聚吡咯/卡拉胶纳米生物复合材料的合成及其在微生物燃料电池阴极催化剂中的应用。
Synthesis and application of polypyrrole/carrageenan nano-bio composite as a cathode catalyst in microbial fuel cells.
机构信息
School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia-UKM, 43600 Bangi, Selangor, Malaysia.
Fuel Cell Institute, Universiti Kebangsaan Malaysia-UKM, 43600 Bangi, Selangor, Malaysia; Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia-UKM, 43600 Bangi, Selangor, Malaysia.
出版信息
Carbohydr Polym. 2014 Dec 19;114:253-259. doi: 10.1016/j.carbpol.2014.07.072. Epub 2014 Aug 13.
A novel nano-bio composite polypyrrole (PPy)/kappa-carrageenan(KC) was fabricated and characterized for application as a cathode catalyst in a microbial fuel cell (MFC). High resolution SEM and TEM verified the bud-like shape and uniform distribution of the PPy in the KC matrix. X-ray diffraction (XRD) has approved the amorphous structure of the PPy/KC as well. The PPy/KC nano-bio composites were then studied as an electrode material, due to their oxygen reduction reaction (ORR) ability as the cathode catalyst in the MFC and the results were compared with platinum (Pt) as the most common cathode catalyst. The produced power density of the PPy/KC was 72.1 mW/m(2) while it was 46.8 mW/m(2) and 28.8 mW/m(2) for KC and PPy individually. The efficiency of the PPy/KC electrode system is slightly lower than a Pt electrode (79.9 mW/m(2)) but due to the high cost of Pt electrodes, the PPy/KC electrode system has potential to be an alternative electrode system for MFCs.
一种新型纳米生物复合材料聚吡咯（PPy）/角叉菜胶（KC）被制备并被表征为应用于微生物燃料电池（MFC）的阴极催化剂。高分辨率 SEM 和 TEM 证实了 PPy 在 KC 基质中的芽状形状和均匀分布。X 射线衍射（XRD）也证实了 PPy/KC 的非晶结构。然后，由于 PPy/KC 纳米复合材料作为阴极催化剂在 MFC 中的氧还原反应（ORR）能力，将其作为电极材料进行了研究，并将结果与最常见的阴极催化剂铂（Pt）进行了比较。PPy/KC 的产电功率密度为 72.1 mW/m(2)，而 KC 和 PPy 单独的产电功率密度分别为 46.8 mW/m(2)和 28.8 mW/m(2)。PPy/KC 电极系统的效率略低于 Pt 电极（79.9 mW/m(2)），但由于 Pt 电极成本高，PPy/KC 电极系统有可能成为 MFC 的替代电极系统。
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