Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Structural-chemical transformations of two-dimensional iron-oxygen nanostructures in the course of transport reduction. / Smirnov, V. M.; Voronkov, G. P.; Semenov, V. G.; Povarov, V. G.; Gittsovich, V. N.; Sinel'nikov, B. M.; Murin, I. V.
в: Russian Journal of General Chemistry, Том 71, № 10, 10.2001, стр. 1506-1512.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Structural-chemical transformations of two-dimensional iron-oxygen nanostructures in the course of transport reduction
AU - Smirnov, V. M.
AU - Voronkov, G. P.
AU - Semenov, V. G.
AU - Povarov, V. G.
AU - Gittsovich, V. N.
AU - Sinel'nikov, B. M.
AU - Murin, I. V.
N1 - Funding Information: The work was financially supported by the Russian Foundation for Basic Research (project no. 99-03-32 010) and the Integratsiya Program (project no. A-0 146).
PY - 2001/10
Y1 - 2001/10
N2 - Transport reduction was shown to allow finely controlling the Fe+3/Fe+2 ratio in iron-oxygen two-dimensional nanostructures (nanolayers, thickness 3-15 Å) on silica. It was found by Mössbauer spectroscopy that isolated surface iron-oxygen groups →-Si-O-Fe(OH)2 and (→Si-O-)2FeOH are not reduced at 400-600°C, which is explained by their covalent bonding with silica. The transport reduction of samples with applied nanolayers (one and four) at T ≥ 600°C was shown to form bulk phases [iron(II) silicate and metallic iron] on the silica surface. The features of structural-chemical transformations on transport reduction of iron-oxygen nanolayers on supports are primarily associated with the specifics of phase formation in nanostructures.
AB - Transport reduction was shown to allow finely controlling the Fe+3/Fe+2 ratio in iron-oxygen two-dimensional nanostructures (nanolayers, thickness 3-15 Å) on silica. It was found by Mössbauer spectroscopy that isolated surface iron-oxygen groups →-Si-O-Fe(OH)2 and (→Si-O-)2FeOH are not reduced at 400-600°C, which is explained by their covalent bonding with silica. The transport reduction of samples with applied nanolayers (one and four) at T ≥ 600°C was shown to form bulk phases [iron(II) silicate and metallic iron] on the silica surface. The features of structural-chemical transformations on transport reduction of iron-oxygen nanolayers on supports are primarily associated with the specifics of phase formation in nanostructures.
UR - http://www.scopus.com/inward/record.url?scp=0035470932&partnerID=8YFLogxK
U2 - 10.1023/A:1013965912185
DO - 10.1023/A:1013965912185
M3 - Article
AN - SCOPUS:0035470932
VL - 71
SP - 1506
EP - 1512
JO - Russian Journal of General Chemistry
JF - Russian Journal of General Chemistry
SN - 1070-3632
IS - 10
ER -
ID: 88010148