Synthesis of Nano-structured Ni-Co-Al Hydrotalcites and Derived Mixed Oxides

被引：8
作者：
Salem, M. Abdus [1 ]
Lwin, Ye [1 ]
Sufian, Suriati [1 ]
机构：
[1] Univ Teknol PETRONAS, Dept Chem Engn, Tronoh 31750, Perak, Malaysia
来源：
ADVANCED MATERIALS ENGINEERING AND TECHNOLOGY | 2012年 / 626卷
关键词：
Coprecipitation; Hydrotalcite; Mixed oxides; Nanosized particles; LAYERED DOUBLE HYDROXIDES; MG; SIZE; DECOMPOSITION; CATALYSTS; CU;
D O I：
10.4028/www.scientific.net/AMR.626.173
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nano-structured hydrotalcite-like compounds that contain nickel, cobalt and aluminum have been synthesized by conventional coprecipitation method without using any surfactants or templating agents. The structure and morphology of the coprecipitated nano hydrotalcites and its derived mixed oxides were characterized by powder X-ray diffraction (XRD), Fourier-transformed Infrared (FTIR) spectroscopy, field-emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), and nitrogen adsorption-desorption techniques. The results show that the synthesized materials exhibited micro-meso-pore networks. The cobalt-rich calcined hydrotalcites are generally amorphous, having a coral-like morphology whereas nickel-rich hydrotalcites show hexagonal plate-like morphology. The presence of nickel in mixed oxides catalyzed the reduction of Co-Al-O spinels. The Fast Fourier Transform (FFT) analysis of HRTEM revealed the inter planner distances of the crystal of hydrotalcite.
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页码：173 / 177
页数：5
相关论文
共 26 条
  • [1] Preparation of Co-Al layered double hydroxides by the hydrothermal urea method for controlled particle size
    Arai, Yuki
    Ogawa, Makoto
    [J]. APPLIED CLAY SCIENCE, 2009, 42 (3-4) : 601 - 604
  • [2] Bergaya F, 2006, DEV CLAY SCI, V1, P1
  • [3] Braterman P.S., 2004, Handbook of layered materials, Ed, P373
  • [4] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS
    Cavani, F.
    Trifiro, F.
    Vaccari, A.
    [J]. CATALYSIS TODAY, 1991, 11 (02) : 173 - 301
  • [5] Catalysis by layered materials: A review
    Centi, Gabriele
    Perathoner, Siglinda
    [J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 107 (1-2) : 3 - 15
  • [6] Chmielarz L, 2003, THERMOCHIM ACTA, V395, P225
  • [7] Structural aspects of layered double hydroxides
    Evans, DG
    Slade, RCT
    [J]. LAYERED DOUBLE HYDROXIDES, 2006, 119 : 1 - 87
  • [8] Co-Ni Catalysts Derived from Hydrotalcite-Like Materials for Hydrogen Production by Ethanol Steam Reforming
    He, Li
    Berntsen, Helene
    Ochoa-Fernandez, Esther
    Walmsley, John C.
    Blekkan, Edd A.
    Chen, De
    [J]. TOPICS IN CATALYSIS, 2009, 52 (03) : 206 - 217
  • [9] Catalytic Decomposition of Methane Over M-Co-Al Catalysts (M = Mg, Ni, Zn, Cu)
    Hermes, Natanael A.
    Lansarin, Marla A.
    Perez-Lopez, Oscar W.
    [J]. CATALYSIS LETTERS, 2011, 141 (07) : 1018 - 1025
  • [10] Systematic control of size, shape, structure, and magnetic properties of uniform magnetite and maghemite particles
    Itoh, H
    Sugimoto, T
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 265 (02) : 283 - 295
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