Enhanced electrical contact of microbes using Fe3O4/CNT nanocomposite anode in mediator-less microbial fuel cell

PEDOT:PSS-based Multilayer Bacterial-Composite Films for Bioelectronics

“… Strategy Description Anode substrate Inoculant Current density improvement Ref. 3D bacterial composite electropolymerized PEDOT:PSS-based bacterial-composite carbon felt S. oneidensis MR-1 20x This work bacteria captured by biologicially reduced graphene oxide network carbon cloth S. oneidensis MR-1 25x 40 iron(II,III) oxide/carbon nanotube nanocomposite co-cultured with bacteria, magnetically assembled carbon paper E. coli K12 18x 44 bacteria individually coated with PPy carbon cloth S. oneidensis MR-1 12x 17 bacteria embedded in graphite particle/PPy matrix carbon cloth S. oneidensis MR-1 7x 45 PMBVF/PVA hydrogel surrounding bacteria ITO S. oneidensis MR-1 5x 46 Improve native biofilm conductivity iron(III) oxide nanocolloid doped biofilm ITO S. loihica PV-4 80x 47 poly(vinyl alcohol- co -polyethylene) nanofibers PPy/PET E. coli K12 9x 16 gold nanoparticle doped biofilm carbon plate G. sulfurreducens 1.4x 12 Chemical treatment of anode oxygen plasma carbon paper wastewater 4x 48 ammonium nitrate carbon mesh wastewater 2x 49 nitric and sulfuric acid carbon clo...…”

Fabrication of Ni nanoparticles-dispersed carbon micro-nanofibers as the electrodes of a microbial fuel cell for bio-energy production

“…(1) E. coli present in the biofilm can self-mediate the extracellular electron transfer through the electrochemically activated excretion of electron shuttling redox molecules which work as a mediator for the electron transfer [6,29,30], and (2) the pili of E. coli also facilitate the electron transfer to anode [31]. In addition to the redox molecules produced by E. coli and/or the pili of E. coli, the metal NPs or carbon-based nanomaterials can also facilitate the electron transfer from E. coli to electrodes in the mediator-less MFCs [32,33].…”

Positive effects of concomitant heavy metals and their reduzates on hexavalent chromium removal in microbial fuel cells

“…22 Similar synergistic effects have also been found in other nanocomposite modication studies using MWCNTs blending with metal nanoparticles such as TiO 2 , Fe 3 O 4 , and SnO 2 . 21,23,24 Furthermore, the interfacial electrochemical properties of modied electrodes were also evaluated by EIS. 25 Fig.…”