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Research progress of TiO2 photocathodic protection to metals in marine environment |
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| Authors: | Wang Xiutong Xu Hui Nan Youbo Sun Xin Duan Jizhou Huang Yanliang Hou Baorong |
| Institution: | 1.Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China ;2.Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China ;3.University of Chinese Academy of Sciences, Beijing, 100049, China ;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China ; |
| Abstract: | Corrosion protection has become an important issue as the amount of infrastructure construction in marine environment increased.Photocathodic protection is a promising method to reduce the corrosion of metals,and titanium dioxide(TiO_2) is the most widely used photoanode.This review summarizes the progress in TiO_2 photo gene rated protection in recent years.Different types of semiconductors,including sulfides,metals,metal oxide s,polymers,and other materials,are used to design and modify TiO_2.The strategy to dramatically improve the efficiency of photoactivity is proposed,and the mechanism is investigated in detail.Characterization methods are also introduced,including morphology testing,light absorption,photoelectrochemistry,and protected metal observation.This review aims to provide a comprehensive overview of Ti02 development and guide photocathodic protection. |
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