Determination of the enthalpy of hydration of oxygen vacancies in Y-doped BaZrO3 and BaCeo3 by TG-DSC

被引：54
|
作者：
Kjolseth, Christian [1 ]
Wang, Lin-Yung [1 ,2 ]
Haugsrud, Reidar [1 ]
Norby, Truls [1 ]
机构：
[1] Univ Oslo, Dept Chem, FERMiO, Ctr Mat Sci & Nanotechnol, NO-0349 Oslo, Norway
[2] Natl Taiwan Univ, Dept Chem, Taipei 10764, Taiwan
来源：
SOLID STATE IONICS | 2010年 / 181卷 / 39-40期
关键词：
Thermodynamics; Defects; Perovskites; Thermogravimetry; Calorimetry; WATER-VAPOR SOLUBILITY; PROTON CONDUCTIVITY; ELECTRICAL-CONDUCTIVITY; DEFECT ASSOCIATION; BARIUM ZIRCONATE; OXIDES; THERMOGRAVIMETRY; CA; BAZR0.9Y0.1O3-DELTA; CALORIMETRY;
D O I：
10.1016/j.ssi.2010.10.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Simultaneous thermogravimetry (TG) and differential scanning calorimetry (DSC), TG-DSC, have been applied for the first time to measure directly the standard molar enthalpy changes of a defect chemical reaction, here the hydration of oxygen vacancies in two proton conducting perovskite oxides, BaCe0.9Y0.1O3-delta (BZY10) and BaCe0.9Y0.1O3-delta (BCY10). The measurements were done isothermally by parallel recording of the weight and heat exchanges associated with step changes in the water vapour pressure. The obtained molar hydration enthalpy of BZY10 was investigated at 300-900 degrees C and was found constant at -81 +/- 4 kJ mol(-1) (per mole of H2O) over this range. The molar hydration enthalpy of BCY10 was investigated at 600 degrees C and found to be -170 +/- 6 kJ mol(-1). Both values are in good agreement with the majority of literature data for the two materials obtained more indirectly by equilibrium methods. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1740 / 1745
页数：6
相关论文
共 50 条
  • [1] Strain-induced tunable energy barrier of proton diffusion in Y-doped BaCeO3 and Y-doped BaZrO3
    Niu, Hongwei
    Jing, Yuhang
    Sun, Yi
    Guo, Licheng
    Aluru, Narayana R.
    Li, Weiqi
    Yang, Jianqun
    Li, Xingji
    [J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2022, 46 (06) : 7816 - 7824
  • [2] Preparation of Doped BaZrO3 and BaCeO3 from Nanopowders
    Pornprasertsuk, Rojana
    Yuwapattanawong, Chonhathai
    Permkittikul, Sirorat
    Tungtidtham, Thanawan
    [J]. INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, 2012, 13 (10) : 1813 - 1819
  • [3] Preparation of doped BaZrO3 and BaCeO3 from nanopowders
    Rojana Pornprasertsuk
    Chonhathai Yuwapattanawong
    Sirorat Permkittikul
    Thanawan Tungtidtham
    [J]. International Journal of Precision Engineering and Manufacturing, 2012, 13 : 1813 - 1819
  • [4] Thermophysical properties of BaZrO3 and BaCeO3
    Yamanaka, S
    Fujikane, M
    Hamaguchi, T
    Muta, H
    Oyama, T
    Matsuda, T
    Kobayashi, SI
    Kurosaki, K
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 359 : 109 - 113
  • [5] Transfer of Oxygen Vacancy and Proton in Y-doped BaZrO3
    Kim, Dae-Hee
    Jeong, Yong-Chan
    Park, Jong-Sung
    Kim, Byung-Kook
    Kim, Yeong-Cheol
    [J]. JOURNAL OF THE KOREAN CERAMIC SOCIETY, 2009, 46 (06) : 695 - 699
  • [6] Toughening of Y-doped BaZrO3 proton conducting electrolytes by hydration
    Sazinas, Rokas
    Einarsrud, Mari-Ann
    Grande, Tor
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (12) : 5846 - 5857
  • [7] Polarons and electrical leakage in BaZrO3 and BaCeO3
    Rowberg, Andrew J. E.
    Li, Meng
    Ogitsu, Tadashi
    Varley, Joel B.
    [J]. PHYSICAL REVIEW MATERIALS, 2023, 7 (01)
  • [8] Proton conduction at the surface of Y-doped BaCeO3
    Hibino, T
    Hashimoto, A
    Suzuki, M
    Sano, M
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (46): : 11399 - 11401
  • [9] Hydration induced mechanical degradation in the Y-doped BaZrO3 solid oxide
    Wang, Zhaoyang
    Jing, Yuhang
    Sun, Yi
    Li, Weiqi
    Yang, Jianqun
    Li, Xingji
    [J]. COMPUTATIONAL MATERIALS SCIENCE, 2024, 235
  • [10] Thermodynamic properties of BaCeO3 and BaZrO3 at low temperatures
    Ahrens, M
    Maier, J
    [J]. THERMOCHIMICA ACTA, 2006, 443 (02) : 189 - 196
12345