Investigation of the Hydrogen Capacity of Composites Based on ZnOCu Full article
Conference |
19th Conference on Application of Neutron Scattering for Condensed Matter Investigations 11-15 Sep 2006 , Obninsk |
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Journal |
Crystallography Reports
ISSN: 1063-7745 , E-ISSN: 1562-689X |
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Output data | Year: 2007, Volume: 52, Number: 3, Pages: 474-478 Pages count : 5 DOI: 10.1134/S1063774507030248 | ||||||||
Tags | Deuterium; Energy barriers; Hydrogen storage; Neutron scattering; Saturation (materials composition); Zinc oxide | ||||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Support Foundation |
Abstract:
The composites ZnOCuH(D) saturated with hydrogen (deuterium) to a content of ∼1 wt % are investigated by the neutron scattering methods. Upon cooling of the samples (the ZnO matrix containing Cu crystals ∼10 nm in size) from 300 to 4 K, hydrogen (deuterium) is condensed on the cluster surface and penetrates inside the clusters in which the atomic hydrogen content with respect to copper can be as high as 30% at 20 K. Simultaneously, hydrogen fills nanopores of the ZnO matrix. It is revealed that, at temperatures of 90–300 K, approximately one-third of the hydrogen amount participates in the fast diffusion (the diffusion constant is approximately equal to 8 × 10−5 cm2/s) and the other two-thirds are immobilized. At 20 K, the fraction of mobile hydrogen decreases to ∼10%. An analysis of the results obtained demonstrates that the energy barriers retaining hydrogen in defect regions are relatively low.
Cite:
Trunov V.A.
, Lebedev V.T.
, Sokolov A.E.
, Grushko Y.S.
, Török G.
, van den Heuvel J.C.
, Batyrev E.D.
, Yurieva T.M.
, Plyasova L.M.
Investigation of the Hydrogen Capacity of Composites Based on ZnOCu
Crystallography Reports. 2007. V.52. N3. P.474-478. DOI: 10.1134/S1063774507030248 WOS Scopus РИНЦ
Investigation of the Hydrogen Capacity of Composites Based on ZnOCu
Crystallography Reports. 2007. V.52. N3. P.474-478. DOI: 10.1134/S1063774507030248 WOS Scopus РИНЦ
Original:
Трунов В.А.
, Лебедев В.Т.
, Соколов А.Е.
, Грушко Ю.С.
, Торок Д.
, ван ден Хойвель И.К.
, Batyrev E.
, Юрьева Т.М.
, Плясова Л.М.
Исследование водородной емкости композитов на основе ZnOCu
Кристаллография. 2007. Т.52. №3. С.496-500. РИНЦ
Исследование водородной емкости композитов на основе ZnOCu
Кристаллография. 2007. Т.52. №3. С.496-500. РИНЦ
Dates:
Submitted: | Nov 23, 2006 |
Published print: | May 1, 2007 |
Identifiers:
Web of science | WOS:000246804500024 |
Scopus | 2-s2.0-34249683099 |
Elibrary | 13535108 |
Chemical Abstracts | 2007:580076 |
Chemical Abstracts (print) | 148:541826 |
OpenAlex | W1996819692 |