Journal
MATERIALS LETTERS
Volume 107, Issue -, Pages 115-118Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.05.053
Keywords
Composite materials; Electrodeposition; Energy storage and conversion
Funding
- Fundamental Research Funds for the Central Universities [lzujbky-2012-69, lzujbky-2012-79, lzujbky-2012-22]
- Program for New Century Excellent Talents in University [NCET-12-0356]
- Shanghai Pujiang Program [11PJD011]
- Natural Science Foundation of China [11274145]
Ask authors/readers for more resources
This work reports the synthesis of novel nanocomposite electrodes based on MnO2 nanosheets, Pt, Au, or Pd nanoparticles (NPs), exfoliated carbon nanotubes (CNTs), and Ni foam (NF) substrates. The MnO2-Pd-CNT-NF electrode in 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIM-PF6)/N, N-dimethylformamide (DMF) electrolyte exhibits a high specific capacitance of 559.1 F/g based on MnO2 with a wide potential window (2.1 V). To the best of our knowledge, this is one of the highest capacitance for MnO2 in ionic liquid (IL) electrolytes ever reported. The IL hybrid supercapacitors are assembled using MnO2-Pd-CNTs-NF positive electrode, activated carbon (AC) negative electrode, and BMIM-PF6/DMF electrolyte displaying high operating voltage (3 V), high energy density (78.4 Wh/kg) and high power density (12.7 kW/kg). The superior performances of the MnO2 IL hybrid supercapacitors suggest their potential application for the future generation of electrochemical power sources. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available