The electrochemical associated with photoelectrochemical behaviors of Cu electrodeposited with Cu_(2)O layer were investigated in this work.The corrosion of Cu was promoted due to the enhanced anodic and cathodic proc...The electrochemical associated with photoelectrochemical behaviors of Cu electrodeposited with Cu_(2)O layer were investigated in this work.The corrosion of Cu was promoted due to the enhanced anodic and cathodic processes under AM 1.5illumination compared with that in the darkness,especially for the anodic process.The photoinduced corrosion of Cu by Cu_(2)O was detected by Scanning Vibrating Electro Technique(SVET).The effect of Cu_(2)O on the promotion of Cu corrosion under illumination can be as-cribed to the narrowed depletion layer in Cu_(2)O under illumination,which facilitates the separation of hole-electron pairs.The resultant holes give rise to the oxidation of the Cu matrix and lead to a pro-moted corrosion consequently.Besides,a method for in-situ determining the photoinduced current of a semiconductor material is proposed.展开更多
Infrastructure mega-projects(IMPs)are large-scale engineering deliverables,such as hydropower projects,highspeed railways,expressway networks,gas pipeline projects,and long-span bridges.IMPs provide fundamental public...Infrastructure mega-projects(IMPs)are large-scale engineering deliverables,such as hydropower projects,highspeed railways,expressway networks,gas pipeline projects,and long-span bridges.IMPs provide fundamental public services for social production,economic development,and daily life,and form the backbone of modern societies.The importance of IMPs has necessitated an improved understanding of how these facilities are managed.展开更多
基金the Natural Science Foundation of Shandong(No.ZR2021MD002)the National Natural Science Foun-dation of China(Nos.41576114,42106051,and U2106206).
文摘The electrochemical associated with photoelectrochemical behaviors of Cu electrodeposited with Cu_(2)O layer were investigated in this work.The corrosion of Cu was promoted due to the enhanced anodic and cathodic processes under AM 1.5illumination compared with that in the darkness,especially for the anodic process.The photoinduced corrosion of Cu by Cu_(2)O was detected by Scanning Vibrating Electro Technique(SVET).The effect of Cu_(2)O on the promotion of Cu corrosion under illumination can be as-cribed to the narrowed depletion layer in Cu_(2)O under illumination,which facilitates the separation of hole-electron pairs.The resultant holes give rise to the oxidation of the Cu matrix and lead to a pro-moted corrosion consequently.Besides,a method for in-situ determining the photoinduced current of a semiconductor material is proposed.
文摘Infrastructure mega-projects(IMPs)are large-scale engineering deliverables,such as hydropower projects,highspeed railways,expressway networks,gas pipeline projects,and long-span bridges.IMPs provide fundamental public services for social production,economic development,and daily life,and form the backbone of modern societies.The importance of IMPs has necessitated an improved understanding of how these facilities are managed.
