Polishable amperometric hydrogen peroxide sensor based on sol-gel-derived conductive composite containing vanadium-17-molybdodiphosphate

A new kind of conductive vanadium-17-molybdodiphosphate/graphite/methylsilicate composite was firstly prepared by the sol-gel technique and used as electrode material for the fabrication of amperometric hydrogen peroxide sensor. The remarkable advantage of the sensor is its excellent reproducibility of surface renewal by simple mechanical polishing.