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Statistical optimization of process parameters in microbial fuel cell for enhanced power production using Sulphonated Polyhedral Oligomeric Silsesquioxane dispersed Sulphonated Polystyrene Ethylene Butylene Polystyrene nanocomposite membranes
Journal of Power Sources ( IF 8.1 ) Pub Date : 2020-06-08 , DOI: 10.1016/j.jpowsour.2020.228400
Moogambigai Sugumar , Sangeetha Dharmalingam

Novel Proton Exchange Membranes (PEMs) comprising Sulphonated Polyhedral Oligomeric Silsesquioxane (SPOSS) incorporated on Sulphonated Polystyrene Ethylene Butylene Polystyrene (SPSEBS) nanocomposites are prepared in different weight percentage of nano fillers (2–8%) by solution casting method. The successful sulphonation of the SPSEBS and SPOSS is confirmed by various characterization techniques. SPSEBS +6% SPOSS membrane exhibit the highest IEC value, water uptake and proton conductivity. Response Surface Methodology (RSM) is used to determine the effect of pH, substrate concentration and variation in anode material with SPSEBS + 6% SPOSS membrane for the performance in a fabricated tubular Microbial Fuel Cell (MFC) of 300 mL volume. The ideal concentration of each parameter is investigated and from the optimized conditions the highest maximum power density of 126 mW/m2 is obtained in STAT 13 at pH 7 with 75% substrate concentration using graphite rod as an electrode material after 3 weeks of operation time. In addition, initial biofilm studies are performed. The results of this study suggest a regression equation for optimizing the process parameters in addition to a new hybrid nanocomposite membrane fabricated for the first time which could be an appropriate PEM for the MFC system.



中文翻译:

使用磺化多面体低聚倍半硅氧烷分散的磺化聚苯乙烯乙烯丁烯聚苯乙烯纳米复合膜增强功率的微生物燃料电池过程参数的统计优化

通过溶液流延法,以不同重量百分比的纳米填料(2–8%)制备新型的质子交换膜(PEM),该膜包含掺入磺化聚苯乙烯乙烯丁烯聚苯乙烯(SPSEBS)纳米复合物中的磺化多面体低聚倍半硅氧烷(SPOSS)。各种表征技术证实了SPSEBS和SPOSS的成功磺化。SPSEBS + 6%SPOSS膜具有最高的IEC值,吸水率和质子传导率。响应表面方法学(RSM)用于确定pH,底物浓度和SPSEBS + 6%SPOSS膜在阳极材料中的变化对在300 mL体积的管状管状微生物燃料电池(MFC)中的性能的影响。2是在STAT 13在用75%的底物浓度pH为7使用石墨棒3周的操作时间之后的电极材料而获得。另外,进行了初始生物膜研究。这项研究的结果提出了一种回归方程,除了首次制造的新型杂化纳米复合膜外,还可以优化工艺参数,这可能是适合MFC系统的PEM。

更新日期:2020-06-08
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