Glycerol, which is major by-product for biodiesel production, is highly potential biomass material due to carbon source and non-toxicity but, increased production of biodiesel resulted in oversupply of glycerol.

   Electrocatalytic oxidation of glycerol (GEOR) is a effective technology to transformation surplus glycerol into valuable products such as glyceraldehyde (GAD), glycolic acid (GCA) and dihydroxyacetone (DHA) with high energy efficiency and valuable hydrogen gas was generated at counter electrode simultaneously.