Corrosion protection characterization of an Al/Au/ZnO anode.

摘要

Effective protection of power sources from corrosion is critical in the development of abiotic fuel cells, biobatteries and biofuel cells for implantable bioelectronics. Corrosion of these bioelectronic devices result in device inability to generate bioelectricity. Al/Au/ZnO was considered as a possible anode for the development for abiotic fuel cell applications. The protective abilities of corrosive resistant hopeite films formed on the surface of the Al/Au/ZnO anode in various electrolyte environments were examined by electrochemical methods. The presence of phosphate and NaCl in biological fluids allows for the formation of hopeite films that prevent corrosion. Highly protective films formed on the Al/Au/ZnO anode in physiological saline environment resulted in 98.5% corrosion protective efficiency, thereby demonstrating that the formation of hopeite films are effective in the prevention of anode corrosion.