TY - JOUR
T1 - Cerium-based metal–organic framework-conducting polymer nanocomposites for supercapacitors
AU - Chang, Y. L.
AU - Tsai, M. D.
AU - Shen, C. H.
AU - Huang, C. W.
AU - Wang, Yi-Ching
AU - Kung, C. W.
N1 - Funding Information:
We thank National Science and Technology Council (NSTC), Taiwan, for supporting this work. The project number is 110-2221-E-006-017-MY3. This work was also financially supported by Ministry of Education (MOE), Taiwan. Two projects under MOE, including the Yushan Young Scholar Program and Higher Education Sprout Project, supported the progress of this work. We also thank the support from the Core Facility Center of NCKU for the TEM measurements and Mr. Kun-Hsu Lee in Instrument Center of NCKU for GIXRD measurements.
Funding Information:
We thank National Science and Technology Council (NSTC), Taiwan, for supporting this work. The project number is 110-2221-E-006-017-MY3. This work was also financially supported by Ministry of Education (MOE), Taiwan. Two projects under MOE, including the Yushan Young Scholar Program and Higher Education Sprout Project, supported the progress of this work. We also thank the support from the Core Facility Center of NCKU for the TEM measurements and Mr. Kun-Hsu Lee in Instrument Center of NCKU for GIXRD measurements.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/9
Y1 - 2023/9
N2 - Nanocomposites consisting of a cerium-based metal–organic framework (Ce-MOF-808) and a conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), are synthesized by performing the pulse electrodeposition of PEDOT within the Ce-MOF-808 thin films. Ratios between MOF and PEDOT in the composites are tunable by simply adjusting the charge density used for electropolymerization, and the crystallinity, morphology, and elemental distributions of the resulting nanocomposites are characterized. Electrochemical behaviors and capacitive performances of the pristine MOF, pristine PEDOT thin films, and composite thin films are investigated with the use of the neutral sodium sulfate aqueous electrolytes. The reversible electrochemical reactivity of the highly porous Ce-MOF-808 provides a pseudocapacitance, and the electronically conducting PEDOT can not only offer a remarkable double-layer capacitance but also facilitate the electronic conduction between the redox-active cerium sites present in the MOF. As a result, the composite can outperform both the pristine MOF and pristine electrodeposited PEDOT as the active materials for supercapacitors. Findings here suggest that the highly porous and redox-active cerium-based MOF thin films are capable to enhance the capacitive performances of the electrodeposited PEDOT thin films.
AB - Nanocomposites consisting of a cerium-based metal–organic framework (Ce-MOF-808) and a conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), are synthesized by performing the pulse electrodeposition of PEDOT within the Ce-MOF-808 thin films. Ratios between MOF and PEDOT in the composites are tunable by simply adjusting the charge density used for electropolymerization, and the crystallinity, morphology, and elemental distributions of the resulting nanocomposites are characterized. Electrochemical behaviors and capacitive performances of the pristine MOF, pristine PEDOT thin films, and composite thin films are investigated with the use of the neutral sodium sulfate aqueous electrolytes. The reversible electrochemical reactivity of the highly porous Ce-MOF-808 provides a pseudocapacitance, and the electronically conducting PEDOT can not only offer a remarkable double-layer capacitance but also facilitate the electronic conduction between the redox-active cerium sites present in the MOF. As a result, the composite can outperform both the pristine MOF and pristine electrodeposited PEDOT as the active materials for supercapacitors. Findings here suggest that the highly porous and redox-active cerium-based MOF thin films are capable to enhance the capacitive performances of the electrodeposited PEDOT thin films.
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U2 - 10.1016/j.mtsust.2023.100449
DO - 10.1016/j.mtsust.2023.100449
M3 - Article
AN - SCOPUS:85166965266
SN - 2589-2347
VL - 23
JO - Materials Today Sustainability
JF - Materials Today Sustainability
M1 - 100449
ER -
