Characterization and performance of fuel cells usingBaCe0.9Y0.1O3-delta electrolyte modified by an ion beam
Characterization and performance of fuel cells usingBaCe0.9Y0.1O3-delta electrolyte modified by an ion beam
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使用离子束改性BaCe0.9Y0.1O3-δ电解质的燃料电池的表征和性能
DOI：
10.1007/s12540-012-3011-5
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发表时间：
2012
影响因子：
3.5
通讯作者：
CY
中科院分区：
文献类型：
--
作者：
Kim;JH; Nagata;S; Shikama;T; Kang;CY
为了研究离子辐照对改善燃料电池性能的影响，用总注量分别为0、1×10~(17)和5×10~(17)离子/厘米~2的Ar~+离子束辐照样品。在离子束处理后，对样品近表面的氢浓度和电导率的测量以及扫描电子显微镜的观察表明，由于辐照而形成的氧空位的增加不仅有助于增加表面的氢浓度，而且有助于改善质子的电导率。这些结果表明，这种方法对提高质子导电Y掺杂BaCeO_3−δ的质子电导率是有效的。此外，利用不同注量的离子束辐照Y掺杂的BaCeO_3-−δ-S制备了单元燃料电池。从它们的I-V和I-P曲线可以看出，随着Ar~+注量的增加，电流密度和功率密度都有所提高。
To investigate the effects of ion irradiation for improving the performance of a fuel cell, specimens were irradiated with Ar+ion beams at total fluences of 0, 1×1017and 5×1017ions/cm2. After the ion-beam processing, measurements of the hydrogen concentration at the near-surface and of the electrical conductivity of the specimens, along with scanning electron microscopy observations, showed that the increase in oxygen vacancies formed due to irradiation contributed not only to an increase in hydrogen concentration on the surface but to an improvement in proton conductivity. These results suggest that this method is effective for improving the proton conductivity in proton-conducting Y-doped BaCeO3−δ. Additionally, unit fuel cells were fabricated using the Y-doped BaCeO3−δs irradiated by the ion beam with different fluences. It was observed from their I-V and I-P curves, that with the increase in Ar+fluence, both the current density and power density were improved.