中文摘要：

为使Ni-YSZ阳极支撑的固体氧化物燃料电池能以碳氢气为燃料气稳定工作，采用化学镀银法对电池阳极进行镀银改性研究，在750℃分别以氢气和乙烷为燃料气，测试电池的电化学性能，并采用扫描电子显微镜对测试前后的阳极进行表征．结果表明阳相镀银后，电池极化电阻减小，放电性能和抗积炭能力提高．化学镀银法镀银10min的电池在750℃以氢气为燃料气时，最大功率密度463mw·cm-2，比未镀银电池增加28．6％，以乙烷为燃料气时能以330mA·cm-2恒流稳定运行24h．这使得固体氧化物燃料电池以碳氢气为燃料气稳定运行成为可能，将为污泥资源化提供一个新途径．

英文摘要：

In order to make Ni -YSZ anode supported solid oxide fuel cells （SOFCs） work stably in hydrocarbon. Electroless silver plating was used to deposit traces of silver on SOFC anodes to improve cell performance. Electrochemical performances of these SOFCs were test- ed when hydrogen and ethane were respectively used as fuel gas at 750 ℃. Mierostruetures of the anodes were characterized using a Scanning Electron Microscope before and after tes- ting. The experimental results showed that polarization resistance decreased. Meanwhile, discharge performance and the resistance to carbon deposition of these SOFCs were all im- proved. When the cells plated by electroless silver for 10 min were fed with hydrogen at 750 ℃ the average max power density of these cells was 463 mW ·cm-2, increased by 28.6% than the cells without electroless silver plating. When the modified cells were fueled with ethane, they were able to keep stably at 330 mA· cm-2 for 24 h. It meant that the decorated Ni -YSZ anode supported SOFC with silver could work stably in hydrocarbon such as meth- ane, which will be a new way to sludge resource.