| 阳极双电层电容对微生物燃料电池性能的影响 |
| |
| 引用本文： | 叶遥立,郭剑,潘彬,成少安.阳极双电层电容对微生物燃料电池性能的影响[J].化工学报,2015,66(2):773-778. |
| |
| 作者姓名： | 叶遥立 郭剑 潘彬 成少安 |
| |
| 作者单位： | 浙江大学能源工程学系, 能源清洁利用国家重点实验室, 浙江 杭州 310027 |
| |
| 基金项目： | 国家自然科学基金项目(51278448)；国家高技术研究发展计划项目(2011AA060907，2012AA051502)。 |
| |
| 摘 要： | 采用3种活性炭粉制备具有不同电容的阳极,研究了双电层电容阳极对单室空气阴极微生物燃料电池启动、运行、性能、阳极生物膜附着的影响。结果表明:当电极表面积相近的情况下,阳极双电层电容从0.0012 F增加到22.72 F时,微生物燃料电池启动时间缩短了68.0%,电池的最大功率密度增加了16.8倍,达到546.1 m W·m-2。扫描电子显微镜的结果表明高电容的阳极表面附着的微生物量比低电容电极的高1倍。因此,微生物燃料电池性能受阳极双电层电容的影响,而与阳极表面积的相关性小。
|
| 关 键 词： | 阳极 双电层电容 生物膜 产电功率 微生物燃料电池 |
| 收稿时间： | 2014-06-30 |
| 修稿时间： | 2014-11-21 |
Effect of anode double-layered capacitance on performance of microbial fuel cell |
| |
| YE Yaoli,GUO Jian,PAN Bin,CHENG Shao’an.Effect of anode double-layered capacitance on performance of microbial fuel cell[J].Journal of Chemical Industry and Engineering(China),2015,66(2):773-778. |
| |
| Authors: | YE Yaoli GUO Jian PAN Bin CHENG Shao’an |
| |
| Affiliation: | State Key Laboratory of Clean Energy, Department of Energy Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China |
| |
| Abstract: | The performance of a microbial fuel cell (MFC) is influenced by the anode biofilm with electrochemical activity, while the formation of anode biofilm greatly depends on the anode surface characteristics. To investigate how the two main characteristics of anode surface, surface area and double-layered capacitance, influence MFC performance, three kinds of activated carbon materials were used to make anodes with different double-layered capacitance values. The startup and operation performance of MFCs with those anodes were evaluated in the single-chamber air-cathode MFCs. When anode double-layered capacitance increased from 0.0012 F to 22.72 F, MFC starting up time decreased by 68% and maximal power density of MFC increased by 16.8 times to 546.1 mW·m-2. The images of scanning electron microscope (SEM) demonstrated that the biofilm formed on the anode with large capacitance was approximately one time thicker than that on the anode with small capacitance. Anode performance was directly influenced by anode double-layered capacitance other than anode surface area. |
| |
| Keywords: | anode double-layered capacitance biofilm power generation microbial fuel cell |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
