阴极催化剂及不同底物对微生物燃料电池的影响  

Effects of Cathode Catalysts and Substrates on Microbial Fuel Cell

作　　者：蒋阳月[1] 徐源[1] 杨倩[1] 陈英文[1] 祝社民[2] 沈树宝[1] 

机构地区：[1]南京工业大学生物与制药工程学院,江苏南京210009 [2]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《化工环保》2013年第5期431-436,共6页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金资助项目(51172107;21106072);国家科技支撑计划项目(2012BAE01B03)

摘　　要：构建了单腔室微生物燃料电池(MFC),分别以乙酸钠、丁二酸、蔗糖及对苯二甲酸(TA)为底物,研究了Pt-C、聚苯胺(PANI)、碳纳米管(MWNTs)和PANI-MWNTs分别作为阴极催化剂的MFC产电性能。研究结果表明:分别以乙酸钠、丁二酸、蔗糖及TA为底物时,PANI-MWNTs阴极可获得最大开路电压分别为445,457,460,410 mV,最高功率密度分别为371,374,429,317 mW/m2;PANI-MWNTs阴极具有与Pt-C阴极接近的产电性能,反应35 h时,Pt-C阴极对上述4种底物的COD去除率分别为95.8%、95.9%、96.4%和89.1%;PANIMWNTs阴极分别为96.6%、97.0%、95.6%和97.3%。A single-cell microbial fuel cell （MFC） was constructed using sodium acetate, succinic acid, sucrose and terephthalic acid （TA） as substrates and Pt-C, polyanilene（PANI）, carbon nanotube（MWNTs） and PANI-MWNTs as cathode catalysts respectively. The electricity generation capability of the MFC was investigated. The results show that： When sodium acetate, succinic acid, sucrose and TA are used as substrates respectively, the largest open circuit voltages of Pt-C cathode are 445, 457, 460, 410 mV, and the highest power densities are 371, 374, 429, 317 mW/m2 respectively. The electricity generation capability of MFC with PANI-MWNTs cathode is close to that with Pt-C cathode. After the reactions for 35 h using the 4 substrates, the COD removal rates by Pt-C cathode are 95.8%, 95.9%, 96.4% and 89.1%, while those by PANI-MWNTs cathode are 96.6%, 97.0%, 95.6% and 97.3% respectively.

关 键 词：微生物燃料电池 阴极催化剂 底物 产电 功率密度 开路电压 

分 类 号：TM911.45[电气工程—电力电子与电力传动]