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  • 文献标题:   Zn-doped hematite modified by graphene-like WS2: A p-type semiconductor hybrid photocathode for water splitting to produce hydrogen
  • 文献类型:   Article
  • 作　　者:   CHU DM, LI KZ, LIU AJ, HUANG L, ZHANG CY, YANG P, DU YK, LU C
  • 作者关键词:   ptype zndoped alphafe2o3, graphenelike ws2, photoelectrochemical tandem cell, water splitting, hydrogen production
  • 出版物名称:   INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • ISSN:   0360-3199 EI 1879-3487
  • 通讯作者地址:   Soochow Univ
  • 被引频次:   7
  • DOI:   10.1016/j.ijhydene.2018.02.152
  • 出版年:   2018

▎ 摘　　要

A p-type Zn-doped hematite (alpha-Fe2O3(Zn)) in spindle-shape with an acceptor density of ca. 4.21 x 10(18) cm(-3) were synthesized by a facile hydrothermal method. After alpha-Fe2O3(Zn) was modified with graphene-like WS2 (alpha-Fe2O3(Zn)/WS2), the photoelectrochemical performances of the composite can be further enhanced. A photocell composed of the p-type alpha-Fe2O3(Zn)/WS2 nanocomposite as photocathode and n-type alpha-Fe2O3 as photoanode was assembled to estimate the photocatalytic activity of alpha-Fe2O3(Zn)/WS2. The amount of the hydrogen and oxygen produced from this tandem cell with the optimal electrodes under 2 h simulated solar light irradiation is 12.5 mu mol and 4.3 mu mol, respectively. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.