检索结果-南通市图书馆

A symmetric MnO_2/MnO_2 flexible solid state supercapacitor operating at 1.6V with aqueous gel electrolyte

Journal of Energy Chemistry 2016年第3期25卷 463-471页

作者： Nilesh R.Chodankar deepak p.dubal Girish S.Gund Chandrakant D.Lokhande Thin Film physics Laboratory Department of Physics Shivaji University Catalan Institute of Nanoscience and Nanotechnology CIN2 ICN2 (CSIC-ICN) Campus UAB

The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices. This investigation provides practical evidence of the use of flexible solid state supercapacitors based on MnOelectrodes with polyvinylpyrrolidone(pVp)-Li ClOgel electrolyte. Initially, different acid mediated growths of MnOhave been carried. Later, the electrochemical performances of MnOelectrodes have been carried out. Impressively, the fabricated symmetric flexible solid state supercapacitor(FSS-SC) device demonstrates the highest operating potential window of 1.6 V with extended cycling stability. Moreover, the cell exhibits high energy density of 23 Wh/kg at power density of 1.9 k W/kg. It is interesting to note that the device shows excellent flexibility upon bending at angle of 180° for number of times. These results clearly evidenced those symmetric FSS-SC devices based on MnOelectrodes are promising energy storage devices for microelectronic applications.

关键词： MnO_2 thin film polymer gel electrolyte Flexible-all-solid-state supercapacitors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

High energy superstable hybrid capacitor with a self-regulated Zn/electrolyte interface and 3D graphene-like carbon cathode

引用

InfoMat 2022年第10期4卷 62-77页

作者： Nilesh R.Chodankar Swati J.patil Sangjin Lee Jaeho Lee Seung-Kyu Hwang pragati A.Shinde Indrajit V.Bagal Smita V.Karekar Ganji Seeta Rama Raju Kugalur Shanmugam Ranjith deepak p.dubal Yun-Suk Huh Young-Kyu Han Department of Energy and Material Engineering Dongguk University-SeoulSeoulRepublic of Korea Department of Biological Engineering NanoBio High-Tech Materials Research CenterInha UniversityIncheonRepublic of Korea Department of Biological Sciences and Bioengineering Inha UniversityIncheonRepublic of Korea Research Institute of Sciences and Engineering University of SharjahSharjahUnited Arab Emirates Department of physics Chonnam National UniversityGwangjuRepublic of Korea School of Chemistry and physics Centre for Materials ScienceQueensland University of Technology(QUT)BrisbaneQueenslandAustralia

Rechargeable aqueous zinc ion hybrid capacitors(ZIHCs),as an up-and-comer aqueous electrochemical energy storage system,endure in their infancy because of the substandard reversibility of Zn anodes,structural deterioration of cathode materials,and narrow electrochemical stability ***,a scalable approach is described that addresses Zn-anode/electrolyte interface and cathode materials associated deficiencies and boosts the electrochemical properties of *** Zn-anode/electrolyte interface is self-regulated by alteration of the traditional Zn2+electrolyte with Na-based supporting salt without surrendering the cost,safety,and green features of the Zn-based system which further validates the excellent reversibility over 1100 h with suppressed hydrogen *** deficits of cathode materials were overcome by using a high-mass loaded,oxygen-rich,3D,multiscaled graphene-like carbon(3D MGC)*** to the multiscaled texture,high electronic conductivity,and oxygen-rich functional groups of 3D MGC,reversible redox capacitance was obtained with a traditional adsorption/desorption *** ZIHCs containing the modified electrolyte and an oxygen-rich 3D MGC cathode resulted in battery-like specific energy(203 Wh kg1 at 1.6 A g^(-1))and supercapacitor-type power capability(4.9 kW kg1 at 8 A g^(-1))with outstanding cycling durability(96.75%retention over 30000 cycles at 10 A g^(-1)).These findings pave the way toward the utilization of highly efficient ZIHCs for practical applications.

关键词： electrolyte additive graphene-like carbon interface multivalent ion capacitor zinc

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Improving the charge kinetics through in-situ growth of NiSe nanoparticles on g-C_(3)N_(4)nanosheets for efficient hybrid supercapacitors

引用

Journal of Energy Chemistry 2023年第12期87卷 304-313,I0008页

作者： Somnath R.Khaladkar Oshnik Maurya Girish Gund Bhavesh Sinha deepak dubal R.R.Deshmukh Archana Kalekar Department of physics Institute of Chemical Technology(ICT)MatungaMumbai 400019MaharashtraIndia Department of physics Mahatma Phule ArtsScience and Commerce CollegePanvel 410206MaharashtraIndia National Center for Nanoscience and Nanotechnology University of MumbaiMumbai 400032MaharashtraIndia Centre for Materials Science School of Chemistry and PhysicsQueensland University of TechnologyBrisbane QLD 4000Australia

Nickel selenide(NiSe)has been a promising positive electrode for hybrid supercapacitors due to its multiple oxidation states,tunability,and high specific ***,sluggish ion transfers and particle agglomeration hamper its electrochemical *** the present study,we have grown NiSe nanoparticles on two-dimensional(2D)graphitic carbon nitride(g-C_(3)N_(4))nanosheets to realize three-dimensional(3D)*** 2D support,high nitrogen content,and features of g-C_(3)N_(4)enhanced the specific capacity of the NiSe/g-C_(3)N_(4)nanocomposite *** resulting nanocomposite shows a specific capacity of 320 mA h g^(-1)at a current density of 1 A g^(-1),which is considerably higher than pristine ***,the hybrid supercapacitor(HSC)device was fabricated using NiSe/g-C_(3)N_(4)composite as positive and activated carbon(AC)as negative *** cell delivered an energy density of 52.5 Wh kg^(-1)at a power density of 1488 W kg^(-1)with excellent cyclic stability of 84.9%over 8000 *** electrochemical performance enhancement corresponds to a 3D structure,high electrochemical active sites,and improved charge transportation at the electrode/electrolyte ***,the present work offers an easy approach and architectural design for high-performance HSC.

关键词： Nickel selenide Graphitic carbon nitride Nanocomposite Specific capacity Hybrid supercapacitor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：