Performance evaluation of solid oxide fuel cell with in-situ methane reforming
Performance evaluation of solid oxide fuel cell with in-situ methane reforming
复制标题
原位甲烷重整固体氧化物燃料电池的性能评估
DOI：
10.1016/j.fuel.2015.08.050
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发表时间：
2015
期刊：
影响因子：
7.4
通讯作者：
Minfang Han
中科院分区：
文献类型：
--
作者：
Tenglong Zhu;Zhibin Yang;Minfang Han
固体氧化物燃料电池(SOFC)是一种很有前途的发电技术，具有广泛的燃料灵活性。本文以La0.8Sr0.2Ga0.83Mg0.173型固体氧化物燃料电池为研究对象，采用La0.4Sr0.6Co0.2Fe0.7Nb0.1O3−δ(LSCFN)–Gd0.1Ce0.9O1.95(GDC)功能层和集电层组成的对称电极，在La0.8Sr0.2Ga0.83Mg0.173SOFC电解液支撑的单电池上进行了CH4等碳基燃料的−δ性能评价。在LSCFN基阳极上成功地实现了甲烷在阳极上的二氧化碳原位重整反应，大大提高了电池的性能。在燃料进口速率为50 mW/min、温度为850℃时，单电池的最大功率密度从280 mW/cm2增加到455 mW/cm2。在电池运行过程中没有观察到明显的降解现象，表明CO2-CH4燃料在LSCFN基阳极上具有稳定和较宽的运行范围。
Solid Oxide Fuel Cell (SOFC) is a promising power generation technology with a wide range of fuel flexibility. In this paper, performance evaluation of SOFC fuelled with carbon based fuels like CH4were carried out on La0.8Sr0.2Ga0.83Mg0.17O3−δ(LSGM) electrolyte supported single cell with symmetrical electrodes consisted of La0.4Sr0.6Co0.2Fe0.7Nb0.1O3−δ(LSCFN)–Gd0.1Ce0.9O1.95(GDC) functional layers and LSCFN current collect layers. In-situ reforming of methane by carbon dioxide at the anode was successfully achieved on LSCFN based anode, which greatly enhanced the cell performance. The maximum power density of the single cell was dramatically increased from 280 to 455 mW/cm2when fuelled with 10% CO2–90% CH4compared with pure methane at 850 °C with a fuel inlet rate of 50 mL/min. No obvious degradation was observed during the cell operation, demonstrating a stable and wide operation range with CO2–CH4fuel on LSCFN based anode.