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| Influence of DMF Modified TiO2 Film on the Photogenerated Cathodic Protection Behavior |
Ping QIU( ), Lianjie YANG, Yu SONG, Hongfei YANG |
| Beijing Key Laboratory of Failure, Corrosion and Protection of Oil/Gas Facilities, Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China |
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Abstract TiO2 film surface normally presents micro porous after annealing treatment, which is one of the key factors on restraining the application of photogenerated cathodic protection of it. This study has prepared DMF modified TiO2 film by sol-gel and dip-coating method on the substrate of FTO glass. The influence of DMF on the corresponding film composition, microstructure and surface wettability are explored by XRD, Raman spectroscopy and SEM. The property of photo response and cathodic protection behavior of the film coupled with 316 stainless steel are studied under UV illumination. The results indicated that the addition of DMF has essentially improved the compact continuity of the TiO2 film, which supplies effective inhibition on the corrosive ions migration to the substrate. And the modified film presents comparable photogenerated cathodic protection property to that of pure TiO2 film.
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Received: 16 May 2017
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| Fund: Supported by National Natural Science Foundation of China (51301199) and Elite Young Researcher Foundation of China University of Petroleum (2462015YQ0602) |
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