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题名: Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light
作者: Li, Hong1; Wang, Xiutong1; Wei, Qinyi1,2; Liu, Xueqing3; Qian, Zhouhai4; Hou, Baorong1
刊名: NANOTECHNOLOGY
出版日期: 2017-06-02
卷号: 28, 期号:22
关键词: titanium dioxide ; polarization ; graphene ; photocathodic protection
DOI: 10.1088/1361-6528/aa6e5d
文章类型: Article
英文摘要: Ag and graphene co-sensitized TiO2 composites were successfully fabricated and used as photoanodes for photogenerated cathodic protection of 304 stainless steel (304SS) under visible light. Graphene films was firstly deposited onto the TiO2 nanotube (NT) films via cyclic voltammetric electrodeposition. Ag/graphene/TiO2 films were then fabricated via dipping and photoreduction method. The morphology, composition and optical response of the Ag/graphene/ TiO2 NT composites were characterized by scanning electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy, UV-vis diffusion reflectance spectroscopy, respectively. The photocathodic protection performance of the Ag/graphene/ TiO2 composites were systematically studied through open-circuit potential and potentiodynamic polarization measurements in 3.5 wt% NaCl solution under visible light (lambda > 400 nm). The composites exhibited enhanced photogenerated cathodic protection performance for 304SS under visible light irradiation compared to pure TiO2. Graphene and Ag have a synergistic effect on the enhancement of photocathodic protection performance of TiO2. The composites prepared with 30-cycle graphene film and 15mM AgNO3 solution showed the optimal corrosion protection performance.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000401103900001
Citation statistics:
内容类型: 期刊论文
版本: 出版稿
URI标识: http://ir.qdio.ac.cn/handle/337002/136860
Appears in Collections:海洋腐蚀与防护研究发展中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Natl Oceanog Ctr, Qingdao 266071, Peoples R China
4.Zhejiang Power Corp, State Grid Corp China, Elect Power Res Inst, Hangzhou 310006, Zhejiang, Peoples R China

Recommended Citation:
Li, Hong,Wang, Xiutong,Wei, Qinyi,et al. Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light[J]. NANOTECHNOLOGY,2017,28(22).
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文件名: Enhanced photocathodic protection performance of Ag_graphene_TiO2 composite for 304SS under visible light.pdf
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