资源描述：
《填料型微生物燃料电池产电特性的研究》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第29卷第2期环境科学Vol.29,No.22008年2月Feb.,2008ENVIRONMENTALSCIENCE填料型微生物燃料电池产电特性的研究1111323梁鹏,范明志,曹效鑫,黄霞,黄正宏,王诚(11清华大学环境科学与工程系环境模拟与污染控制国家重点实验室,北京100084;21清华大学新型炭材料研究室,北京100084;31清华大学核能与新能源技术研究院,北京100084)摘要:将石墨和碳毡作为阳极填料组装成填料型微生物燃料电池,其启动期在1d左右,低于平板型微生物燃料电池的启动23期.碳毡作为填料时,微生物燃料电池的
2、最大产电功率密度为1502mWPm(3716WPm),优于石墨作为填料的MFC.将碳毡与2碳纸烧结一体以提高填料型微生物燃料电池阳极的导电性,与平板型微生物燃料电池相比,其面积内阻从01071Ω·m下降到223201051Ω·m,最大电流密度从3000mA上升到8000mA,最大产电功率密度从1100mWPm(2715WPm)上升到2426mWPm(60173WPm),阳极电势平均下降100mV.循环流量影响填料型微生物燃料电池的产电能力,当流量低于1mLPmin时,其产电功率密度随流速降低而下降.填料型微生物燃料电池在外电阻为6
3、00Ω下长期稳定运行30d以上,其库仑效率约为1016%.关键词:微生物燃料电池;填料;内阻中图分类号:X382文献标识码:A文章编号:025023301(2008)0220512206ElectricityGenerationUsingthePacking2TypeMicrobialFuelCells111123LIANGPeng,FANMing2zhi,CAOXiao2xin,HUANGXia,HUANGZheng2hong,WANGCheng(1.EnvironmentalSimulationandPollutionCont
4、rolStateKeyJointLaboratory,DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China;2.NewCarbonMaterialsLaboratory,TsinghuaUniversity,Beijing100084,China;3.InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing100084,China)Abs
5、tract:Thepacking2typemicrobialfuelcells(MFCs)wereconstructedusingthegranulargraphiteandthecarbonfeltaspackingmaterials.Thestart2uptimeofthepacking2typeMFCwasabout1d,whichwaslowerthanthatoftheflat2typeMFC.Themaximalpowerdensity(Pm)23oftheMFCwithcarbonfeltaspackingmater
6、ialwas1502mWPm(3716WPm),whichwashigherthanthatwithgranulargraphiteaspackingmaterial.Thecarbonfeltandcarbonpaperweresinteredtogethertoenhancetheelectricconductivity.Comparedwiththeflat2typeMFC,the22area2specificresistanceofthepacking2typeMFCdecreasedfrom01071Ω·mto01051
7、Ω·m,themaximalcurrentdensityincreasedfrom23233000mAto8000mA,thePmincreasedfrom1100mWPm(2715WPm)to2426mWPm(6017WPm)andthepotentialsofanodedecreasedabout100mV.TheflowrateaffectedthepowergenerationoftheMFC.Whentheflowratewaslowerthan1mLPmin,thePmdroppedwiththefluxdecreas
8、ing.Thepacking2typeMFCwasoperatedforover30andthecoulombefficiencywasabout1016%.Keywords:microbialfuelcell;packingmaterials;i
