【摘要】 生物质热解可产生热解炭和热解油，其中热解炭存在丰富的表面官能团和孔隙结构，热解油中含有多种可以发生氧化还原的组分，其可分别用于制备燃料电池电极材料和燃料。文章优化了林木热解油作为碱性燃料电池燃料的工作条件，并以林木热解炭为原料，采用K₂CO₃活化和金属负载的方法制备了林木活性炭（AC）和3种林木热解炭复合电极（AC/Fe,AC/Mn,AC/Fe/Mn），通过傅里叶红外光谱、扫描电子显微镜和电化学工作站分析了电极材料的微观结构、表面性质和电化学活性。结果表明：在以AC为阴极电极时，较优的林木热解油质量分数和环境温度分别为30%和60℃，此时电流为3.10 mA；在优化条件下，AC/Fe,AC/Mn和AC/Fe/Mn的电流分别为8.02,12.57,15.25 mA，较AC分别提升159%,305%,392%；在优化条件下，以AC/Fe/Mn为阴极电极，加入12 mL林木热解油作为燃料时，基于林木热解产物的燃料电池可持续工作408.6 min，总放电量为40.61 mAh。更多还原

【Abstract】 Biomass pyrolysis can produce pyrolysis carbon and pyrolysis oil, of which the pyrolysis carbon is rich in surface functional groups and pore structures, while the pyrolysis oil contains a variety of components that can undergo redox reactions, which can be used for the preparation of fuel cell electrode materials and fuels, respectively. In this article, the working conditions of using wood pyrolysis oil as alkaline fuel cell fuel were optimized, and wood activated carbon（AC） and three types of wood pyrolysis carbon composite electrodes（AC/Fe, AC/Mn and AC/Fe/Mn） were prepared from wood pyrolysis carbon with K₂CO₃ activation and metal loading,furthermore the electrodes were analyzed using Fourier transform infrared spectroscopy, scanning electron microscopy, and electrochemical workstation. The microstructure, surface properties and electrochemical activity of the materials were analyzed by Fourier transform infrared spectroscopy and an electrochemical workstation. The results indicated that the optimal wood pyrolysis oil mass fraction and environmental temperature were 30% and 60 ℃, respectively, when AC was used as the cathode electrode, at this point the current reached 3.10 mA; under the optimized conditions,the currents for AC/Fe, AC/Mn and AC/Fe/Mn were 8.02, 12.57, 15.25 mA, which were 159%,305% and 392% higher than that of AC, respectively; under the optimized conditions, when AC/Fe/Mn was used as the cathode electrode and 12 mL of wood pyrolysis oil was added as the fuel,the fuel cell constructed from wood pyrolysis products could work continuously for 408.6 min with a total discharge capacity of 40.61 mAh.更多还原