Influences of Environment-Friendly Additives on Electrochemical Properties of Aluminum Anode Materials in 4 Mol/L KOH Solution

Abstract:

To increase active property of aluminum anode material and decrease its corrosion rate, the effect of urotropine ((CH₂)₆N₄) and saturated Ca (OH)₂ environment-friendly additives on electrochemical behaviors of aluminum anode (99.999%) has been investigated by adding urotropine and saturated Ca (OH)₂ into 4 mol/L KOH solution. The results show that additive urotropine ((CH₂)₆N₄) can decrease the hydrogen-segregation and can increase activation property of aluminum anode greatly. With 1.0 % (w) of urotropine ((CH₂)₆N₄) and saturated Ca (OH)₂ addition in 4mol/L KOH solution, the corrosion current of aluminum anode becomes to minimum; its corrosion-inhibition ratio gets high to 87.3%. At the-1.20 V potential the current density of aluminum anode reaches to 37.7 mA.cm^-2; the open circuit potential (E_ocp) moves negatively and greatly to-1.815 V.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 47-50
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.47
• Online since: September 2013
• Authors: Zu Xiao Yu, Shi Xiong Hao, Qing Shan Fu
• Keywords: Aluminum Anode Material, Electrochemical Properties, Environment-Friendlyadditives ((CH₂)₆N₄), KOH Solution

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