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首页> 外文期刊>RSC Advances >Crosslinked inter penetrating network of sulfonated styrene and sulfonated PVdF-co-HFP as electrolytic membrane in a single chamber microbial fuel cell
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Crosslinked inter penetrating network of sulfonated styrene and sulfonated PVdF-co-HFP as electrolytic membrane in a single chamber microbial fuel cell

机译：磺化苯乙烯与磺化PVdF-co-HFP作为单室微生物燃料电池电解膜的交联互穿网络

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In the present study, semi-IPN membranes of sulfonated styrene (SS) and sulfonated PVdF-co-HFP membranes have been analyzed as a polymer electrolyte membrane in single chamber microbial fuel cells (MFCs). 5%, 10%, 20% and 30% sulfonated styrene (SS) with varying concentrations of divinyl benzene (DVB) have been polymerized in the presence of sulfonated PVdF-co-HFP to prepare SPS0 (0% SS), SPS-5 (5% SS), SPS-10 (10% SS), SPS-20 (20% SS) and SPS-30 (30% SS) membranes, respectively. Progressive improvements in membrane properties were observed with increasing SS and DVB concentrations, where excess DVB (<0.8 wt% of SS) resulted in increased crosslinks within the membrane structure. This eventually impeded the membrane properties and altered their rigidity. The membranes were characterized for their ion exchange capacity (IEC) and proton conductivity; IEC value of 0.39 meq g(-1), 0.42 meq g(-1), 0.47 meq g(-1), 0.54 meq g(-1) and 0.63 meq g(-1) and proton conductivity of 3.23 x 10(-3), 1.06 x 10(-2), 1.87 x 10(-2), 2.47 x 10(-2) and 1.61 x 10(-2) S cm(-1) were observed for SPS0 (0% SS), SPS-5 (5% SS), SPS-10 (10% SS), SPS-20 (20% SS) and SPS-30 (30% SS) membranes. The membranes were sandwiched as membrane electrode assemblies (MEA) and employed in single chamber MFCs with open air cathode to analyze their overall performance outputs. It was observed that amongst these membranes, the MFC with SPS-20 membrane showed the maximum power and current density of 447.42 +/- 22 mW m(-2) and 1729.63 +/- 87 mA m(-2) with an overall similar to 91.27% COD removal in 28 days of operation, using electrogenic mixed firmicutes as biocatalysts. Overall, this study reveals the relevance of semi-IPN membranes of sulfonated styrene (SS) and sulfonated PVdF-co-HFP in MFC applications for harvesting bio-energy.
机译：在本研究中，已经分析了单室微生物燃料电池（MFCs）中的磺化苯乙烯（SS）的半IPN膜和磺化的PVdF-co-HFP膜作为聚合物电解质膜。在磺化的PVdF-co-HFP存在下，将具有不同浓度的二乙烯基苯（DVB）的5％，10％，20％和30％的磺化苯乙烯（SS）进行聚合，以制备SPS0（0％SS），SPS-5 （5％SS），SPS-10（10％SS），SPS-20（20％SS）和SPS-30（30％SS）膜。随着SS和DVB浓度的增加，膜的性能逐渐改善，其中过量的DVB（SS的<0.8 wt％）导致膜结构内的交联增加。最终阻碍了膜的性能并改变了其刚性。膜的离子交换容量（IEC）和质子传导率得到了表征。 IEC值为0.39 meq g（-1），0.42 meq g（-1），0.47 meq g（-1），0.54 meq g（-1）和0.63 meq g（-1），质子电导率为3.23 x 10（对于SPS0（0％SS），观察到1.06 x 10（-2），1.87 x 10（-2），2.47 x 10（-2）和1.61 x 10（-2）S cm（-1） ，SPS-5（5％SS），SPS-10（10％SS），SPS-20（20％SS）和SPS-30（30％SS）膜。将该膜夹在中间作为膜电极组件（MEA），并用于带有露天阴极的单室MFC中，以分析其整体性能输出。观察到，在这些膜中，带SPS-20膜的MFC的最大功率和电流密度分别为447.42 +/- 22 mW m（-2）和1729.63 +/- 87 mA m（-2），总体上相似使用电混合硬脂酸酯作为生物催化剂，在使用28天后，COD去除率达到91.27％。总的来说，这项研究揭示了磺化苯乙烯（SS）和磺化PVdF-co-HFP的半IPN膜在MFC应用中与生物能源的相关性。

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