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首页> 外文期刊>RSC Advances >Conductive polypyrrole hydrogels and carbon nanotubes composite as an anode for microbial fuel cells
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Conductive polypyrrole hydrogels and carbon nanotubes composite as an anode for microbial fuel cells

机译：导电聚吡咯水凝胶和碳纳米管复合材料作为微生物燃料电池的阳极

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Conducting polymer hydrogels, a unique class of materials having the advantageous features of both hydrogels and organic conductors, possess excellent electrochemical properties due to their intrinsic porous structure. Herein, we report a facile and scalable method for synthesizing conductive polypyrrole hydrogels/carbon nanotubes (CPHs/CNTs) using phytic acid as both gelator and dopant, and this composite was used as an anode in a dual-chamber microbial fuel cell (MFC). The high electrocatalytic activity of this material significantly reduced the interfacial charge transfer resistance and facilitated the extracellular electron transfer on the anode surface. The three dimensional porous structure and hydrophilicity of this composite enhanced the biofilm formation on the anode surface. CPHs/CNTs anode increased the maximum power density from 871 +/- 33 mW m(-2) to 1898 +/- 46 mW m(-2) and exhibited high stability in the two-chambered MFC. These results demonstrated that the synthesis of the CPHs/CNTs composite offered an effective approach towards enhancing the power production in MFCs.
机译：导电聚合物水凝胶是一类独特的材料，具有水凝胶和有机导体的优点，由于其固有的多孔结构而具有出色的电化学性能。本文中，我们报告了一种简便且可扩展的方法，该方法使用植酸作为胶凝剂和掺杂剂来合成导电聚吡咯水凝胶/碳纳米管（CPHs / CNT），并且该复合材料用作双室微生物燃料电池（MFC）的阳极。该材料的高电催化活性显着降低了界面电荷转移阻力，并促进了阳极表面上的细胞外电子转移。这种复合材料的三维多孔结构和亲水性增强了阳极表面上生物膜的形成。 CPHs / CNTs阳极将最大功率密度从871 +/- 33 mW m（-2）增加到1898 +/- 46 mW m（-2），并在两腔MFC中显示出高稳定性。这些结果表明，CPHs / CNTs复合材料的合成为提高MFC的发电能力提供了有效的方法。

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