Physicochemical properties of proton-conductive Ba(Zr0.1Ce0.7Y0.1Yb0.1)O3−δ solid electrolyte in terms of electrochemical performance of solid oxide fuel cells
Physicochemical properties of proton-conductive Ba(Zr0.1Ce0.7Y0.1Yb0.1)O3−δ solid electrolyte in terms of electrochemical performance of solid oxide fuel cells
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质子传导Ba(Zr0.1Ce0.7Y0.1Yb0.1)O3−δ固体电解质的物理化学性质对固体氧化物燃料电池电化学性能的影响
DOI：
10.1016/j.ijhydene.2016.07.265
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发表时间：
2016
影响因子：
7.2
通讯作者：
K. Sasaki
中科院分区：
文献类型：
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作者：
T. Somekawa;Y. Matsuzaki;Y. Tachikawa;H. Matsumoto;S. Taniguchi;K. Sasaki
以前，大多数质子导电电解质的SOFC的研究进行，以实现低温操作。在本研究中，我们探讨一种质子传导电解质，以实现高效率的固体氧化物燃料电池。为此，测量了Ba（Zr0.1Ce0.7Y0.1Yb0.1）O3−δ的总电导率在湿和干条件下对氧分压和温度的依赖性。根据测量数据，我们分析了550-900 °C温度范围内离子电流密度与电子电流密度的比值。假设电解质的面积比电阻和外部电流密度分别为0.383 Ω cm-2和0.25 A cm-2，则计算出在550 °C和600 °C下由少数载流子引起的漏电流密度分别为外部电流密度的5.4%和9.7%。该研究开发了一种评价质子传导电解质材料的方法，并为开发高效SOFC的新材料建立了指导方针。
Previously, most studies of proton-conductive electrolytes for SOFCs were conducted to achieve lower-temperature operation. In this study, we investigate a proton-conductive electrolyte to realize high-efficiency SOFCs. To this end, the dependencies of the total conductivity of Ba(Zr0.1Ce0.7Y0.1Yb0.1)O3−δon the oxygen partial pressure and temperature under wet and dry conditions were measured. Based on the measurement data, we analyzed the ratio of ionic current density to electronic current density in the temperature range of 550–900 °C. Assuming that the area-specific resistance of the electrolyte and the external current density were 0.383 Ω cm2and 0.25 A cm−2, respectively, the leakage current densities caused by the minority carriers were calculated to be 5.4% and 9.7% of the external current density at 550 °C and 600 °C, respectively. This study developed a method to evaluate proton-conductive electrolyte materials and established guidelines for the development of new materials for high-efficiency SOFCs.
影响因子：
3.2
作者：
Masatsugu Oishi;Satoshi Akoshima;K. Yashiro;Kazuhisa Sato;J. Mizusaki;T. Kawada
通讯作者：
Masatsugu Oishi;Satoshi Akoshima;K. Yashiro;Kazuhisa Sato;J. Mizusaki;T. Kawada
影响因子：
--
作者：
Matsumoto, Hiroshige;Kawasaki, Yuya;Ishihara, Tatsumi
通讯作者：
Ishihara, Tatsumi
钪和钇共掺杂提高三价阳离子掺杂锆酸钡的晶界电导率
DOI：
--
发表时间：
2008
期刊：
Journal of Materials Chemistry (in press)
影响因子：
--
作者：
富尾悠索;木津谷茂樹;宮本吾郎;古原忠;S. Imashuku
通讯作者：
S. Imashuku