Porous ceramic anode materials for photo-microbial fuel cells
Porous ceramic anode materials for photo-microbial fuel cells
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DOI：
10.1039/c1jm13058g
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发表时间：
2011-01-01
影响因子：
--
通讯作者：
Cameron, Petra J.
中科院分区：
文献类型：
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作者：
Thorne, Rebecca;Hu, Huaining;Cameron, Petra J.
本文研究了多孔陶瓷作为光微生物燃料电池（p- mfc）极具前景的新型负极材料。阳极由二氧化钛制成，并用化学气相沉积法在其表面涂上一层氟掺杂氧化锡（FTO）以使其导电。普通小球藻生物膜生长在陶瓷电极的毫米大小的孔中，产生广泛的额外细胞基质，直接固定在电极表面。相比之下，生长在碳毡上的藻细胞显得畸形，缺乏连续的细胞外基质。对p- mfc中不同阳极的初步比较表明，与性能最好的碳阳极相比，陶瓷阳极的功率密度高16倍。直接生长在FTO涂层玻璃上的藻类也发现了良好的功率密度，但与陶瓷阳极相比，生物膜不能牢固地粘附在平面表面，很容易被去除或损坏。
This study focuses on porous ceramics as a promising new type of anode material for photo-microbial fuel cells (p-MFCs). The anodes were made from titanium dioxide and chemical vapour deposition was used to coat them with a layer of fluorine doped tin oxide (FTO) to make them conducting. Chlorella vulgaris biofilms were grown in the millimetre sized pores of the ceramic electrodes, producing an extensive extra cellular matrix that was anchored directly to the electrode surface. In contrast algal cells grown on carbon felt appeared misshapen and lacked a continuous extra cellular matrix. A preliminary comparison of different anodes in p-MFCs showed that the power density was similar to 16 times higher on a ceramic anode compared to the best performing carbon anode. Good power densities were also found for algae grown directly onto FTO coated glass, but in contrast to the ceramic anodes the biofilm did not adhere strongly to the planar surface and was easily removed or damaged.