Highly Localized Charges of Confined Electrical Double-Layers Inside 0.7-nm Layered Channels

doi:10.1002/aenm.202300716

IMR OpenIR

	Highly Localized Charges of Confined Electrical Double-Layers Inside 0.7-nm Layered Channels
	Chen, Bin 1,2; Zhai, Zhaofeng 1; Huang, Nan 1,2; Zhang, Chuyan 1,3; Yu, Siyu 4; Liu, Lusheng 1; Yang, Bing 1,2; Jiang, Xin 1,3; Yang, Nianjun 5,6
通讯作者	Huang, Nan(nhuang@imr.ac.cn) ; Jiang, Xin(xjiang@imr.ac.cn) ; Yang, Nianjun(nianjun.yang@uhasselt.be)
	2023-08-09
发表期刊	ADVANCED ENERGY MATERIALS
ISSN	1614-6832
页码	11
摘要	A confined electrical double-layer (EDL) inside nanoporous electrodes has a large capacitance and deviates from traditional ones. Unfortunately, its capacitive mechanism is still unclear. Herein, expanded vertical graphene/diamond (EVG/D) films with regular and ordered 0.7-nm layered channels are designed and synthesized to serve as an ideal model for understanding confined EDL. A clear overall picture of confined EDL is provided at an atomic resolution with the aid of in situ electrochemical Raman spectroscopy, electrochemical quartz crystal microbalance (EQCM), and density functional theory (DFT) calculations combined with three-dimension reference interaction site method (3D-RISM). It is especially interesting that the induced charges in electrode hosts are highly localized with a density far higher than that on a traditional EDL and even close to those of ion batteries. It is proposed that such a high localization of induced charges plays an essential role in the high energy storage efficiency of confined EDL capacitance. This work not only provides a previously unexplored way to refine the mechanism of confined EDL, but also further lays the foundation for understanding the functions of nanoporous or layered materials in electrochemical energy storage.
关键词	confined electrical double layers expanded vertical graphene in situ electrochemical Raman localized charge expanded vertical diamond
资助者	National Natural Science Foundation of China ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
DOI	10.1002/aenm.202300716
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51202257] ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)[457444676]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001044772400001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178832
专题	中国科学院金属研究所
通讯作者	Huang, Nan; Jiang, Xin; Yang, Nianjun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany 4.Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China 5.Hasselt Univ, Dept Chem, B-3590 Diepenbeek, Belgium 6.Hasselt Univ, IMO IMOMEC, B-3590 Diepenbeek, Belgium
推荐引用方式 GB/T 7714	Chen, Bin,Zhai, Zhaofeng,Huang, Nan,et al. Highly Localized Charges of Confined Electrical Double-Layers Inside 0.7-nm Layered Channels[J]. ADVANCED ENERGY MATERIALS,2023:11.
APA	Chen, Bin.,Zhai, Zhaofeng.,Huang, Nan.,Zhang, Chuyan.,Yu, Siyu.,...&Yang, Nianjun.(2023).Highly Localized Charges of Confined Electrical Double-Layers Inside 0.7-nm Layered Channels.ADVANCED ENERGY MATERIALS,11.
MLA	Chen, Bin,et al."Highly Localized Charges of Confined Electrical Double-Layers Inside 0.7-nm Layered Channels".ADVANCED ENERGY MATERIALS (2023):11.