Thermal decomposition study of hydrotalcite-like compounds

被引：4
|
作者：
Nebot-Díaz, I [1 ]
Rives, V
Rocha, J
Carda, JB
机构：
[1] Univ Jaume 1, Dept Quim Inorgan & Organ, Castellon, Spain
[2] Univ Salamanca, Dept Quim Inorgan, E-37008 Salamanca, Spain
[3] Univ Aveiro, Dept Quim, P-3800 Aveiro, Portugal
来源：
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2002年 / 41卷 / 04期
关键词：
hydrotalcite; spinel; thermal decomposition;
D O I：
10.3989/cyv.2002.v41.i4.674
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Thermal decomposition of hydrotalcite-like compounds with formula MgxAl1-x(CO3)(x/2)(.)nH(2)O has been studied varying the molar ratio (x) between Mg and Al cations. Compounds synthesized by coprecipitation method at fixed pH, have been fired at different temperatures between 500 and 1200 degreesC with different remaining times. This study has been carried out by Differential Thermal and Thermogravimetric Analysis (DTA/TG), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Al-27 Nuclear Magnetic Resonance (Al-27-MAS-NMR) Main results show that the optimum molar ratio (x) to hydrotalcite phase formation is between 0.20 and 0.35, obtaining spinel (MgAl2O4) and Periclase (MgO) as the decomposition compounds.
引用
收藏
页码：411 / 414
页数：4
相关论文
共 50 条
  • [41] A Study of Catalysis of Copper-Aluminium Hydrotalcite-like Compounds in the Phenol Hydroxylation
    Zhu, K.-Z.
    Liu, C.-B.
    Ye, X.-K.
    Wu, Y.
    Huaxue Xuebao/Journal of Chemistry, 56 (01):
  • [42] Dehydrochlorination behavior of a chloride ion-intercalated hydrotalcite-like compound during thermal decomposition
    Kameda, Tomohito
    Yoshioka, Toshiaki
    Watanabe, Kouji
    Uchida, Miho
    Okuwaki, Akitsugu
    APPLIED CLAY SCIENCE, 2007, 35 (3-4) : 173 - 179
  • [43] Catalytic oxidation of cyclohexene with molecular oxygen on hydrotalcite-like compounds
    Guo, Jun
    Wang, Ning
    Jiao, Qing-ze
    Jiang, Da-zhen
    Yang, Guang-hui
    Min, En-ze
    Chemical Research in Chinese Universities, 1995, 11 (03)
  • [44] Synthesis Method and Its Influence Factors of Hydrotalcite-like Compounds
    Xue, Hongdan
    Wang, Fuli
    Li, Guoli
    Liu, Pu
    Bai, Yongqing
    Wang, Ke
    MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4, 2013, 690-693 : 351 - +
  • [45] Sorption of terephthalate anions by calcined and uncalcined hydrotalcite-like compounds
    Crepaldi, EL
    Tronto, J
    Cardoso, LP
    Valim, JB
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 211 (2-3) : 103 - 114
  • [46] Adsorption of carbon dioxide on hydrotalcite-like compounds of different compositions
    Aschenbrenner, Ortrud
    McGuire, Paul
    Alsamaq, Suzanne
    Wang, Jiawei
    Supasitmongkol, Somsak
    Al-Duri, Bushra
    Styring, Peter
    Wood, Joseph
    CHEMICAL ENGINEERING RESEARCH & DESIGN, 2011, 89 (09): : 1711 - 1721
  • [47] Photocatalytic degradation of phenol using MgAlSn hydrotalcite-like compounds
    Mancipe, Sonia
    Tzompantzi, Francisco
    Rojas, Hugo
    Gomez, Ricardo
    APPLIED CLAY SCIENCE, 2016, 129 : 71 - 78
  • [48] HYDROTALCITE-LIKE COMPOUNDS AS POTENTIAL SORBENTS OF PHENOLS FROM WATER
    ULIBARRI, MA
    PAVLOVIC, I
    HERMOSIN, MC
    CORNEJO, J
    APPLIED CLAY SCIENCE, 1995, 10 (1-2) : 131 - 145
  • [49] ON THE THERMODYNAMIC TREATMENT FOR ANION-EXCHANGE IN HYDROTALCITE-LIKE COMPOUNDS
    TSUJI, M
    MAO, G
    TAMAURA, Y
    CLAYS AND CLAY MINERALS, 1992, 40 (06) : 742 - 743
  • [50] Surface complexation reactions of inorganic anions on hydrotalcite-like compounds
    Morimoto, Kazuya
    Anraku, Sohtaro
    Hoshino, Jun
    Yoneda, Tetsuro
    Sato, Tsutomu
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2012, 384 : 99 - 104
12345