title: Carbon nanofibers modified graphite felt for high performance anode in high substrate concentration microbial fuel cells.
abstract: Carbon nanofibers modified graphite fibers (CNFs/GF) composite electrode was prepared for anode in high substrate concentration microbial fuel cells. Electrochemical tests showed that the CNFs/GF anode generated a peak current density of 2.42 mA cm(-2) at a low acetate concentration of 20 mM, which was 54% higher than that from bare GF. Increase of the acetate concentration to 80 mM, in which the peak current density of the CNFs/GF anode greatly increased and was up to 3.57 mA cm(-2), was seven times as that of GF anode. Morphology characterization revealed that the biofilms in the CNFs/GF anode were much denser than those in the bare GF. This result revealed that the nanostructure in the anode not only enhanced current generation but also could tolerate high substrate concentration.
authors.affiliation: School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China ; Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science & Technology Normal University, Nanchang 330013, China.
authors.forename: Youliang
authors.initials: Y
authors.lastname: Shen
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
authors.forename: Shuiliang
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
authors.forename: Fangfang
authors.initials: F
authors.lastname: Yang
authors.affiliation: Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
authors.forename: Suqi
authors.initials: S
authors.lastname: Zheng
authors.affiliation: School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China ; Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
authors.forename: Haoqing
authors.initials: H
authors.lastname: Hou
mesh_terms: D001674:Bioelectric Energy Sources; D004553:Electric Conductivity; D004566:Electrodes; D006108:Graphite; D057139:Nanofibers
chemical_list: D006108:Graphite