Novel cerium-containing layered double hydroxide

被引：0
作者：
Sergei N. Golovin
Maksim N. Yapryntsev
Irina G. Ryltsova
Alexey A. Veligzhanin
Olga E. Lebedeva
机构：
[1] Belgorod State National Research University,
[2] National Research Center Kurchatov Institute,undefined
来源：
Chemical Papers | 2020年 / 74卷
关键词：
Layered double hydroxides; Co-precipitation; Hydrothermal treatment; Cerium;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nickel–aluminum–cerium layered double hydroxide (LDH) in carbonate form was successfully synthesized by co-precipitation followed by hydrothermal treatment. The predetermined molar percentage was the following: Ni2+/(Al3+ + Ce3+) = 3 and Ce3+/(Al3+ + Ce3+) = 0.05. The XRD data indicated that the cerium-containing single-phase product with a hydrotalcite structure could be obtained by hydrothermal treatment for 48 h at 120 °C. The transmission electron microscopy analysis showed that the synthesized material consisted of plate-like particles typical for hydrotalcite-like compounds. The average particle size was about 65 nm. The X-ray absorption spectroscopy revealed cerium to be incorporated into the structure of LDH in two different forms, namely 69% of Ce3+ and 31% of Ce4+ co-existed in the structure.
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页码：367 / 370
页数：3
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