CAJ | 학술논문

以氧化钇稳定的氧化锆( YSZ)为电解质组装成直接碳燃料电池( DCFC),分别以活性炭( AC)、石墨( G)、神府半焦( SC)作为DCFC燃料,研究了碳燃料的特性、电池操作温度以及阳极反应气氛等对DCFC阳极反应过程的影响。结果表明,三种碳燃料在空气、CO2气氛中氧化反应活性顺序为AC > SC > G,当三种碳材料作为DCFC燃料时,活性炭作为燃料的DCFC性能最好,半焦燃料次之,石墨作为燃料的DCFC性能最差,而且燃料反应活性与其表面含氧官能团、孔隙结构有关；DCFC的阳极反应过程存在碳燃料直接氧化为CO2、CO2与C反应转化为CO,以及CO氧化为CO2等。
이양화을은정적양화고( YSZ)위전해질조장성직접탄연료전지( DCFC),분별이활성탄( AC)、석묵( G)、신부반초( SC)작위DCFC연료,연구료탄연료적특성、전지조작온도이급양겁반응기분등대DCFC양겁반응과정적영향。결과표명,삼충탄연료재공기、CO2기분중양화반응활성순서위AC > SC > G,당삼충탄재료작위DCFC연료시,활성탄작위연료적DCFC성능최호,반초연료차지,석묵작위연료적DCFC성능최차,이차연료반응활성여기표면함양관능단、공극결구유관；DCFC적양겁반응과정존재탄연료직접양화위CO2、CO2여C반응전화위CO,이급CO양화위CO2등。
A direct carbon fuel cell ( DCFC) was assembled with yttria stabilized zirconia ( YSZ) as electrolyte and active carbon ( AC) , graphite ( G) and semi-coke ( SC) were employed as the DCFC fuels. The influences of the carbon fuel pore structure and reactivity, operation temperature, anode atmosphere on the anode reaction were investigated. The results indicated that for three carbonaceous fuels, the performance of DCFC is in the order of AC >SC >G, the same as that for their oxidation reactivity in air or CO2 atmosphere. The reactivity of carbonaceous fuels is determined by their surface oxygenic functional groups and pore structure. Moreover, the results revealed that the DCFC anodic reactions involves the oxidation of C to CO2 , the conversion of CO2 to CO via the reverse Boudouard reaction, and the oxidation of CO to CO2 .