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二氧化锡掺杂碳纳米管电极制备及应用

Preparation of SnO₂ doped carbon nanotube electrode and its application

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【Author】 Shen Ganzhou;Guan Yujiang;Xiong Shichang;Zhu Xueqiang;Wang Zibo;College of Environmental Science and Engineering,Yangzhou University;Department of Environmental Engineering,Taizhou College;China University of Mining and Technology;

【机构】扬州大学环境科学与工程学院；台州学院环境工程系；中国矿业大学环境与测绘学院；

【摘要】采用化学气相沉积法,在碳毡基体上合成碳纳米管,将二氧化锡（SnO₂）溶胶负载在碳纳米管表面,然后煅烧处理,制备碳毡基载SnO₂掺杂碳纳米管复合电极,用扫描电镜（SEM）、X-射线衍射（XRD）和能量色散X-射线（EDX）对样品表征。以复合电极为阳极,葡萄糖溶液为阳极室供给基质,柔性石墨为阴极,构建微生物燃料电池,考察复合电极对微生物燃料电池产电性能及化学需氧量（COD）除去率影响。实验表明,温度为38℃,外电阻为2500Ω,基质浓度为1500mg/L时,微生物燃料电池最大输出电压为563mV,对COD降解率为78%。更多还原

【Abstract】 SnO₂ sol was applied to a carbon felt containing carbon nanotubes to form SnO₂ doped composite electrode and it was characterized by scanning electron microscope,X-ray diffraction and energy dispersion X-ray.With glucose solution as substrate,microbial fuel cell was constructed using the electrode as anode and flexible graphite as cathode.The effects of electrodes on performance of microbial fuel cell and removal rates for COD were investigated.At 38℃,external resistance of 2500Ω,the microbial fuel cell possessed optimum output voltage was 563 mV and removal rate of 78%for COD using substrate concentration of 1500mg/L.更多还原