使用Nafion和负载离子液体膜运行的微生物电化学系统的性能评估

Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes.

作者信息

Koók László, Nemestóthy Nándor, Bakonyi Péter, Zhen Guangyin, Kumar Gopalakrishnan, Lu Xueqin, Su Lianghu, Saratale Ganesh Dattatraya, Kim Sang-Hyoun, Gubicza László

机构信息

Research Institute on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200, Veszprém, Hungary.

出版信息

Chemosphere. 2017 May;175:350-355. doi: 10.1016/j.chemosphere.2017.02.055. Epub 2017 Feb 9.

DOI:10.1016/j.chemosphere.2017.02.055

PMID:28235744

Abstract

In this work, the performance of dual-chamber microbial fuel cells (MFCs) constructed either with commonly used Nafion proton exchange membrane or supported ionic liquid membranes (SILMs) was assessed. The behavior of MFCs was followed and analyzed by taking the polarization curves and besides, their efficiency was characterized by measuring the electricity generation using various substrates such as acetate and glucose. By using the SILMs containing either [Cmim][PF] or [Bmim][NTf] ionic liquids, the energy production of these MFCs from glucose was comparable to that obtained with the MFC employing polymeric Nafion and the same substrate. Furthermore, the MFC operated with [Bmim][NTf]-based SILM demonstrated higher energy yield in case of low acetate loading (80.1 J g COD m h) than the one with the polymeric Nafion N115 (59 J g COD m h). Significant difference was observed between the two SILM-MFCs, however, the characteristics of the system was similar based on the cell polarization measurements. The results suggest that membrane-engineering applying ionic liquids can be an interesting subject field for bioelectrochemical system research.

摘要

在这项工作中，评估了用常用的纳滤质子交换膜或负载离子液体膜（SILMs）构建的双室微生物燃料电池（MFCs）的性能。通过绘制极化曲线跟踪和分析MFCs的行为，此外，通过测量使用各种底物（如乙酸盐和葡萄糖）发电来表征它们的效率。通过使用含有[Cmim][PF]或[Bmim][NTf]离子液体的SILMs，这些MFCs从葡萄糖中产生的能量与使用聚合物纳滤膜和相同底物的MFCs相当。此外，在低乙酸盐负载（80.1 J g COD m h）的情况下，使用基于[Bmim][NTf]的SILM运行的MFC比使用聚合物纳滤膜N115的MFC表现出更高的能量产率（59 J g COD m h）。然而，在两个SILM-MFCs之间观察到显著差异，但基于电池极化测量，系统的特性相似。结果表明，应用离子液体的膜工程可能是生物电化学系统研究中一个有趣的主题领域。