 |
| Accepted: | Nov 17, 2020 |
| Published print: | Apr 1, 2021 |
| Published online: | Jun 8, 2021 |
Identifiers:
| Web of science: | WOS:000659206700013 |
| Scopus: | 2-s2.0-85107611520 |
| Elibrary: | 46824264 |
| Chemical Abstracts: | 2021:1277390 |
| OpenAlex: | W3172753311 |