Stainless steel as an efficient electrocatalyst for water oxidation in alkaline solution

摘要

Commercially available 316L stainless steel was found to be a highly efficient material for catalytic water oxidation. By directly using the stainless steel as an anode without any substrate support, a 10 mA/cm(2) current density with 96% Faradaic efficiency was obtained at n = 0.37 V in alkaline solution (1 M KOH). The stainless steel film exhibits excellent longevity and a small Tafel slope of 30 mV/decade in water oxidation, making it an ideal anodic electrocatalyst. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.