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A study of nano-structured manganese dioxides and their composites as electrode materials for micro supercapacitors

  • Tsinghua University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents the design, synthesis and characterization of nano-structured manganese dioxides (MnO 2) and their composites as electrode materials for micro supercapacitors. An optimized composite containing nano-MnO 2 powder exhibits a specific capacitance as high as 160F/g in 0.2M K 2SO 4 aqueous solution, and is compatible with micro fabrication process. Then a micro supercapacitor with 3D interdigital structure using the composite material as electrodes is achieved by MEMS fabrication technology. The micro supercapacitor has well-performed capacitive behavior under various scanning rates and has a large specific capacitance of 30mF/cm 2, which indicates that the composite is a promising material for energy storage on chips.

Original languageEnglish
Title of host publication2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012
Pages347-350
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012 - Kyoto, Japan
Duration: 5 Mar 20128 Mar 2012

Publication series

Name2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012

Conference

Conference7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012
Country/TerritoryJapan
CityKyoto
Period5/03/128/03/12

Keywords

  • liquid-phase redox
  • micro supercapacitor
  • nano-MnO

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