期刊
RUSSIAN CHEMICAL BULLETIN
卷 62, 期 11, 页码 2349-2361出版社
SPRINGER
DOI: 10.1007/s11172-013-0341-5
关键词
layered double hydroxide; mixed oxides; structure reconstruction; magnesium; zinc and nickel cations
Influence of the nature of a doubly charged cation in the layered double hydroxides (LDH) on the conditions of formation and properties of mixed oxide phase MAlOx (M = Mg2+, Zn2+ and Ni2+), its ability to reconstruct the structure of the original precursor under contact with water has been studied. Hydrotalcite-like compounds and corresponding oxides with different M2+ : M3+ ratio were investigated by XRD, TEM, TG-DTG-DTA, Al-27 NMR, N-2 adsorption, and differentiating dissolution. It has been found that the nature of the cation M2+ influences the conditions of LDH thermal decomposition, structural and textural characteristics of the formed mixed oxides. The obtained data can be used to synthesize the oxide supports with desired acid-base and adsorption properties.
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