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ID 51520
creator
Matsuo, Yuki
Indra Wahyudhin Fathona
subject
Manganese
Amine
Complex ink
Thermal decomposition
Specific capacitance
abstract
A one-step direct fabrication of thin-film manganese oxide electrodes was accomplished via low-temperature thermal decomposition of inks composed of manganese formate (Mnf), alkylamines, and hexanol. As complexing agents, amines were used in molar ratios of Mnf:amine that ranged from 1:1 to 1:4. Prepared inks were directly coated onto the substrate, and then calcined at 170–210 °C under air. Cyclic voltammetry and charge/discharge measurements of the thin films were conducted in an electrolyte solution. Following immersion, the specific capacitance of the electrodes increased and eventually reached a constant value. Based on the results of cyclic voltammetry (CV) at 1 mV s−1, a thin-film electrode fabricated at 180 °C from Mnf-octylamine-hexanol ink at a molar ratio of 1:3:0.5 had the highest level of specific capacitance at 400 F g−1. CV measurement at 1000 cycles revealed a deterioration of specific capacitance of only 5%, which indicates good stability for this thin-film electrode.
journal title
Materials Science and Engineering: B
volume
Volume 262
start page
114754
date of issued
2020-12
publisher
Elsevier
issn
0921-5107
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
relation url
department
Graduate School of Advanced Science and Engineering
note
The full-text file will be made open to the public on 7 Sep 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.