TiO2 Nanotube Heterostructure Modified with a Metal-Organic Framework Showing Robust Stability for Photocathodic Protection

doi:10.1149/1945-7111/ac1496

IMR OpenIR

	TiO2 Nanotube Heterostructure Modified with a Metal-Organic Framework Showing Robust Stability for Photocathodic Protection
	Lu,Xiayu 1,2; Liu,Li 3; Cui,Yu 4; Wang,Fuhui 3
通讯作者	Lu,Xiayu() ; Liu,Li()
	2021-07-01
发表期刊	Journal of The Electrochemical Society
ISSN	0013-4651
卷号	168 期号:7
摘要	TiO2 p-n heterojunctions modified with zeolitic imidazolate framework-67 (ZIF-67), a metal-organic framework, were successfully fabricated by a solution self-assembly method, and their photoelectrochemical and photocathodic performance was investigated. The presence of the organic ligands in ZIF-67 enabled ZIF-67-TiO2 photoanodes to exhibit excellent stable cathodic protection performance under simulated sunlight illumination compared with traditional organic or inorganic cocatalysts. ZIF-67-TiO2 photoanodes could provide 12 h of effective and stable photocathodic protection for 304 stainless steel (304SS) in 3.5 wt% NaCl solution. Experimental results revealed that the morphology of ZIF-67 cocatalysts affected the photoelectrochemical performance of ZIF-67-TiO2 photoanodes. Compared with large (～900 nm) ZIF-67-modified TiO2, small (～115 nm) ZIF-67-modified TiO2 demonstrated an upwardly shifted conduction band (CB) and faster separation and migration of photogenerated carriers. Furthermore, a photoanode made from small ZIF-67-modified TiO2 exhibited a lower photogenerated potential (?0.37 V) than the photoanodes made from large ZIF-67-modified TiO2 and TiO2, this photoanode could provide more effective photocathodic protection for 304SS.
关键词	TiO2 ZIF-67 Surface modification P-n heterojunction Photocathodic protection
DOI	10.1149/1945-7111/ac1496
语种	英语
WOS记录号	IOP:0013-4651-168-7-ac1496
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/159437
专题	中国科学院金属研究所
通讯作者	Lu,Xiayu; Liu,Li
作者单位	1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China 2.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, People’s Republic of China 3.Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, People’s Republic of China 4.Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
推荐引用方式 GB/T 7714	Lu,Xiayu,Liu,Li,Cui,Yu,et al. TiO2 Nanotube Heterostructure Modified with a Metal-Organic Framework Showing Robust Stability for Photocathodic Protection[J]. Journal of The Electrochemical Society,2021,168(7).
APA	Lu,Xiayu,Liu,Li,Cui,Yu,&Wang,Fuhui.(2021).TiO2 Nanotube Heterostructure Modified with a Metal-Organic Framework Showing Robust Stability for Photocathodic Protection.Journal of The Electrochemical Society,168(7).
MLA	Lu,Xiayu,et al."TiO2 Nanotube Heterostructure Modified with a Metal-Organic Framework Showing Robust Stability for Photocathodic Protection".Journal of The Electrochemical Society 168.7(2021).