Importance of the interlayer orientation in borate-intercalating layered double hydroxides

AY, AHMET

doi:10.1007/s10973-010-1087-z

Importance of the interlayer orientation in borate-intercalating layered double hydroxides

Atıf İçin Kopyala

AY A. N.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.103, sa.3, ss.897-902, 2011 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 103 Sayı: 3
Basım Tarihi: 2011
Doi Numarası: 10.1007/s10973-010-1087-z
Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.897-902
Hacettepe Üniversitesi Adresli: Evet

Özet

Thermal decomposition kinetics and mechanism of layered double hydroxides (LDHs) intercalating different amounts and types of borate ions were studied using Coats-Redfern integral and Achar differential methods. The results revealed that the Coats-Redfern integral method is more appropriate than the Achar differential method for evaluation of the nonisothermal thermogravimetric decomposition data. The first-order Avrami-Erofe'ev A(1) mechanism was found to be the best fitting kinetic model for almost all samples. In addition to the amount and type of the intercalated borate ion, interlayer orientation was also of importance in determining the chemical and thermal stabilities and hence the decomposition kinetics of the studied compounds.