Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts

doi:10.1021/acsami.0c15568

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts
	Wang, Tong 1; Long, Xuefeng 2; Wei, Shenqi 1; Wang, Peng 1; Wang, Chenglong 1; Jin, Jun 1; Hu, Guowen 1
刊名	ACS Applied Materials and Interfaces
	2020-11-04
卷号	12 期号:44 页码:49705-49712
关键词	Charge transfer Fluorine Hematite Photocurrents Accelerated charge Electrodeposition methods Hematite photoanode Integration strategy Oxygen evolution reaction (oer) Photo-electrodes Photocurrent density Photogenerated holes
ISSN号	19448244
DOI	10.1021/acsami.0c15568
英文摘要	The charge transfer is a key issue in the development of efficient photoelectrodes. Here, we report a method using F-doping and dual-layer ultrathin amorphous FeOOH/CoOOH cocatalysts coupling to enable the inactive α-Fe2O3 photoanode to become highly vibrant for the oxygen evolution reaction (OER). Fluorine doping is revealed to increase the charge density and improve the conductivity of α-Fe2O3 for rapid charge transfer. Furthermore, ultrathin FeOOH was deposited on F-Fe2O3 to extract photogenerated holes and passivate the surface states for accelerated charge carrier transfer. Moreover, CoOOH as an excellent cocatalyst was coated onto FeOOH/F-Fe2O3 with the photoassisted electrodeposition method remarkably expediting OER kinetics through an optional pathway of holes utilized by Co species. Ultimately, the CoOOH/FeOOH/F-Fe2O3 photoanode exhibits a satisfactory photocurrent density (3.3-fold higher than pristine α-Fe2O3) and a negatively shifted onset potential of 80 mV. This work showcases an appealing maneuver to activate the water oxidation performance of the α-Fe2O3 photoanode by an integration strategy of heteroatom doping and cocatalyst coupling. © 2020 American Chemical Society.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000589384100038
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150876]
专题	石油化工学院
作者单位	1.State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu; 730000, China; 2.College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Tong,Long, Xuefeng,Wei, Shenqi,et al. Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts[J]. ACS Applied Materials and Interfaces,2020,12(44):49705-49712.
APA	Wang, Tong.,Long, Xuefeng.,Wei, Shenqi.,Wang, Peng.,Wang, Chenglong.,...&Hu, Guowen.(2020).Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts.ACS Applied Materials and Interfaces,12(44),49705-49712.
MLA	Wang, Tong,et al."Boosting Hole Transfer in the Fluorine-Doped Hematite Photoanode by Depositing Ultrathin Amorphous FeOOH/CoOOH Cocatalysts".ACS Applied Materials and Interfaces 12.44(2020):49705-49712.