Experimental and theoretical demonstrations for the mechanism behind enhanced microbial electron transfer by CNT network.

ABSTRACT: Bioelectrochemical systems (BESs) share the principle of the microbially catalyzed anodic substrate oxidation. Creating an electrode interface to promote extracellular electron transfer from microbes to electrode and understanding such mechanisms are crucial for engineering BESs. In this study, significantly promoted electron transfer and a 10-times increase in current generation in a BES were achieved by the utilization of carbon nanotube (CNT) network, compared with carbon paper. The mechanisms for the enhanced current generation with the CNT network were elucidated with both experimental approach and molecular dynamic simulations. The fabricated CNT network was found to be able to substantially enhance the interaction between the c-type cytochromes and solid electron acceptor, indicatin

SUBMITTER: Liu XW 

PROVIDER: S-EPMC3893645 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature