Photo-assisted reduction in nanostructured cerium-based coatings

被引：13
|
作者：
Castano, Carlos E. [1 ]
O'Keefe, Matthew J. [1 ]
Fahrenholtz, William G. [1 ]
机构：
[1] Missouri Univ Sci & Technol, Mat Res Ctr, Dept Mat Sci & Engn, Rolla, MO 65409 USA
来源：
SCRIPTA MATERIALIA | 2013年 / 69卷 / 06期
关键词：
Photochemical reaction; Cerium oxides; Nanostructured materials; Magnesium alloys; AQUEOUS SYSTEMS; PHASE-STABILITY; CEO2; DIAGRAM; OXIDE;
D O I：
10.1016/j.scriptamat.2013.06.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanostructured cerium-based coatings on AZ31 Mg alloy substrates exposed to sunlight under ambient conditions had an similar to 30% increase in Ce(III) species compared to unexposed coatings as measured by X-ray photoelectron spectroscopy. A decrease in film cracks and shift in bandgap from 2.5 eV to 2.7 eV were also measured. Visible changes in color, from yellow to translucent, with exposure were also observed and suggest that cerium-based coatings are reduced by light exposure in humid environments. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：489 / 492
页数：4
相关论文
共 50 条
  • [1] Cerium-based oxide coatings
    Castano, Carlos E.
    O'Keefe, Matthew J.
    Fahrenholtz, William G.
    CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2015, 19 (02): : 69 - 76
  • [2] Cerium-based nanomaterials for photo/electrocatalysis
    Ge Li
    Ping Wang
    Miao He
    Xilin Yuan
    Lulin Tang
    Zhenxing Li
    Science China(Chemistry), 2023, (08) : 2204 - 2220
  • [3] Cerium-based nanomaterials for photo/electrocatalysis
    Li, Ge
    Wang, Ping
    He, Miao
    Yuan, Xilin
    Tang, Lulin
    Li, Zhenxing
    SCIENCE CHINA-CHEMISTRY, 2023, 66 (08) : 2204 - 2220
  • [4] Cerium-based nanomaterials for photo/electrocatalysis
    Ge Li
    Ping Wang
    Miao He
    Xilin Yuan
    Lulin Tang
    Zhenxing Li
    Science China Chemistry, 2023, 66 : 2204 - 2220
  • [5] Cerium-based nanomaterials for photo/electrocatalysis
    Ge Li
    Ping Wang
    Miao He
    Xilin Yuan
    Lulin Tang
    Zhenxing Li
    Science China(Chemistry), 2023, 66 (08) : 2204 - 2220
  • [6] Microelectrochemical Testing of Cerium-Based Conversion Coatings
    Joshi, S.
    Fahrenholtz, W. G.
    O'Keefe, M.
    COATINGS FOR CORROSION PROTECTION, 2010, 25 (29): : 19 - 30
  • [7] CERIUM-BASED CONVERSION COATINGS ON ALUMINUM ALLOY 5556
    Zheludkova, Ekaterina
    Abrashov, Aleksey
    Grigoryan, Nelya
    Malenkova, Anastasiya
    Vagramyan, Tigran
    Men'shikov, Vladimir
    27TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2018), 2018, : 1292 - 1296
  • [8] Effect of Gelatin on the Performance of Cerium-based Conversion Coatings
    Liu, Haoquan
    Wang, Xin
    Xu, JiHui
    Liu, Qiang
    Gu, Songtao
    Jiang, Guijun
    Zhou, Meng
    MULTI-FUNCTIONAL MATERIALS AND STRUCTURES II, PTS 1 AND 2, 2009, 79-82 : 951 - 954
  • [9] Recent advances in nanostructured catalysts for photo-assisted dry reforming of methane
    Wang, C.
    Su, Y.
    Tavasoli, A.
    Sun, W.
    Wang, L.
    Ozin, G. A.
    Yang, D.
    MATERIALS TODAY NANO, 2021, 14 (14):
  • [10] Deposition of Cerium-Based Conversion Coatings on Aluminum Alloy 380
    Lin, Ci
    Maddela, Surender
    Fahrenholtz, William G.
    O'Keefe, Matthew J.
    INTERNATIONAL JOURNAL OF CORROSION, 2012, 2012
12345