(江苏理工学院 化学与环境工程学院，常州 213001)
摘 要: 通过电化学聚合法将苯胺和噻吩单体沉积到阳极碳纸表面制成聚合物改性碳纸，以此为阳极构建双室微生物燃料电池，研究其产电性能以及阴极钴的浸出情况。结果表明：聚苯胺改性碳纸和聚噻吩改性碳纸的最大输出电压为0.742和0.823 V，是未改性碳纸的1.29和1.44倍，最大功率密度为14137.6和19360 mW/m2，是未改性碳纸的1.26和1.73倍，产电能力有了较大提高；从阴极钴的浸出情况看，聚噻吩改性碳纸的效果最好，其库伦效率、Co(Ⅲ)浸出率及平均浸出速率分别为54.2%、68.5%和2.78 mg/(L·h)，是未改性碳纸的1.33、2.03和1.63倍。
关键字: 微生物燃料电池；阳极改性；产电性能；钴浸出；废锂电池
（School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China）
Abstract:Polymer-modified carbon paper was prepared by depositing aniline and thiophene monomers on the surface of anodic carbon paper using adopting the method of electrochemical polymerization, which was used as the anode to construct a two-compartment microbial fuel cell to study its electrical performance and the leaching of cathode cobalt. The results show that the maximum output voltages of polyaniline modified carbon paper and polythiophene modified carbon paper are 0.742V and 0.823V, which are 1.29 and 1.44 times of that of unmodified carbon paper, and the maximum power density are 14137.6 and 19360 mW/m2, which are 1.26 and 1.73 times of that of unmodified carbon paper, greatly improving the electricity production capacity. According to the leaching of cathode cobalt, carbon paper modified by polythiophene has the best effect, with coulomb efficiency, Co(Ⅲ) leaching rate and average leaching rate of 54.2%, 68.5% and 2.78 mg/(L·h), respectively, which are 1.33, 2.03 and 1.63 times of that of unmodified carbon paper.
Key words: microbial fuel cell; anode modification; electricity generation performance; cobalt leaching; waste lithium battery
