SYNTHESIS, CHARACTERIZATION AND ELECTROCHEMICAL PERFORMANCE OF ACTIVATED CARBON SUPPORTED MnO2 FOR ELECTROCHEMICAL CAPACITOR

Authors

  • Thuy Thu Luong Thi Hanoi National University of Education
  • Khu Van Le Hanoi National University of Education
  • Lien Kim Nguyen Thi Hanoi National University of Education

DOI:

https://doi.org/10.15625/2525-2518/56/5/10997

Keywords:

Electrochemical capacitor, activated carbon, manganese oxide, magnetic stirring, ultrasonic stirring

Abstract

MnO2 was synthesized by adding activated carbon into KMnO4 solution and stirred in a magnetic or ultrasonic stirrer. The obtained MnAC samples were characterized by means of XRD, TGA, TPR-H2, SEM and BET. All samples are amorphous and have porous structure. MnAC-M prepared by magnetic stirring have higher manganese content, earlier reduction temperature, smoother surface area while MnAC-U prepared by ultrasonic stirring have larger specific surface area and pore volume.

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Author Biographies

Thuy Thu Luong Thi, Hanoi National University of Education

Faculty of Chemistry

Khu Van Le, Hanoi National University of Education

Faculty of Chemistry

Lien Kim Nguyen Thi, Hanoi National University of Education

Faculty of Chemistry

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Published

2018-10-10

Issue

Section

Materials