کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
192518 459744 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical and stability performance of anode-supported solid oxide fuel cells with strontium- and magnesium-doped lanthanum gallate thin electrolyte
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Electrical and stability performance of anode-supported solid oxide fuel cells with strontium- and magnesium-doped lanthanum gallate thin electrolyte
چکیده انگلیسی

Anode-supported solid oxide fuel cells (SOFCs) comprising NiO–samarium-doped ceria (SDC) (Sm0.2Ce0.8O1.9) composite anode, thin tri-layer electrolyte, and La0.6Sr0.4Co0.8Fe0.2O3 (LSCF)–La0.9Sr0.1Ga0.8Mg0.2O3−δ (LSGM) composite cathode were fabricated. The thin tri-layer consisting of an 11-μm thick LSGM electrolyte layer and a 12-μm thick La0.4Ce0.6O1.8 (LDC) layer on each side of the LSGM was prepared by centrifugal casting and co-firing technique. The performance of the cells operated with humidified H2 as fuel and ambient air as oxidant showed a maximum power density of 1.23 W cm−2 at 800 °C. A stability test of about 100 h was carried out and some deterioration of output power was observed, while the open circuit voltage (OCV) kept unchanged. Impedance measurements showed that both the electrolyte ohmic resistance and the electrode polarization increased with time and the latter dominated the degradation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 53, Issue 13, 20 May 2008, Pages 4420–4427
نویسندگان
, , ,