Abstract
Series ol layered double hydroxides (LDHs) of the hydrotalcite family simultaneously containing iron and cobalt cations in the positions of triply charged metal ions of the brucite-like sheets, were prepared by coprecipitation of the components from solution in an oxidative medium. The materials prepared have been characterized by X-ray powder diffraction, temperature-programmed reduction (TPR), and temperature-programmed destruction (TPD); their behavior during dehydration-rehydration cycling was studied. The layered double hydroxides were shown to be reducible when heated in flowing hydrogen. Heating to 600°C induced the reduction of cobalt and iron to doubly charged cations, and at temperatures higher than 600°C the reduction yielded the metals. The thermal destruction products of the LDHs prepared are capable of recovering their layered structure when reacted with aqueous sodium carbonate solutions; however, this capability is reduced as the cobalt content in the sample increases.
| Original language | English |
|---|---|
| Pages (from-to) | 1403-1410 |
| Number of pages | 8 |
| Journal | Russian Journal of Inorganic Chemistry |
| Volume | 59 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Jan 2014 |
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- Inorganic Chemistry
Cite this
New magnesium cobalt iron double hydroxides with hydrotalcite structure : Synthesis and characterization. / Ryl'Tsova, I. G.; Nestroinaya, O. V.; Lebedeva, O. E.; Vorontsova, O. A.; Kosova, N. I.; Kurzina, I. A.
In: Russian Journal of Inorganic Chemistry, Vol. 59, No. 12, 01.01.2014, p. 1403-1410.Research output: Contribution to journal › Article
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TY - JOUR
T1 - New magnesium cobalt iron double hydroxides with hydrotalcite structure
T2 - Synthesis and characterization
AU - Ryl'Tsova, I. G.
AU - Nestroinaya, O. V.
AU - Lebedeva, O. E.
AU - Vorontsova, O. A.
AU - Kosova, N. I.
AU - Kurzina, I. A.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Series ol layered double hydroxides (LDHs) of the hydrotalcite family simultaneously containing iron and cobalt cations in the positions of triply charged metal ions of the brucite-like sheets, were prepared by coprecipitation of the components from solution in an oxidative medium. The materials prepared have been characterized by X-ray powder diffraction, temperature-programmed reduction (TPR), and temperature-programmed destruction (TPD); their behavior during dehydration-rehydration cycling was studied. The layered double hydroxides were shown to be reducible when heated in flowing hydrogen. Heating to 600°C induced the reduction of cobalt and iron to doubly charged cations, and at temperatures higher than 600°C the reduction yielded the metals. The thermal destruction products of the LDHs prepared are capable of recovering their layered structure when reacted with aqueous sodium carbonate solutions; however, this capability is reduced as the cobalt content in the sample increases.
AB - Series ol layered double hydroxides (LDHs) of the hydrotalcite family simultaneously containing iron and cobalt cations in the positions of triply charged metal ions of the brucite-like sheets, were prepared by coprecipitation of the components from solution in an oxidative medium. The materials prepared have been characterized by X-ray powder diffraction, temperature-programmed reduction (TPR), and temperature-programmed destruction (TPD); their behavior during dehydration-rehydration cycling was studied. The layered double hydroxides were shown to be reducible when heated in flowing hydrogen. Heating to 600°C induced the reduction of cobalt and iron to doubly charged cations, and at temperatures higher than 600°C the reduction yielded the metals. The thermal destruction products of the LDHs prepared are capable of recovering their layered structure when reacted with aqueous sodium carbonate solutions; however, this capability is reduced as the cobalt content in the sample increases.
UR - http://www.scopus.com/inward/record.url?scp=84913590155&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84913590155&partnerID=8YFLogxK
U2 - 10.1134/S0036023614120213
DO - 10.1134/S0036023614120213
M3 - Article
AN - SCOPUS:84913590155
VL - 59
SP - 1403
EP - 1410
JO - Russian Journal of Inorganic Chemistry
JF - Russian Journal of Inorganic Chemistry
SN - 0036-0236
IS - 12
ER -