Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The thermal behavior of double complex compounds with the cation [Cr(ur)6]3+ in a reducing atmosphere. / Gosteva, Alevtina N.; Plyusnin, Pavel E.; Semushina, Yulya P. и др.
в: Journal of Thermal Analysis and Calorimetry, Том 134, № 1, 01.10.2018, стр. 253-260.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The thermal behavior of double complex compounds with the cation [Cr(ur)6]3+ in a reducing atmosphere
AU - Gosteva, Alevtina N.
AU - Plyusnin, Pavel E.
AU - Semushina, Yulya P.
AU - Pechenyuk, Sofiya I.
AU - Filatov, Evgeny Yu
AU - Kyrtova, Olga Yu
PY - 2018/10/1
Y1 - 2018/10/1
N2 - The thermal behavior of double complex compounds (DCC) [Cr(ur)6][Co(CN)6]·4H2O (I), [Cr(ur)6][Co(C2O4)3]·3.5H2O (II), [Cr(ur)6][Fe(CN)6]·4H2O (III), [Cr(ur)6][Fe(C2O4)3]·2H2O (IV) and urea (ur) was studied (ur = urea, H2NCONH2). Thermal decomposition was carried out by the TG-MS method and method of static experiments in the reducing atmosphere at a 1-h exposure. The final thermolysis products are characterized by elemental analysis, XDR, IR spectrometry, SEM, the specific surface area (SBET) of the samples. The porous structure of the samples was determined. Cr2O3 + Co0 are formed as a result of thermal reduction of I, II, Cr2O3 + Fe0 + Fe2O3 for III, FeCr2O4 + Fe0 for IV. The replacement of CN− ligands by C2O4 2− ligands leads to an increase in the specific surface by a factor of ~ 2. Catalytically activity of Co-containing degradation products is demonstrated in the model catalytic decomposition of H2O2. The relationship between SBET and the obtained values of the rate constants of the reaction is not observed. Fe-containing samples are not catalytically active.
AB - The thermal behavior of double complex compounds (DCC) [Cr(ur)6][Co(CN)6]·4H2O (I), [Cr(ur)6][Co(C2O4)3]·3.5H2O (II), [Cr(ur)6][Fe(CN)6]·4H2O (III), [Cr(ur)6][Fe(C2O4)3]·2H2O (IV) and urea (ur) was studied (ur = urea, H2NCONH2). Thermal decomposition was carried out by the TG-MS method and method of static experiments in the reducing atmosphere at a 1-h exposure. The final thermolysis products are characterized by elemental analysis, XDR, IR spectrometry, SEM, the specific surface area (SBET) of the samples. The porous structure of the samples was determined. Cr2O3 + Co0 are formed as a result of thermal reduction of I, II, Cr2O3 + Fe0 + Fe2O3 for III, FeCr2O4 + Fe0 for IV. The replacement of CN− ligands by C2O4 2− ligands leads to an increase in the specific surface by a factor of ~ 2. Catalytically activity of Co-containing degradation products is demonstrated in the model catalytic decomposition of H2O2. The relationship between SBET and the obtained values of the rate constants of the reaction is not observed. Fe-containing samples are not catalytically active.
KW - Catalytic decomposition HO
KW - Cyanocomplexes
KW - Double complex compounds
KW - Thermal decomposition
KW - Urea
KW - OXIDATIVE THERMOLYSIS
KW - DECOMPOSITION
KW - BINARY COMPLEXES
KW - Catalytic decomposition H2O2
KW - NANOCOMPOSITES
KW - CATALYTIC-PROPERTIES
KW - PRODUCTS
KW - BIOLOGICAL-ACTIVITY
KW - GREEN SYNTHESIS
KW - X-RAY
KW - PRECURSORS
UR - http://www.scopus.com/inward/record.url?scp=85048291292&partnerID=8YFLogxK
U2 - 10.1007/s10973-018-7428-z
DO - 10.1007/s10973-018-7428-z
M3 - Article
AN - SCOPUS:85048291292
VL - 134
SP - 253
EP - 260
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
SN - 1388-6150
IS - 1
ER -
ID: 13923911