"Microbial reduction of graphene oxide by <i>Shewanella</i>" by Gongming Wang, Fang Qian et al.

Article Title

Microbial reduction of graphene oxide by Shewanella

Authors

Gongming Wang, Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, CA 95064, USA
Fang Qian, Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, CA 95064, USA Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
Chad W. Saltikov, Department of Microbiology and Environmental Toxicology, University of California, 1156 High Street, Santa Cruz, CA 95064, USA
Yongqin Jiao, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
Yat Li, Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, CA 95064, USA

Keywords

Electrogenic bacterial, graphene, green synthesis, extracellular electron transfer

Abstract

Graphene oxide (GO) can be reduced to graphene in a normal aerobic setup under ambient conditions as mediated by microbial respiration of Shewanella cells. The microbially-reduced graphene (MRG) exhibited excellent electrochemical properties. Extracellular electron transfer pathways at the cell/GO interface were systematically investigated, suggesting both direct electron transfer and electron mediators are involved in the GO reduction.