Maghemite as a catalyst for glucose oxidation in a microfluidic fuel cell

作者：Galindo R; Dector A; Arriaga L G; Gutierrez S; Herrasti P^*

来源：Journal of Electroanalytical Chemistry, 2012, 671: 38-43.

DOI：10.1016/j.jelechem.2012.02.020

• Fuel cell
• Glucose
• Maghemite
• Microfluidic

We evaluated the performance of glucose/O-2 fuel cells, constructed as fluidic chips with controllable fuel flow and comprising a maghemite (gamma-Fe2O3) nanoparticle/GO(x)-coated anode and Pt nanoparticles as the cathode. Maghemite is a biocompatible material that mediates electron transfer during glucose oxidation. The open-circuit voltage of the cell was 0.30 V. with a maximum power density of 30 mu W cm(-2) at pH 7.4. The voltage cell and power density were compared with those of other microfluidic fuel cells. During continuous operation, the current density of the cell decreased to 50%, likely due to swelling of the enzyme bilayer.

• 出版日期2012-4-15