胺基修饰阳极对微生物燃料电池产电性能的影响

摘要在阳极上负载胺基化合物可以提高微生物燃料电池的产电性能。本文分别将甘氨酸和乙二胺负载到碳布阳极和石墨毡阳极上，以提高产电微生物在阳极的吸附量和电子的传递效率。结果表明，浸渍法负载甘氨酸于碳布阳极的微生物燃料电池的最大功率密度达到 564.8mW/m2 ，远高于未修饰的碳布阳极电池

（309.8mW/m2）。电化学方式负载甘氨酸到碳布阳极上，微生物燃料电池产生的最大功率密度为 293.1mW/m2，比未修饰的 MFC（226.5mW/m2）高 29%。共价键合法负载乙二胺于石墨毡阳极得到的最大功率密度达到 355mW/m2，比空白的阳极电池高 25%。通过扫描电镜分析，可以观察到经过修饰的阳极表面吸附了更多的微生物。因此，采用胺基化合物修饰阳极可以有效地提高微生物燃料电池的性能。68418

毕业论文关键词微生物燃料电池碳布石墨毡阳极甘氨酸乙二胺

Title Effect of amino on the performance of microbial fuel cells anodes

Abstract

Loading amino compounds on the anode is helpful to improve the power generation of microbial fuel cells (MFCs).In this paper, glycine and ethylenediamine(EDA) are loaded on the carbon cloth and graphite felt anode respectively, which can improve the adsorption quantity of microorganism and

electronic transmission efficiency. The results showed that glycine modifying anode MFCs reached the power density of 564.8 mW/m2 by the immersion method , far higher than the unmodified one(309.8 mW/m2). Glycine modifying anode MFCs reached the power density of 293.1 mW/m2 by electrochemical method, higher than the unmodified one (226.5 mW/m2) 29%. EDA modifying carbon cloth graphite felt anode MFCs increased the power density by 25% reaching 355 mW/m2 by covalent bond method .Through scanning electron microscopy (SEM) analysis, it was observed that

the modified carbon cloth adsorb more microorganisms on the surface. Experiments show that the anode surface loaded amino compounds can effectively improve the power density of the MFC and the output voltage.

Keywords MFC anode glycine EDA

1 引言 1

1.1 概述 1

1.2 基本工作原理 2

1.3 MFC 的构型 2

1.3.1 双室 H 型 MFC 2

1.3.2 单室 MFC 3

1.4 阳极材料 3

1.4.1 碳基材料 3

1.4.2 石墨材料 3

1.4.3 导电聚合物 3

1.4.4 金属和金属涂层 4

1.4.5 非金属处理和修饰阳极 4

1.5 MFC 性能指标 5

1.5.1 胺基修饰阳极对微生物燃料电池产电性能的影响:http://www.youerw.com/huaxue/lunwen_76939.html