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Fabrication of SrTiO3 nanocrystalline film photoelectrode and its photoelectrochemical anticorrosion properties for stainless steel

Fabrication of SrTiO3 nanocrystalline film photoelectrode and its photoelectrochemical anticorrosion properties for stainless steel
Fabrication of SrTiO3 nanocrystalline film photoelectrode and its photoelectrochemical anticorrosion properties for stainless steel
The photoelectrochemical properties of a SrTiO3 film coated on an indium-tin oxide (ITO) conducting glass were investigated for the anticorrosion of 304 stainless steel (304SS) under solar light illumination. The SrTiO3 nanocrystal powders were synthesized using a sol-gel process in the absence and presence of the cetyltrimethyl ammonium bromide (CTAB) surfactant and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was showed that the as-synthesized SrTiO3 materials exhibit a single perovskite structure and the presence of CTAB leads to uniform particles with an average size of 90 nm. The UV-Vis diffuse reflectance analysis shows that both SrTiO3 films that were prepared in the absence and presence of CTAB surfactant absorbs strongly in the UV region with an absorption threshold edge near 380 nm while the SiTiO3 prepared in the presence of CTAB exhibited a stronger absorption in the UV region than those in the absence of CTAB. The photo-electrochemical anticorrosion effects of SrTiO3 on 304 stainless steel substrates in a 0.5 mol·L-1 NaCl solution were investigated using a 0.1 mol·L-1 NaOH and 0.2 mol·L-1 Na2S hole sacrifice electrolyte solution. Metallographic images of the 304 stainless steel before and after immersion in a 0.5 mol·L-1 NaCl+0.05 mol·L-1 HCl solution for 6 h demonstrates that the SrTiO3 film coated photoelectrode exhibits excellent photoelectrochemical anticorrosion performance on 304 stainless steel.
1872-1508
2393-2399
Bu, Yu-yu
0a761456-4115-48c9-ada2-94c59288405a
Li, Wei-Bing
5cde735f-0d14-4e7f-bd16-5342331e5ed9
Yu, Jian-Qiang
44f0d78a-be62-4b7c-a944-6f9bd8cc0640
Wang, Xiu-Tong
c75fb13d-b23d-4b1b-8581-ff0295224c7a
Qi, Mei-Ling
13f08dcf-3ab5-4e7c-a809-3b6f80a9e5ea
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Hou, Bao-Rong
9f537712-6656-496c-a40a-9d526840bf31
Bu, Yu-yu
0a761456-4115-48c9-ada2-94c59288405a
Li, Wei-Bing
5cde735f-0d14-4e7f-bd16-5342331e5ed9
Yu, Jian-Qiang
44f0d78a-be62-4b7c-a944-6f9bd8cc0640
Wang, Xiu-Tong
c75fb13d-b23d-4b1b-8581-ff0295224c7a
Qi, Mei-Ling
13f08dcf-3ab5-4e7c-a809-3b6f80a9e5ea
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Hou, Bao-Rong
9f537712-6656-496c-a40a-9d526840bf31

Bu, Yu-yu, Li, Wei-Bing, Yu, Jian-Qiang, Wang, Xiu-Tong, Qi, Mei-Ling, Nie, Mengyan and Hou, Bao-Rong (2011) Fabrication of SrTiO3 nanocrystalline film photoelectrode and its photoelectrochemical anticorrosion properties for stainless steel. Acta Physico-Chimica Sinica, 27 (10), 2393-2399. (doi:10.3866/PKU.WHXB20110926).

Record type: Article

Abstract

The photoelectrochemical properties of a SrTiO3 film coated on an indium-tin oxide (ITO) conducting glass were investigated for the anticorrosion of 304 stainless steel (304SS) under solar light illumination. The SrTiO3 nanocrystal powders were synthesized using a sol-gel process in the absence and presence of the cetyltrimethyl ammonium bromide (CTAB) surfactant and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). It was showed that the as-synthesized SrTiO3 materials exhibit a single perovskite structure and the presence of CTAB leads to uniform particles with an average size of 90 nm. The UV-Vis diffuse reflectance analysis shows that both SrTiO3 films that were prepared in the absence and presence of CTAB surfactant absorbs strongly in the UV region with an absorption threshold edge near 380 nm while the SiTiO3 prepared in the presence of CTAB exhibited a stronger absorption in the UV region than those in the absence of CTAB. The photo-electrochemical anticorrosion effects of SrTiO3 on 304 stainless steel substrates in a 0.5 mol·L-1 NaCl solution were investigated using a 0.1 mol·L-1 NaOH and 0.2 mol·L-1 Na2S hole sacrifice electrolyte solution. Metallographic images of the 304 stainless steel before and after immersion in a 0.5 mol·L-1 NaCl+0.05 mol·L-1 HCl solution for 6 h demonstrates that the SrTiO3 film coated photoelectrode exhibits excellent photoelectrochemical anticorrosion performance on 304 stainless steel.

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Published date: 15 July 2011
Organisations: nCATS Group

Identifiers

Local EPrints ID: 363237
URI: https://eprints.soton.ac.uk/id/eprint/363237
ISSN: 1872-1508
PURE UUID: da4940e5-1592-4ad9-ae7c-d0d4f4bf1147
ORCID for Mengyan Nie: ORCID iD orcid.org/0000-0002-7758-760X

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Date deposited: 24 Mar 2014 10:22
Last modified: 13 Jun 2019 00:34

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