title: Layer-by-layer self-assembled carbon nanotube electrode for microbial fuel cells application.
abstract: Anodic material is usually a limiting factor in power generation in microbial fuel cell (MFC). A meditatorless two-chambered MFC was constructed using new type of carbon nanotube (CNT)-based electrode architecture by layer-by-layer (LBL) self-assembly to increase power density. Multi-walled carbon nanotube (MWNT) and polyeletrolyte polyethyleneimine (PEI) were employed to modify carbon paper (CP) electrode utilizing a LBL self-assembly technique, and the electrochemical properties and performance of the modified electrode as an anode in MFC were investigated. The CNT-based LBL self-assembled electrode showed a better electrochemical performance than that of unmodified CP electrode. The self-assembled MWNT/PEI onto CP produced the maximum power density of 480 mW/m2, which was 48% larger than that of the plain CP anode. The CNT-based LBL self-assembled electrode therefore offers good prospects for application in MFCs.
authors.affiliation: Department of Chemical and Biochemical Engineering, Chosun University, Gwangju 501-759, Korea.
authors.forename: Sung-Hee
authors.initials: SH
authors.lastname: Roh
mesh_terms: D001674:Bioelectric Energy Sources; D004566:Electrodes; D008855:Microscopy, Electron, Scanning; D037742:Nanotubes, Carbon
chemical_list: D037742:Nanotubes, Carbon