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Scalable Fabrication of Photochemically Reduced Graphene-Based Monolithic Micro-Supercapacitors with Superior Energy and Power Densities
Wang, Sen1,2; Wu, Zhon-Shuai1; Zheng, Shuanghao1,2,3; Zhou, Feng1; Sun, Chenglin1; Cheng, Hui-Ming4,5; Bao, Xinhe1,3
关键词Graphene Photochemical Reduction Monolithic Micro-supercapacitors Supercapacitors Energy Storage
刊名ACS NANO
2017-04-01
DOI10.1021/acsnano.7b01390
11期:4页:4283-4291
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]ALL-SOLID-STATE ; HIGH-PERFORMANCE ; ELECTROCHEMICAL CAPACITORS ; PHOTOCATALYTIC REDUCTION ; VOLUMETRIC CAPACITANCES ; ULTRAHIGH-ENERGY ; GRAPHITE OXIDE ; COMPACT FILMS ; CARBON-FILMS ; STORAGE
英文摘要Micro-supercapacitors (MSCs) hold great promise as highly competitive miniaturized power sources satisfying the increased demand of smart integrated electronics. However, single-step scalable fabrication of MSCs with both high energy and power densities is still challenging. Here we demonstrate the scalable fabrication of graphene-based monolithic MSCs with diverse planar geometries and capable of superior integration by photochemical reduction of graphene oxide/TiO2 nanoparticle hybrid films. The resulting MSCs exhibit high volumetric capacitance of 233.0 F cm(-3), exceptional flexibility, and remarkable capacity of modular serial and parallel integration in aqueous gel electrolyte. Furthermore, by precigely engineering the interface of electrode with electrolyte, these monolithic MSCs can operate well in a hydrophobic electrolyte of ionic liquid (3.0 V) at a high scan rate of 200 V s(-1), two orders of magnitude higher than those of conventional supercapacitors. More notably, the MSCs show landmark volumetric power density of 312 W cm(-3) and energy density of 7.7 mWh cm(-3), both of which are among the highest values attained for carbon-based MSCs. Therefore, such monolithic MSC devices based on photochemically reduced, compact graphene films possess enormous potential for numerous miniaturized, flexible electronic applications.
语种英语
WOS记录号WOS:000400233200090
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/151981
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
5.Tsinghua Univ, TBSI, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
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Wang, Sen,Wu, Zhon-Shuai,Zheng, Shuanghao,et al. Scalable Fabrication of Photochemically Reduced Graphene-Based Monolithic Micro-Supercapacitors with Superior Energy and Power Densities[J]. ACS NANO,2017,11(4):4283-4291.
APA Wang, Sen.,Wu, Zhon-Shuai.,Zheng, Shuanghao.,Zhou, Feng.,Sun, Chenglin.,...&Bao, Xinhe.(2017).Scalable Fabrication of Photochemically Reduced Graphene-Based Monolithic Micro-Supercapacitors with Superior Energy and Power Densities.ACS NANO,11(4),4283-4291.
MLA Wang, Sen,et al."Scalable Fabrication of Photochemically Reduced Graphene-Based Monolithic Micro-Supercapacitors with Superior Energy and Power Densities".ACS NANO 11.4(2017):4283-4291.
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