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Citation: ZHANG Hai-Yong, JING Xiao-Yan, WANG Jun, ZHANG Mi-Lin, DUAN Xue. Synthesis and Characterization of Magnetic Nanometer-sized Mg-Al Hydrotalcites[J]. Chinese Journal of Applied Chemistry, ;2002, 19(8): 734-737. shu

Synthesis and Characterization of Magnetic Nanometer-sized Mg-Al Hydrotalcites

1.
a Department of Chemical Engineering, Harbin Engineering University, Harbin 150001;
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b Key Laboratory of Science and Technology of Controllable Chemical Reaction, Education Ministry, Beijing University of Chemical Technology, Beijing

Corresponding author: ZHANG Mi-Lin,
Received Date: 5 November 2001
Available Online: 22 April 2002
Fund Project: 国家自然科学基金(20076003) (20076003)中石化总公司(X5000068) (X5000068)

The magnetic compounds were prepared from Mg-Al hydrotalcites by the method of co-precipitation, and the magnetic Mg-Al hydrotalcite particles sized in 20~50 nm were synthesized to give assembled layered magnetic materials. The influences of Mg/Fe(Ⅱ) molar ratio on the structure of hydrotalcites and its magnetic property were investigated by XRD, TEM, vibrating-sample magnetometer(VSM), TG-DTA and FT-IR. The results showed that the addition of magnetic substrates didn't change the typical characters of layered-structure and mass loss on heating. And the specific saturation magnetization of products increased linearly with the content of magnetic particles.
- magnetic property,
- nanometer,
- synthesis,
- Mg-Al hydrotalcite
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