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A Microtubular Direct Carbon Solid Oxide Fuel Cell Operated on the Biochar Derived from Pepper Straw
Energy Technology ( IF 3.6 ) Pub Date : 2019-11-14 , DOI: 10.1002/ente.201901077
Fangyong Yu 1 , Yishang Wang 1 , Yujiao Xie 1 , Weimin Zhang 1 , Jinjin Zhang 1 , Xiuxia Meng 1 , Jie Xiao 2 , Naitao Yang 1
Affiliation  

Direct carbon solid oxide fuel cell (DC‐SOFC) is a promising energy conversion system, which can directly convert the chemical energy of biomass into electrical energy with high efficiency and low pollution. Herein, a microtubular DC‐SOFC fueled with the biochar derived from pepper straw for electrical power generation is reported. The DC‐SOFC operated on pepper straw char gives a maximum power density of 217 mW cm−2, comparable with 252 mW cm−2 for that with hydrogen fuel at 850 °C. Moreover, the lifetime of the DC‐SOFC reaches 21 h at a discharge current of 100 mA with the fuel utilization of 44.4%. The pepper straw char is characterized physically by scanning electron microscopy, energy‐dispersive spectrometer, X‐ray diffraction, Raman spectroscopy, thermogravimetric analysis, and differential scanning calorimetry. The results demonstrate that the pepper straw char contains natural catalysts in itself and their contribution on the electrochemical performance of the microtubular DC‐SOFC is analyzed in detail.

中文翻译:

微管直接碳固体氧化物燃料电池在辣椒秸秆衍生的生物炭上运行

直接碳固体氧化物燃料电池(DC-SOFC)是一种很有前途的能源转换系统,可以将生物质的化学能直接转换为电能,且效率高且污染低。在此,报道了一种微管DC-SOFC,该燃料以胡椒秸秆衍生的生物炭为燃料,用于发电。在胡椒秸秆焦上运行的DC-SOFC的最大功率密度为217 mW cm -2,与252 mW cm -2相当用850°C的氢气作为燃料。此外,在放电电流为100 mA的情况下,DC-SOFC的使用寿命达到21小时,燃油利用率为44.4%。胡椒秸秆炭的物理特征是扫描电子显微镜,能量分散光谱仪,X射线衍射,拉曼光谱,热重分析和差示扫描量热法。结果表明,胡椒秸秆炭本身含有天然催化剂,并详细分析了它们对微管DC-SOFC电化学性能的贡献。
更新日期:2019-11-14
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