Layer-by-layer assembly of exfoliated layered double hydroxide nanosheets for enhanced electrochemical oxidation of water

doi:10.1039/c6ta02537d

QIBEBT-IR > 仿生与固态能源系统研究组

	Layer-by-layer assembly of exfoliated layered double hydroxide nanosheets for enhanced electrochemical oxidation of water
	Zhang, Cong 1; Zhao, Jingwen 2; Zhou, Lei 1; Li, Zhenhua 1; Shao, Mingfei 1; Wei, Min 1
	2016
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
卷号	4 期号:29 页码:11516-11523
摘要	How to develop cost-effective electrocatalysts for the oxygen evolution reaction (OER) is one of the critical issues in renewable energy storage and conversion technology. Here, we report the preparation of well-ordered ultrathin film (UTF) electrodes based on layered double hydroxide nanosheets (LDH NSs) and iron porphyrin (Fe-PP) through an electrostatic layer-by-layer (LBL) technique, which show excellent OER performance. By virtue of the high catalytic activity of LDH NSs and good electron-transfer ability of Fe-PP, the resulting CoNi-LDH NS/Fe-PP UTF exhibits a remarkably low overpotential (264 mV) to attain an OER current density of 10 mA cm(-2) and a substantially decreased Tafel slope of 37.6 mV dec(-1), much superior to that of the IrO2 catalyst. Moreover, this method can be extended to the preparation of other UTFs based on LDHs and Fe-PP (e.g., CoMn-LDH NS/Fe-PP, CoFe-LDH NS/Fe-PP and ZnCo-LDH NS/Fe-PP) with significantly enhanced OER performance relative to pristine LDH NSs. To illustrate the advantage of these UTFs in practical water splitting, a prototype electrolyzer cell is also fabricated by using the (CoNi-LDH/Fe-PP)(30) UTF as the anode and Pt wire as the cathode, which achieves the production of both oxygen and hydrogen by using a 1.5 V AA battery as the power source.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1039/c6ta02537d
关键词[WOS]	OXYGEN EVOLUTION CATALYSIS ; EFFICIENT ELECTROCATALYST ; GRAPHENE ; OXIDE ; NANOPARTICLES ; COMPOSITE ; HYBRID ; CO3O4
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
项目资助者	National Natural Science Foundation of China (NSFC) ; 973 Program(2014CB932102) ; Fundamental Research Funds for the Central Universities(buctrc201506 ; Specialized Research Fund for the Doctoral Program of Higher Education(20130010110013) ; YS 1406)
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000379965800041
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8390
专题	仿生与固态能源系统研究组
作者单位	1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Qingdao Ind Energy Storage Res Inst, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Cong,Zhao, Jingwen,Zhou, Lei,et al. Layer-by-layer assembly of exfoliated layered double hydroxide nanosheets for enhanced electrochemical oxidation of water[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(29):11516-11523.
APA	Zhang, Cong,Zhao, Jingwen,Zhou, Lei,Li, Zhenhua,Shao, Mingfei,&Wei, Min.(2016).Layer-by-layer assembly of exfoliated layered double hydroxide nanosheets for enhanced electrochemical oxidation of water.JOURNAL OF MATERIALS CHEMISTRY A,4(29),11516-11523.
MLA	Zhang, Cong,et al."Layer-by-layer assembly of exfoliated layered double hydroxide nanosheets for enhanced electrochemical oxidation of water".JOURNAL OF MATERIALS CHEMISTRY A 4.29(2016):11516-11523.