A novel method to synthesize Cr2O3 nanopowders using EDTA as a chelating agent

被引：33
作者：
Aghaie-Khafri, M. [1 ]
Lafdani, M. H. Kakaei [1 ]
机构：
[1] KN Toosi Univ Technol, Fac Mech Engn, Tehran, Iran
来源：
POWDER TECHNOLOGY | 2012年 / 222卷
关键词：
Nanopowders; Oxide materials; Sol-gel processes; X-ray diffraction; SOLID THERMAL-DECOMPOSITION; CHROMIA NANOPARTICLES; OXIDE; COATINGS; SORPTION; SINGLE;
D O I：
10.1016/j.powtec.2012.02.024
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Chromium oxide nanopowders were successfully synthesized using Ethylenediaminetetraacetic acid (EDTA) as a chelating agent. The effects of process parameters such as pH and temperature were investigated. Cr2O3 nanopowders were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area measurements, differential thermal analysis (DTA) and Fourier transformed infrared (FT-IR) spectroscopy. The synthesized nanopowders were non-agglomerated and spherical. The surface area of Cr2O3 nanopowders was 81.05 m(2)/g. This is greater than one obtained by citrate gel method. The conditional formation constants for various species of EDTA were calculated. Furthermore, the major equations of the production of chromium-EDTA were derived. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：152 / 159
页数：8
相关论文
共 33 条
  • [1] Structural and catalytic activity studies of silver/chromia catalysts
    Abu-Zied, BM
    [J]. APPLIED CATALYSIS A-GENERAL, 2000, 198 (1-2) : 139 - 153
  • [2] A novel yeast bio-template route to synthesize Cr2O3 hollow microspheres
    Bai, Bo
    Wang, Pengpeng
    Wu, Le
    Yang, Li
    Chen, Zhihong
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2009, 114 (01) : 26 - 29
  • [3] SYNTHESIS, SINTERING, AND MAGNETIC-PROPERTIES OF NANOPHASE CR2O3
    BALACHANDRAN, U
    SIEGEL, RW
    LIAO, YX
    ASKEW, TR
    [J]. NANOSTRUCTURED MATERIALS, 1995, 5 (05): : 505 - 512
  • [4] PIGMENTS TO REFLECT THE INFRARED RADIATION FROM FIRE
    BERDAHL, P
    [J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1995, 117 (02): : 355 - 358
  • [5] The development of a thin Cr2O3 wear protective coating for the advanced digital recording system
    Bijker, MD
    Bastiaens, JJJ
    Draaisma, EA
    de Jong, LAM
    Sourty, E
    Saied, SO
    Sullivan, JL
    [J]. TRIBOLOGY INTERNATIONAL, 2003, 36 (4-6) : 227 - 233
  • [6] Brock T., 2000, European Coating Handbook
  • [7] Cr2O3, WO3 single and Cr/W binary oxide prepared by physical methods for gas sensing applications
    Cantalini, C
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (06) : 1421 - 1424
  • [8] Cullity B.D., 1978, ELEMENTS XRAY DIFFRA, V2nd, P102
  • [9] Synthesis and structure screening of nanostructured chromium oxide powders
    El-Sheikh, S. M.
    Mohamed, R. M.
    Fouad, O. A.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 482 (1-2) : 302 - 307
  • [10] WATER SORPTION IN RELATION TO SURFACE DEFECT STRUCTURE OF CALCINED CHROMIA GEL
    FAHIM, RB
    ZAKI, MI
    YACOUB, NH
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1982, 88 (02) : 502 - 511
1234