中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Synergetic Effect of Conjugated Ni(OH)(2)/IrO2 Cocatalyst on Titanium-Doped Hematite Photoanode for Solar Water Splitting
作者: Wang, Zhiliang1, 2;  Liu, Guiji1, 2;  Ding, Chunmei1, 2;  Chen, Zheng1, 2;  Zhang, Fuxiang1;  Shi, Jingying1;  Li, Can1
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2015-08-27
DOI: 10.1021/acs.jpcc.5b04892
卷: 119, 期:34, 页:19607-19612
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Hematite is a promising photoanode material for renewable solar fuel production via photoelectrochemical (PEC) water splitting. However, the fast electron-hole recombination and sluggish surface reaction retard it from getting satisfied performance. Herein, hematite nanorod arrays doped with titanium (Ti-Fe2O3) on the surface were prepared by a solution-based process. Because of one-dimension anisotropy and improved charge transfer property, the photocurrent density is doubled compared to pure Fe2O3 at 1.50 V vs RHE under simulated sunlight (AM 1.5 G) irradiation. Loading conjugated Ni(OH)(2)/IrO, cocatalyst further leads to about 200 mV negative shift of the onset potential and dramatic increase of the applied bias photon-to-current efficiency (ABPE). We find that Ni(OH)(2) can efficiently capture the photogenerated holes from hematite as a hole-storage layer (HSL) to improve the charge transfer process across the interface of hematite and IrO2 electrocatalyst. Furthermore, the stored photogenerated holes in Ni(OH)(2) can be utilized by IrO2 for water oxidation more facilely. This synergetic effect along with the efficient surface doping are proposed to be responsible for the enhanced performance.
关键词[WOS]: PHOTOELECTROCHEMICAL HYDROGEN-PRODUCTION ;  OXYGEN EVOLUTION ;  SURFACE-STATES ;  LIGHT-DRIVEN ;  THIN-FILMS ;  OXIDATION ;  ENHANCEMENT ;  ELECTRODES ;  CATALYST ;  LAYER
语种: 英语
WOS记录号: WOS:000360415700005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146495
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China

Recommended Citation:
Wang, Zhiliang,Liu, Guiji,Ding, Chunmei,et al. Synergetic Effect of Conjugated Ni(OH)(2)/IrO2 Cocatalyst on Titanium-Doped Hematite Photoanode for Solar Water Splitting[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(34):19607-19612.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Zhiliang]'s Articles
 [Liu, Guiji]'s Articles
 [Ding, Chunmei]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Zhiliang]‘s Articles
 [Liu, Guiji]‘s Articles
 [Ding, Chunmei]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace