Monoethanolamine Electro-Oxidation Assists Efficient Hydrogen Evolution over Nickel Nanowire Arrays Anode

Abstract

Abstract In order to decrease the decomposition voltage of hydrogen evolution in ordinary alkaline or acidic water and simultaneously degrade the Ethanolamine (MEA) sewage, the efficient hydrogen evolution assisted by MEA electro-oxidation over nickel nanowire arrays anode is investigated in this work. The nickel nanowire arrays anode is successfully fabricated with the aid of the polycarbonate template and the low-melting point alloy. The electrochemical results show the driving voltage to deliver the same current density of 20 mA cm-2 in the 1.0 mol L-1 KOH/0.05 mol L-1 MEA solution is lowered by 12.2% than that in 1.0 mol L-1 KOH solution. The present study proves the viability to produce hydrogen efficiently by electrolyzing the MEA-containg water.