尿液微生物燃料电池泡沫金属阳极性能研究

摘要

Through testing of linear sweep voltammetry(LSV),circulation voltammetry(CV),electrochemical impedance spectroscopy(EIS),and Tafel,we studied the electrochemical performances of three foam metal anodes,including nickel foam anode(Ni-anode),copper foam anode(Cu-anode),and iron-nickel foam anode(FeNi-anode).Using Ni-anode,Cu-anode,and FeNi-anode as urine-powered microbial fuel cell(UMFC) anode,respectively,we studied their performances by testing start-up curves.The results indicated that,the characteristics of LSV,CV,EIS,and Tafel of Cu-anode were superior to those of Ni-anode and FeNi-anode,and the maximum voltage output of Cu-anode UMFC was 356 mV.The characteristics of CV and LSV of Ni-anode were similar to those of FeNi-anode,and the EIS characteristics of Ni-anode was superior to that of FeNi-anode.The electrochemical performance of FeNi-anode was superior to that of Ni-anode,and the maximum voltage output of FeNi-anode UMFC was 110 mV.%通过线性扫描伏安(LSV)曲线、循环伏安(CV)曲线、电化学阻抗谱(EIS)和塔菲尔(Tafel)曲线对泡沫镍电极、泡沫铜电极和泡沫铁镍电极的性能进行了研究;并分别以泡沫镍电极、泡沫铜电极和泡沫铁镍电极作为尿液微生物燃料电池(UMFC)阳极,通过启动曲线的测试,对3种泡沫金属电极的性能进行了比较.结果表明,泡沫铜电极的LSV特性、CV特性、EIS特性和Tafel特性均优于泡沫镍电极和泡沫铁镍电极,以其为阳极的UMFC产电稳定电压能够达到356 mV;泡沫镍电极的CV特性和LSV特性与泡沫铁镍电极相似,泡沫镍电极的EIS特性优于泡沫铁镍电极;泡沫铁镍电极的性能优于泡沫镍电极,以泡沫铁镍电极为阳极的UMFC产电稳定电压能够达到110 mV.