Photoelectrochemical cathodic protection of Cu<sub>2</sub>O/TiO<sub>2</sub> p-n heterojunction under visible light

Jing TIAN; Zhuoyuan CHEN; Jiangping JING; Chang FENG; Mengmeng SUN; Weibing LI

doi:10.1007/s00343-020-9327-y

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Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light

Chemistry | Updated：2023-04-27

- Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light
- Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light
- 海洋湖沼学报（英文） 2020年38卷第5期页码：1517-1531
- Affiliations：
  
  1.Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  2.School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  3.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
  4.University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  CHEN Zhuoyuan, zychen@qdio.ac.cn
- Funds：
  
  the National Natural Science Foundation of China(41576114);the National Natural Science Foundation of China(41676069);the State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China(614290101011703);the Qingdao Innovative Leading Talent Foundation a(15-10-3-15-(39)-zch);© Chinese Society for Oceanology and
- DOI：10.1007/s00343-020-9327-y
  中图分类号：
- 收稿：2019-12-19，
  
  录用：2020-1-30，
  
  网络首发：2020-03-16，
  
  纸质出版：2020-09
- Accepted：
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Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light[J]. 海洋湖沼学报（英文）, 2020,38(5):1517-1531.

Jing TIAN, Zhuoyuan CHEN, Jiangping JING, et al. Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light[J]. Journal of Oceanology and Limnology, 2020, 38(5): 1517-1531.
Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light[J]. 海洋湖沼学报（英文）, 2020,38(5):1517-1531. DOI： 10.1007/s00343-020-9327-y.

Jing TIAN, Zhuoyuan CHEN, Jiangping JING, et al. Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light[J]. Journal of Oceanology and Limnology, 2020, 38(5): 1517-1531. DOI： 10.1007/s00343-020-9327-y.

摘要

Abstract

The Cu

O/TiO

p-n heterojunction composite photoelectrodes were prepared by depositing Cu

O nanoparticles on the surface of TiO

nanotubes via anodic oxidation and constant current deposition. Field emission scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) analyses showed that Cu

O nanoparticles not only deposited on the surface of TiO

nanotube array

but also on the wall of TiO

nanotubes. The Cu

O deposition amount could be adjusted by changing the deposition time. The photoelectrochemical cathodic protection (PECCP) performance of the prepared photoelectrodes for 316L stainless steel (SS) was tested under visible light. The constant current deposition time had a significant effect on the PECCP performance of Cu

O/TiO

-X photoelectrodes and Cu

O/TiO

-20 had the best PECCP performance for the coupled 316L SS. This was attributed to the appropriate amount and thickness of Cu

O to form p-n heterojunctions with TiO

in which separation of the photogenerated carriers was accelerated and transfer of the photogenerated electrons to 316L SS for PECCP was facilitated.

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Keywords

references

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Photoelectrochemical cathodic protection of Cu2O/TiO2 p-n heterojunction under visible light

Photoelectrochemical cathodic protection of Cu2O/TiO2 p-n heterojunction under visible light

DOI：10.1007/s00343-020-9327-y

摘要

Abstract

关键词

Keywords

references

Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light

Photoelectrochemical cathodic protection of Cu₂O/TiO₂ p-n heterojunction under visible light