Mel Patrick D. Malinis, Hernández Velasco, K. Pamintuan
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The maximum power density obtained by design was 82.54 µW/m2, while the average for each system is 26.99 µW/m2, 36.24 µW/m2, and 6.81 µW/m2, respectively. The effect of variations on electrode surface area ratio was also examined, and the results suggest that the design benefits from increasing the cathode surface area up to a cathode-anode surface area ratio of 2:1. This suggests that the cathode is the crucial component for this design due to it facilitating the rate-limiting step. Plant health was also found to be a contributing factor to PMFC performance, thereby suggesting that PMFCs are an interplay of several factors not limited to electrode surface area alone. The performance of the novel PMFC did not achieve those obtained from existing studies. 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引用次数: 1
摘要
植物微生物燃料电池(pmfc)是一种可持续的燃料电池衍生物,利用植物根沉积来产生生物电。在这项研究中,研究了新型3d打印水生PMFC组件的性能,该组件以石竹为模式植物。该设计使用1.75 mm Protopasta导电聚乳酸(PLA)作为电极,1.75 mm CCTREE聚对苯二甲酸乙二醇(PETG)长丝作为分离器。制备了原设计尺寸的pmfc(系统A)、阴极限制表面积变化的pmfc(系统B)和阳极限制表面积变化的pmfc(系统C) 3个体系,每个体系重复3次。设计得到的最大功率密度为82.54µW/m2,每个体系的平均功率密度分别为26.99µW/m2、36.24µW/m2和6.81µW/m2。对电极表面积比变化的影响也进行了研究,结果表明,将阴极表面积增加到阴极阳极表面积比为2:1的设计是有益的。这表明阴极是该设计的关键部件,因为它促进了限速步骤。植物健康也被发现是PMFC性能的一个促成因素,从而表明PMFC是几个因素的相互作用,而不仅仅局限于电极表面积。新型PMFC的性能没有达到现有研究的水平。然而,这项研究的结果表明,3d打印技术是PMFC技术的一种可能的改进,可以用于放大和功率放大。
Performance evaluation of the novel 3D-printed aquatic plant-microbial fuel cell assembly with Eichhornia crassipes rnia crassipes
Plant-Microbial Fuel Cells (PMFCs) are a sustainable derivative of fuel cells that capitalizes on plant rhizodeposition to generate bioelectricity. In this study, the performance of the novel 3D-printed aquatic PMFC assembly with Eichhornia crassipes as the model plant was investigated. The design made use of 1.75 mm Protopasta Conductive Polylactic Acid (PLA) for the electrodes and 1.75 mm CCTREE Polyethylene Terephthalate Glycol (PETG) filaments for the separator. Three systems were prepared with three replicates each: PMFCs with the original design dimensions (System A), PMFCs with cathode-limited surface area variations (System B), and PMFCs with anode-limited surface area variations (System C). The maximum power density obtained by design was 82.54 µW/m2, while the average for each system is 26.99 µW/m2, 36.24 µW/m2, and 6.81 µW/m2, respectively. The effect of variations on electrode surface area ratio was also examined, and the results suggest that the design benefits from increasing the cathode surface area up to a cathode-anode surface area ratio of 2:1. This suggests that the cathode is the crucial component for this design due to it facilitating the rate-limiting step. Plant health was also found to be a contributing factor to PMFC performance, thereby suggesting that PMFCs are an interplay of several factors not limited to electrode surface area alone. The performance of the novel PMFC did not achieve those obtained from existing studies. Nevertheless, the result of this study indicates that 3D-printing technology is a possible retrofit for PMFC technology and can be utilized for scale-up and power amplification.