Preparation and Thermal Decomposition Mechanism of Zn2+-Doped Mg,Al-Hydrotalcite Nanocrystalline

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The highly pure nanocrystalline Mg,Al-hydrotalcite with Zn2+ doping was synthesized by the one-step liquid reaction method at atmospheric pressure. And the preparation of the Zn2+-doped Mg,Al-hydrotalcite nanocrystalline was investigated according to the results of XRD, TEM, IR and DSC. Moreover, based on the DSC test results, the thermal mechanism functions of the Mg,Al-hydrotalcite with Zn2+ doping are studied in detail after calculation and comparison.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

2071-2073

DOI:

10.4028/www.scientific.net/KEM.336-338.2071

Citation:

Q. L. Ren and Q. Luo, "Preparation and Thermal Decomposition Mechanism of Zn2+-Doped Mg,Al-Hydrotalcite Nanocrystalline", Key Engineering Materials, Vols. 336-338, pp. 2071-2073, 2007

Online since:

April 2007

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$38.00

[1] H. Catherine, R. Andre, C. Rudi and C. Rudi: Mater. Lett. Vol. 46 (2000), p.160.

[2] B.F. Fu: J. Guangxi Chem. y Industry Vol. 28 (1999), p.29.

[3] Z.Z. Shi, R.Z. Hu and S.L. Gao: Thermal Analysis Kinetics (Science Press, China, 2001). Table1 The choice data after calculating and comparing (stage II) Integral method Differential method β �RC/min) Function No. E (kJ/mol) LnA (1/s) r SD E (kJ/mol) LnA (1/s) r SD.

[11] 177. 73 19. 07 0. 9975 0. 23931 181. 14 22. 11 0. 9857 0. 34886.

[29] 206. 90 23. 73 0. 9883 0. 13498 209. 97 21. 06 0. 9905 0. 11220.

[11] 174. 52 24. 90 0. 9796 0. 21378 195. 82 23. 07 0. 9798 0. 16154.

[29] 226. 98 22. 21 0. 9906 0. 18462 234. 83 22. 66 0. 9934 0. 10327.

[11] 175. 11 29. 93 0. 9801 0. 12752 185. 63 21. 00 0. 9904 0. 27801.

[29] 229. 78 22. 11 0. 9902 0. 15119 226. 67 22. 89 0. 9938 0. 10367.

[11] 171. 55 18. 49 0. 9802 0. 12836 186. 36 18. 97 0. 9708 0. 20013 2. 5.

[5] [10] [20] [29] 227. 82 24. 76 0. 9897 0. 10775 238. 06 19. 99 0. 9899 0. 13008.

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