碳纸和碳布电极微生物燃料电池产电特性的对比研究
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摘要
以厌氧污泥为接种微生物构建H型双室微生物燃料电池,考察不同电极材料(碳纸和碳布)对微生物燃料电池(MFC)产电性能的影响。结果表明,采用碳布为电极材料的MFC启动更快,18 h达到稳定,但在稳定期采用碳纸为电极材料比采用碳布为电极材料的MFC电压高出20 m V左右。采用碳布电极材料的MFC在启动初期的最大功率密度为4. 7 m W/m~2,内阻为1 782Ω;采用碳纸电极材料的MFC在启动初期的最大功率密度为8. 5 m W/m~2,内阻为1 125Ω,且驯化结束后稳定期的电压(313 m V)比碳布电极材料的MFC(282 m V)高,故MFC电极材料采用碳纸的产电效果优于碳布。
H-type two-cell microbial fuel cell is constructed by using anaerobic sludge as inoculation microorganism and the effect of different electrode materials( carbon paper and carbon cloth) on the electrical performance of microbial fuel cell( MFC) is investigated. Research shows that MFC with carbon cloth-based electrode starts faster and achieve stability in 18 h.However,in the stationary phase,MFC with carbon paper electrode can export a voltage higher by about20 m V than that with carbon cloth electrode.MFC with a carbon cloth electrode has a maximum power density of 4. 7 mW·m~(-2) and an internal resistance of 1 782 Ω at the initial stage of startup.The data for MFC with a carbon paper electrode are 8. 5 mW·m~(-2) and 1 125 Ω,respectively.After the acclimatization,the voltage during stationary phase of MFC with a carbon paper electrode is 313 m V,higher than the 282 m V of MFC with a carbon cloth electrode.Therefore,in the light of power generation efficiency,carbon paper is superior to carbon cloth as electrode material for MFC.
H-type two-cell microbial fuel cell is constructed by using anaerobic sludge as inoculation microorganism and the effect of different electrode materials( carbon paper and carbon cloth) on the electrical performance of microbial fuel cell( MFC) is investigated. Research shows that MFC with carbon cloth-based electrode starts faster and achieve stability in 18 h.However,in the stationary phase,MFC with carbon paper electrode can export a voltage higher by about20 m V than that with carbon cloth electrode.MFC with a carbon cloth electrode has a maximum power density of 4. 7 mW·m~(-2) and an internal resistance of 1 782 Ω at the initial stage of startup.The data for MFC with a carbon paper electrode are 8. 5 mW·m~(-2) and 1 125 Ω,respectively.After the acclimatization,the voltage during stationary phase of MFC with a carbon paper electrode is 313 m V,higher than the 282 m V of MFC with a carbon cloth electrode.Therefore,in the light of power generation efficiency,carbon paper is superior to carbon cloth as electrode material for MFC.
引文
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[7]苏暐光,薛屏,马保军.微生物燃料电池中碳基阳极材料和表面修饰碳基阳极材料研究进展[J].科技导报,2015,33(3):105-109.
[8]张永娟,李永峰,刘春研,等.利用双室微生物燃料电池处理模拟废水的产电特性研究[J].环境科学,2012,33(7):2427-2431.
[9]蔡慧.双室微生物燃料电池碳基阳极材料的制备及其产电特性的研究[D].南京:南京理工大学,2013.
[10]刘春梅,廖强,叶丁丁,等.矩形与双筒型微生物燃料电池产电特性比较[J].电源技术,2015,39(9):1891-1894.
[11]刘松山,陈亮,黄满红,等.碳毡和碳布2种生物阴极材料微生物燃料电池产电性能[J].环境工程学报,2014,8(10):4540-4544.
[12]布鲁斯·洛根,Bruce E.Logan.微生物燃料电池[M].北京:化学工业出版社,2009.
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[14]詹亚力,王琴,张佩佩,等.微生物燃料电池影响因素及作用机理探讨[J].高等学校化学学报,2008,29(1):144-148.