Key Laboratory of Industrial Ecology and Environmental Engineering, MOE, School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, PR China.
Biosens Bioelectron. 2011 Jan 15;26(5):1975-9. doi: 10.1016/j.bios.2010.08.061. Epub 2010 Aug 26.
This study focuses on the preparation of a new type of Prussian Blue/polyaniline (PB/PANI)-modified electrode as oxygen reduction cathode, and its availability in microbial fuel cell (MFC) for biological power generation. The PB/PANI-modified electrode was prepared by electrochemical and chemical methods, both of which exhibited good electrocatalytical reactivity for oxygen reduction in acidic electrolyte. The MFC with PB/PANI-modified cathode aerated by either oxygen or air was shown to yield a maximum power density being the same with that of the MFC with liquid-state ferricyanide cathode, and have an excellent duration as indicated by stable cathode potential for more than eight operating circles. This study suggests a promising potential to utilize this novel electrode as an effective alternative to platinum for oxygen reduction in MFC system without losing sustainability.
本研究专注于制备一种新型普鲁士蓝/聚苯胺（PB/PANI）修饰电极作为氧还原阴极，并将其应用于微生物燃料电池（MFC）中进行生物发电。采用电化学和化学方法制备了 PB/PANI 修饰电极，在酸性电解质中均表现出良好的氧还原电催化活性。结果表明，以氧气或空气为氧化剂对 PB/PANI 修饰阴极进行曝气的 MFC 的最大功率密度与以液态铁氰化物为阴极的 MFC 相同，并且具有出色的稳定性，阴极电位稳定超过八个运行周期。本研究表明，这种新型电极作为替代铂的有效方法，具有在不降低可持续性的情况下，在 MFC 系统中用于氧还原的应用潜力。
