An oxygen-reducing biocathode with “oxygen tanks”
نویسندگان
چکیده
منابع مشابه
Identifying charge and mass transfer resistances of an oxygen reducing biocathode
In this study, we identified mass and charge transfer resistances for an oxygen reducing biocathode in a microbial fuel cell (MFC) by electrochemical impedance spectroscopy (EIS). The oxygen reducing biocathode was grown using nitrifying sludge as the inoculum. A standard model for charge transfer at the electrode surface combined with diffusion across a boundary layer was used. EIS measurement...
متن کاملSimulation of Oxygen Transfer Rates in Circular Aeration Tanks
Experiments were conducted to study the performance of circular and square tank surface aerators on the oxygen transfer coefficient and to a limited extent on power requirements. All the tanks are geometrically similar except for their shapes. They consist of a rotor of diameter, D, fixed with six flat blades rotating with a speed, N, in pure waters of viscosity, υ, at room temperature. A simul...
متن کاملOxygen-reducing biocathodes operating with passive oxygen transfer in microbial fuel cells.
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...
متن کاملMyoglobin: Just an Oxygen Store or Also an Oxygen Transporter?
Besides acting as an oxygen store during times of reduced blood oxygen supply, myoglobin can also facilitate intracellular oxygen transport by diffusion of oxymyoglobin along a PO(2) gradient. We reassess the importance of myoglobin-facilitated oxygen diffusion by applying new findings on the intracellular diffusivity of myoglobin in a model calculation.
متن کاملPlatinum Nanoparticles (PtNPs) - Laccase Assisted Biocathode Reduction of Oxygen for Biofuel Cells
Reduction of dioxygen catalyzed by laccase was studied at platinum nanoparticles (PtNPs) modified electrodes. PtNPs with laccase are directly fabricated on glassy carbon electrode (GCE) and indium tin oxide electrode (ITO) by simple process. The PtNPs/laccase modified ITO electrode surface has been studied in detail using atomic force microscopy (AFM). This PtNPs/laccase modified GCE effectivel...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Communications
سال: 2020
ISSN: 1359-7345,1364-548X
DOI: 10.1039/d0cc04031b