基于水溶性多金属氧酸盐的光催化燃料电池  

Water Soluble Polyoxometalate-based Photocatalytic Fuel Cell

作　　者：吴伟兵[1] 李建[1] 刘聪敏 张磊[4] 戴红旗[1] 刘伟[2] 

机构地区：[1]南京林业大学轻工科学与工程学院,江苏省制浆造纸科学与技术重点实验室,南京210037 [2]湖南大学化学化工学院,长沙410082 [3]国电新能源技术研究院,北京102209 [4]南京邮电大学材料科学与工程学院,南京210046

出　　处：《高等学校化学学报》2017年第6期1082-1089,共8页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:61571239,31470599)资助~~

摘　　要：以水溶性多金属氧酸盐作为光催化剂和电子载体构建了一种新型光催化燃料电池.该光催化燃料电池发生燃料的均相光催化降解反应,可实现在无光照情况下的持续放电.使用生物柴油副产物甘油作为燃料时,该光催化燃料电池的输出功率达0.24 m W/cm^2.在持续光照条件下,电池可长时间运转近50 h,电流稳定在0.75 m A/cm^2以上.甘油在电池中可持续循环放电,根据实际的反应程度可被转化为醛和酸,进一步氧化得到COx.对多种有机燃料的应用表明该光催化燃料电池具有广泛的适用性.A novel photocatalytic fuel ceU using water soluble polyoxometalates （POM） as photocatalyst and charge carrier was built. The fuel oxidation in this study is a homogeneous decomposition reaction that occurred in electrolyte solution and the cell could generate electricity in dark. Using bio-glycerols as fuels, the power density of the photocatalytic fuel cell could reach 0. 24 mW/cm^2. The cell worked steadily for nearly 50 h with current above 0. 75 mA under continuous irradiation. Theoretically, the glycerol fuel can be either partially converted to aldehydes and acids, or fully converted to COS, depending on the degree of the oxidization reactions. Ultimately, this novel photoactivated hybrid fuel cell could expand fuel supply and utilization.

关 键 词：燃料电池 多金属氧酸盐 光催化 甘油 生物质 

分 类 号：O644[理学—物理化学]