《机电工程》杂志,月刊( 详细... )
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啤酒酵母菌微生物燃料电池及阳极研究*
作者:黄素德1,刘宜胜1,李伟1,殷S2 日期:2008-08-18/span> 浏览:3782 查看PDF文档
啤酒酵母菌微生物燃料电池及阳极研究*
黄素德1,刘宜胜1,李伟1,殷S2
(1.浙江大学 流体传动及控制国家重点实验室,浙江 杭州 310027; 2.浙江大学 食品工程学院,浙江 杭州 310027)
摘要:针对微生物燃料电池(MFC)输出功率低、成本高等问题,基于微生物的代谢作用和电子传递机制,采用葡萄糖作为燃料,以亚甲基蓝为电子介体,利用啤酒酵母菌的生物催化作用构建了MFC。实验表明,啤酒酵母菌具有良好的生物电催化活性,可作为MFC的功能微生物。另外,直接用铜、铝、铁等具有良好导电性的金属作为电池阳极,MFC产电性能比使用石墨电极好,尤其是用铁作为阳极,最大功率密度达193 mW·m-2。分析表明,金属电极具有优越的阳极性能,生物吸附性好,反应阻力小,而且成本低廉,利于商业推广。
关键词:微生物燃料电池;啤酒酵母菌;阳电极;功率密度
中图分类号:TM911.45文献标识码:A文章编号:1001-4551(2008)08-0035-05
Mediator microbial fuel cell based on the saccharomyces cerevisiae and the research on anode
HUANG Su-de1, LIU Yi-sheng1, LI Wei1, YIN Yun2
(1.State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China;
2.School of Food Science, Zhejiang University, Hangzhou 310027, China)
Abstract: Aiming at the question of low output and high cost, a two-chambered microbial fuel cell(MFC) based on the mechanism of microbial metabolism and electron transfer processes was coustructed. Glucose was used as fuel in MFC to harvest electricity through the biocatalysis of saccharomyces cerevisiae, the methylene blue was used as electron mediator of MFC. It shows that saccharomyces is well provided with electrochemical activity as appropriate biocatalyst. In addition, tried to use the metal with ascendant electric capability as anode of MFC, such as copper, aluminum, iron, the performance of MFC which used iron electrode is best. The maximum power density is 193 mW·m-2. The aualysis results show that metal anode makes signality for the performance of anode, in favor of being used in business for its low cost.
Key words: microbial fuel cells(MFC); saccharomyces cerevisiae; anode; power density
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