한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제37권8호
  • /
  • Pages.799-804
  • /
  • 2000
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

전하적정법에 의한 (${Co_{1-x}}{Cu_x}$)$_{1-\delta}$ O의 산소 부정비량 측정

Coulometric Titration Study on the Nonstoichiometry in Copper Doped Cobaltous Oxide ((${Co_{1-x}}{Cu_x}$)$_{1-\delta}$ O

  • 이종호 (Institute of Phys. Chem., Darmstadt University of Technology, 한국과학기술연구원 세라믹공정연구센터) ;
  • ;
  • ;
  • 이해원 (한국과학기술연구원 세라믹공정연구센터)
  • ;
  • Michael Schroeder (Institute of Phys. Chem., Darmstadt University of Technology) ;
  • Manfred Martin (Institute of Phys. Chem., Darmstadt University of Technology) ;
  • 발행 : 2000.08.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Coulometric titration experiments have been done for copper doped cobaltous oxide (Co1-xCux)1-$\delta$ O with various dopant concentrations. We present the obtained experimental data and compare our results to those of previous thermogravimetric investigation. The experimental data are fitted by theoretical calculations based on various defect models. For this modeling, we considered different types fo major defects like copper in substitutional and interstitial lattice sites as well as copper vacancy. We also introduced the copper evaporation effect during titration experiment into our consideration.

키워드

참고문헌

  1. J. Phys. Chem. Solids v.30 Electrical Conduction in Li-Doped CoO A. J. Bosman;C. Crevecoeur
  2. J. Phys. Chem. Solids v.46 no.2 Diffusion and Correlation Effects in Iron-Doped CoO K. Hoshino;N. L. Peterson
  3. Solid State Ionics v.12 Transport Properties in Pure and Lithum Doped Cobaltous Oxide G. Petot-Ervas;P. Ochin;B. Sossa
  4. J. Electrochem. Soc. v.131 no.1 Defect Structure and Electrical Properties of Undoped and Cr-Doped CoO J. Nowotny;I. Sikora;M. Rekas
  5. J. Phy. Chem. Solids v.30 no.6 Oxygen Self-Diffusion in Undoped and Doped Cobaltous Oxide W. K. Chen;R. A. Jackson
  6. Metallurgy and Faraday Eng. v.20 no.1 Diffusion and Demixing in Heterovalently Doped CoO M. Martin
  7. Phil. Mag. v.A68 Tracer Diffusion and Defect Structure in Ga-Doped CoO R. Schmackpfeffer;M. Martin
  8. Thermogravimetrische Untersuchungen zur Defektstruktur einiger Dotierter Metalloxide K. N. Kraft
  9. The Kor. J. Ceram. v.4 no.2 A Thermogravimetric Study of the Non-stoichiometry of Iron-Doped Nickel Oxide $(Ni_{1-x}Fe_x)_{1-{\delta}}O$ K. N. Kraft;M. Martin
  10. Solid State Ionics v.86-88 Nonstoichiometry $({\delta})$ of $(Mg_xFe_{1-x})_{3-{\delta}}O_4$ Ferrite Spinel S.-H. Kang;H. I. Yoo
  11. J. Nucl. Mater. v.277 Non-stoichiometry, Electrical Conductivity and Defect Structure of Hyper-stoichiometric $UO_{2+x}$ at 1000℃ S.-H. Kang;J.-H. Lee;H.-I. Yoo;H. S. Kim;Y. W. Lee
  12. Zur Electrischen Leitfaehigkeit und Entmischung von Kupfer Dotiertem Cobalt(Ⅱ)oxid N. Hilbrandt
  13. J. Phys. Chem. Solids. On the Defect Structure of Copper-Doped Cobalt Oxide $(Co_{1-u}Cu_u)_{1-{\delta}}O$ M. Schroeder;J. H. Lee;N. Hilbrandt;M. Martin