Graphene oxide (GO) is an emerging material for energy and environmental applications, but it has been primarily produced using chemical processes involving high energy consumption and hazardous chemicals. In this study, we reported a new bioelectrochemical method to produce GO from graphite under ambient conditions without chemical amendments, value-added organic compounds and high rate H2 wer...

Microorganisms naturally form biofilms on solid surfaces for their mutual benefits including protection from environmental stresses caused by contaminants, nutritional depletion or imbalances. The biofilms are normally dangerous to human health due to their inherited robustness. On the other hand, a recent study suggested that electrochemically active biofilms (EABs) generated by electrically a...

Oxygen reducing biocathodes were formed at−0.2 V/SCE (+0.04 V/SHE) from compost leachate. Depending on whether aerationwas implemented or not, two different redox systems responsible for the electrocatalysis of oxygen reduction were evidenced. System I was observed at low potential (−0.03 V/SHE) on cyclic voltammetries (CVs). It appeared during the early formation of the biocathode (few hours) ...

Oxygen-reducing biocathodes previously developed for microbial fuel cells (MFCs) have required energy-intensive aeration of the catholyte. To avoid the need for aeration, the ability of biocathodes to function with passive oxygen transfer was examined here using air cathode MFCs. Two-chamber, air cathode MFCs with biocathodes produced a maximum power density of 554 ± 0 mW/m(2), which was compar...

We present novel supported electro-catalytic systems based on metallic/bimetallic (Pt, Au-Pt) nanoparticles decorated carbon nanotubes Buckypaper (BP), and Bilirubin Oxidase (BOD) decorated Buckypaper-based biocathodes in neutral medium for direct glucose fuel cell. The electrodes have been tested for their suitability in mixed-reactant biofuel cell applications in a phosphate buffer solution (...