Research of Modified Anodes with Manganese Salt and Electricity Generation Performance in Benthonic Microbial Fuel Cell
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摘要: 阳极是限制海底微生物燃料电池输出功率的关键因素,通过改性阳极,可望提高微生物燃料电池性能。本文利用MnSO4氧化还原介体修饰石墨阳极,研究了MnSO4含量对阳极和电池产电性能的影响。结果表明,锰离子可有效加速电子转移,当阳极MnSO4的含量为4%时,阳极性能最好,电池内阻最小,最大输出功率密度为51.64 mW/m2,是普通石墨电极的3倍。Abstract: Anode is a key factor which limits the power output of benthonic microbial fuel cell,and cell performance can be improved through its modification.Graphite anodes were modified with manganese sulfate redox mediator and the effect of manganese sulfate content on the performance of anode and cell electricity generation was studied.Results showed that manganese ioncould effectively accelerate the electron transfer from the bacteria to anode.When the manganese sulfate content was 4%,the anode performance was best,the battery internal resistance was minimum,and the value of the maximum power output density was 51.64 mW/m2,3 times higher than that of the plain graphite electrode.
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