کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1664837 1518021 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of the thickness of sputtered gadolinia-doped ceria as a cathodic interlayer in solid oxide fuel cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Effect of the thickness of sputtered gadolinia-doped ceria as a cathodic interlayer in solid oxide fuel cells
چکیده انگلیسی


• Gadolinia-doped ceria was used as a cathodic interlayer in solid oxide fuel cells.
• Sputter was used to deposit gadolinia-doped ceria.
• Gadolinia-doped ceria interlayer improved the electrochemical performance.
• 100 nm or thicker gadolinia-doped ceria showed a full functionality as interlayer.

Sputtered gadolinia-doped ceria (GDC) film was introduced as the cathodic interlayer between an yttria-stabilized zirconia (YSZ) pellet and a Pt cathode in solid oxide fuel cells (SOFCs). The fuel cells with none, 50, 100 and 150 nm thick GDC interlayers were fabricated to investigate the effect of the thickness of the GDC interlayer. The performances of the SOFCs with the 100 and 150 nm thick GDC interlayers operated at 450 °C showed the highest performance. Through electrochemical impedance analysis, it was visualized that the GDC interlayer significantly reduced the faradaic resistance of the SOFC. The degradation of the performance from the increased ohmic resistance by adding the GDC interlayer was negligible. From the topographical images scanned by atomic force microscope, it was observed that the 50 nm thick GDC interlayer did not perfectly cover the surface of the YSZ pellet, resulting in incomplete performance enhancement by the sputtered GDC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 584, 1 June 2015, Pages 120–124
نویسندگان
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