Features of the Microstructure of Gold Nanoparticles Inside Cavities of Cucurbit[7]uril According to XAFS Spectra Full article
Journal |
Journal of Experimental and Theoretical Physics Letters (JETP Letters)
ISSN: 0021-3640 , E-ISSN: 1090-6487 |
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Output data | Year: 2013, Volume: 97, Number: 5, Pages: 285-289 Pages count : 5 DOI: 10.1134/S0021364013050032 | ||||||
Tags | CO OXIDATION; K-SPECTRA; INCLUSION; CUCURBITURIL; COMPLEXES; NICKEL | ||||||
Authors |
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Affiliations |
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Funding (2)
1 | Russian Foundation for Basic Research | 12-02-00262 (01201258413) |
2 | The Ministry of Education and Science of the Russian Federation |
Abstract:
The Au L 3 X-ray absorption fine structure (XAFS) spectra have been measured for gold nanoparticles with the calibrated size d Au ∼ 1 nm in the cavities of cucurbit[7]uril molecules. The features of their electronic structure and microstructure have been characterized. It has been found that gold clusters in cavities of cucurbit[7]uril are characterized by smaller (by 0.01–0.02 Å) interatomic distances and a noticeably larger (by a factor of 3 at 12 K) Debye-Waller factor as compared to bulk gold. Analysis of the experimental results and their comparison with the model calculations show that the special properties of atoms on the surface of small metal (gold) particles are not determined by their position at the vertices and edges of small clusters; they are likely attributed to the structural disorder, deformations, and stresses, which increase with a decrease in the size of the particles.
Cite:
Erenburg S.B.
, Trubina S.V.
, Kovalenko E.A.
, Gerasʹko O.A.
, Zaikovskii V.I.
, Kvashnina K.
, Nikitenko S.G.
Features of the Microstructure of Gold Nanoparticles Inside Cavities of Cucurbit[7]uril According to XAFS Spectra
Journal of Experimental and Theoretical Physics Letters (JETP Letters). 2013. V.97. N5. P.285-289. DOI: 10.1134/S0021364013050032 WOS Scopus РИНЦ
Features of the Microstructure of Gold Nanoparticles Inside Cavities of Cucurbit[7]uril According to XAFS Spectra
Journal of Experimental and Theoretical Physics Letters (JETP Letters). 2013. V.97. N5. P.285-289. DOI: 10.1134/S0021364013050032 WOS Scopus РИНЦ
Original:
Эренбург С.Б.
, Трубина С.В.
, Коваленко Е.А.
, Герасько О.А.
, Зайковский В.И.
, Квашнина К.
, Никитенко С.Г.
Особенности микроструктуры нанозолота внутри полостей кукурбит[7]урила по XAFS-спектра
Письма в Журнал экспериментальной и теоретической физики. 2013. Т.97. №5-6. С.326-330. DOI: 10.7868/S0370274X13050093 РИНЦ
Особенности микроструктуры нанозолота внутри полостей кукурбит[7]урила по XAFS-спектра
Письма в Журнал экспериментальной и теоретической физики. 2013. Т.97. №5-6. С.326-330. DOI: 10.7868/S0370274X13050093 РИНЦ
Dates:
Submitted: | Jan 29, 2013 |
Published print: | May 1, 2013 |
Published online: | May 14, 2013 |
Identifiers:
Web of science | WOS:000318897900009 |
Scopus | 2-s2.0-84877776328 |
Elibrary | 20428443 |
Chemical Abstracts | 2013:765849 |
Chemical Abstracts (print) | 159:16900 |
OpenAlex | W2033323679 |