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腐蚀科学与防护技术 2009
PHOTOELECTROCHEMICAL STUDY OF CORROSION PERFORMANCE OF SELF-ASSEMBLED MONOLAYER OF PHYTIC ACID ON Cu-Ni ALLOY B30
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Abstract:
The corrosion inhibition of the self-assembled monolayer of phytic acid on Cu-Ni alloy B30 in a solution of 0.075 mol/LNa2B4O7+0.15 mol/L H3BO3 with pH=8.5 was investigated by cyclic voltammetry and photocurrent response method.The results indicate that phytic acid is liable to interact with B30 resulting in formation of a complex on B30 surface with good resistance to rust and corrosion.The Cu-Ni alloy B30 electrode showed p-type photoresponse,which came from Cu2O layer on its surface.The photoresponse dec...