直接碳燃料电池将固体碳的化学能连续、高效、直接地转化为电能，是最具发展前景的煤炭利用技术之一。其中，固体氧化物型直接碳燃料电池因不存在电解质泄露、失活等缺点而倍受关注，但固态碳燃料在固体阳极上的电极反应机理是研究的重点和难点。本项目拟采用原位静电纺丝法构筑比表面积高的双钙钛矿型Sr2Fe1.5Mo0.5O6-δ(SFM)阳极骨架结构，再在SFM骨架上浸渍不同量的电子-催化相M-CeO2(M=Cu、Ni、Fe等)而得到复合阳极。通过解析不同复合阳极材料及反应前后的三相界面的形态和结构变化，阐明复合阳极的材料组成、三相界面的结构形态及长度对碳燃料在阳极反应过程的影响，建立微观结构与电极反应的关系模型；利用在线气相色谱分析气体组分与浓度，与电化学性能相互印证，揭示不同石墨化程度的碳燃料对复合阳极中固-固、固-气和气-气等反应过程的影响规律，从而探明该类阳极上碳燃料的反应机理和阳极可能的衰减机制。

Solid oxide electrolyte-based direct carbon fuel cell (SO-DCFC) is one kind of the most promising technologies for coal utilization, which converts the chemical energy of solid carbon into electricity continuously, efficiently and directly. Hence, it has attracted much more attention due to its lack of electrolyte leakage and deactivation, while the reaction process on its solid state anode is an important topic needing further more studies. In this project, the composite anode of M(M=Cu, Ni, Fe and etc.)-CeO2-Sr2Fe1.5Mo0.5O6-δ for carbon fuel is constructed by in-situ electro spinning and impregnates methods. By comparing the morphology and microstructure of Three Phase Boundary (TPB), effects of material composition, structure and length of TPB in the carbon fuel reaction process on anode will be clarified, and the relationship model between microstructure and electrode reaction will be established. The effects of carbon fuels with different graphitization degrees in the solid-solid, solid-gas and gas-gas reaction processes of M-CeO2-SFM electrodes will be revealed by means of exhaust gas analysis and electrochemical performance characterization, to discuss the carbon fuel reaction mechanism and performance degradation possibilities on this kind of anode.