Synthesis, Structures and Properties of the Cerium Doped Hematite Co-existing with CeO2

DOI Web Site 被引用文献2件 参考文献49件
  • Bhuiyan Tarequl Islam
    Department of Applied Chemistry, Faculty of Engineering, Okayama University
  • Nakanishi Makoto
    Department of Applied Chemistry, Faculty of Engineering, Okayama University
  • Kusano Yoshihiro
    Collage of the Arts, Kurashiki University of Science and the Arts
  • Fujii Tatsuo
    Department of Applied Chemistry, Faculty of Engineering, Okayama University
  • Takada Jun
    Department of Applied Chemistry, Faculty of Engineering, Okayama University
  • Ikeda Yasunori
    Institute for Chemical Research, Kyoto University

この論文をさがす

抄録

Cerium doped hematite powders obtained by polymeric complex method following the hydrolysis of FeCl3·6H2O and Ce(NH4)2(NO3)6. X-ray diffraction pattern of cerium doped samples obtained at 1000°C∼1200°C for two hours in air revealed some solubility of cerium ion in α-Fe2O3 over the composition range of 5%∼15 at% that were characterized by the shifting of X-ray diffraction peaks compared with the internal silicon standard. X-ray Photoelectron Spectra investigations revealed the existence of Ce3+ ion at higher temperature. Unit cell parameters were found to expand due to the incorporation of cerium ions into the hematite lattice. Field Emission Scanning Electron Microscopy studies showed that the growth of particles was suppressed in the appearance of cerium ions into the α-Fe2O3 lattice. Fe2-xCexO3 exhibits much lower magnetization due to the incorporation of non-magnetic cerium ions into the α-Fe2O3. Spectroscopy measurement evidenced that cerium doped hematite samples exhibited brighter yellowish red color tone than that of pure α-Fe2O3.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (49)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ