کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1292334 1497926 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A SnO2-samarium doped ceria additional anode layer in a direct carbon fuel cell
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A SnO2-samarium doped ceria additional anode layer in a direct carbon fuel cell
چکیده انگلیسی


• SnO2/SDC is introduced as an extra anode layer in a direct carbon fuel cell.
• The fuel cell is tested under the fuel mode.
• The fuel cell achieves the highest output of 192 mW cm−2 at 750 °C.
• SnO2 is reduced by carbon under the fuel mode.
• The resistance of the cell remains almost unchanged after discharge.

The role of a SnO2-samarium doped ceria (SDC) additional anode layer in a direct carbon fuel cell (DCFC) with SDC-(Li0.67Na0.33)2CO3 composite electrolyte and lithiated NiO-SDC-(Li0.67Na0.33)2CO3 composite cathode is investigated and compared with a NiO-SDC extra anode layer. Catalytic grown carbon fiber mixed with (Li0.67Na0.33)2CO3 is used as a fuel. At 750 °C, the maximum power outputs of 192 and 143 mW cm−2 are obtained by the cells with SnO2-SDC and NiO-SDC layers, respectively. In the SnO2-SDC layer, the reduction of SnO2 and the oxidation of Sn happen simultaneously during the cell operation, and the Sn/SnO2 redox cycle provides an additional route for fuel conversion. The formation of an insulating dense interlayer between the anode and electrolyte layers, which usually happens in DCFCs with metal anodes, is avoided in the cell with the SnO2-SDC layer, and the stability of the cell is improved consequently.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 306, 29 February 2016, Pages 387–393
نویسندگان
, , ,