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CH_4-fueled metal-supported solid oxide fuel cells (CH_4-MS-SOFCs) are propitious as CH_4 is low-priced and readily available, and its renewable production is possible, such as biomethane. However, th...e current CH_4-MS-SOFCs suffer from either poor power density or short durable operation, which is ascribed to the low catalytic activity and poor coking tolerance of the metallic anode support. Herein, we have deliberately designed and synthesized a highly active nanocomposite catalyst, Sm-doped CeO_2-supported Ni, as the internal steam methane reforming catalyst, to optimize CH_4-MS-SOFCs. Both power densities and durability of optimized CH_4-MS-SOFCs have been dramatically enhanced compared to the pristine CH_4-MS-SOFCs. The optimized CH_4-MS-SOFCs deliver the highest performances among all zirconia-based CH_4-MS-SOFCs. Furthermore, the operating temperature has been reduced to 600 °C. At 600 °C, a viable peak power density of >350 mW/cm^2 is achieved, which is more than three times as high as the pristine CH_4-MS-SOFCs.Furthermore, the optimized CH_4-MS-SOFC achieves >1000 h of stable operation.続きを見る
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Mendeley出力
