ERATO Hashimoto Light Energy Conversion Project, Japan Science and Technology Agency, 7-3-1 Hongo, Tokyo 113-8656, Japan.
Phys Chem Chem Phys. 2011 Sep 7;13(33):15016-21. doi: 10.1039/c1cp21813a. Epub 2011 Jul 25.
We demonstrate the utility of hierarchical micro/nano structures of electrically conductive carbon composites as anodes for microbial fuel cells (MFCs). To construct the hierarchical structures, carbon nanotubes (CNTs) were directly grown on micro-porous graphite felts at high densities. Using the CNT-modified felts as anodes, power outputs from MFCs were increased ∼7 fold compared to those with bare graphite-felt anodes. We also show that this power improvement is sustainable even in MFCs operated with naturally occurring microbial communities. These results suggest the wide utility of the hierarchical micro/nano structures of conductive carbon composites for bio-electrochemical processes.
我们展示了导电碳复合材料的分层微/纳米结构作为微生物燃料电池（MFC）阳极的实用性。为了构建分层结构，将碳纳米管（CNT）直接在高密度下生长在微孔石墨毡上。使用 CNT 改性的毛毡作为阳极，与使用裸石墨毡阳极的 MFC 相比，MFC 的功率输出增加了约 7 倍。我们还表明，即使在使用自然存在的微生物群落运行的 MFC 中，这种功率提升也是可持续的。这些结果表明导电碳复合材料的分层微/纳米结构在生物电化学过程中有广泛的应用。
