A direct carbon solid oxide fuel cell operated on a plant derived biofuel with natural catalyst

作者：Cai, Weizi; Zhou, Qian; Xie, Yongmin; Liu, Jiang^*; Long, Guohui; Cheng, Shuang; Liu, Meilin

来源：Applied Energy, 2016, 179: 1232-1241.

DOI：10.1016/j.apenergy.2016.07.068

• Biofuel
• Natural catalyst
• Solid oxide fuel cell
• Boudouard reaction
• Direct carbon

Biochar derived from orchid tree leaves is utilised as the fuel of a direct carbon solid oxide fuel cell (DC-SOFC), with yttrium stabilized zirconia (YSZ) as electrolyte and cermet of silver and gadolinium doped ceria (Ag-GDC) as the material of both cathode and anode, operating without any liquid medium or feeding gas. The performance of the DC-SOFC operated on the leaf char is higher than that operated on the best reported carbon fuel for DC-SOFCs, Fe-loaded activated carbon. XRD, Raman spectroscopy, SEM and EDX are applied to characterize the leaf char. It turns out that the leaf char is with porous structure and there is much Ca along with some K and Mg uniformly distributing in the leaf char. The effects of the naturally existing alkaline earth metal and alkaline metal and their distribution on the performance of the DC-SOFCs operated on the leaf char are analyzed in detail.

• 出版日期2016-10-1
• 单位吉林农业大学; 江西理工大学; 华南理工大学