Copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline: Fabrication, characteristics, and electrochemical application for oxygen reduction reaction

Keumnam Cho, Chan Yong Shin, Yun Jin Leem, Myung Mo Sung, Jinho Chang, Sung-Hwan Han

Research output: Contribution to journalArticle

Abstract

In this work, we fabricated copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline (nano-Cu-BTCs/PANI) composites via a Layer-by-Layer (LbL) method. By increasing the number of LbL cycles, size and amount of the nano-Cu-BTCs in the composites were increased. The composite with more amounts of nano-Cu-BTCs exhibited larger surface areas and more increased electrical resistivity. The composites were investigated as electrocatalysts for oxygen reduction reaction (ORR) in 0.1 M KOH. Among the nano-Cu-BTCs(x wt%)/PANI (x = 8.2, 12, 20, and 37) composites, the composite with 12 wt% of Cu-BTC nanocrystals showed the best electrocatalytic activity for ORR, which would be mainly associated with destabilization of a OH2 intermediate, resulting in a further reduction reaction of the intermediate to OH in the alkaline solution.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalJournal of Electroanalytical Chemistry
Volume823
DOIs
StatePublished - 2018 Aug 15

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Polyaniline
Nanocrystals
Copper
Oxygen
Fabrication
Composite materials
Electrocatalysts
polyaniline
trimesic acid

Keywords

  • Electrocatalysis
  • Layer-by-layer deposition
  • Metal organic framework
  • Nanocrystal
  • Oxygen reduction reaction

Cite this

@article{6c215f65c52940f1b44da5301911124f,
title = "Copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline: Fabrication, characteristics, and electrochemical application for oxygen reduction reaction",
abstract = "In this work, we fabricated copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline (nano-Cu-BTCs/PANI) composites via a Layer-by-Layer (LbL) method. By increasing the number of LbL cycles, size and amount of the nano-Cu-BTCs in the composites were increased. The composite with more amounts of nano-Cu-BTCs exhibited larger surface areas and more increased electrical resistivity. The composites were investigated as electrocatalysts for oxygen reduction reaction (ORR) in 0.1 M KOH. Among the nano-Cu-BTCs(x wt{\%})/PANI (x = 8.2, 12, 20, and 37) composites, the composite with 12 wt{\%} of Cu-BTC nanocrystals showed the best electrocatalytic activity for ORR, which would be mainly associated with destabilization of a OH2 − intermediate, resulting in a further reduction reaction of the intermediate to OH− in the alkaline solution.",
keywords = "Electrocatalysis, Layer-by-layer deposition, Metal organic framework, Nanocrystal, Oxygen reduction reaction",
author = "Keumnam Cho and Shin, {Chan Yong} and Leem, {Yun Jin} and Sung, {Myung Mo} and Jinho Chang and Sung-Hwan Han",
year = "2018",
month = "8",
day = "15",
doi = "10.1016/j.jelechem.2018.06.006",
language = "English",
volume = "823",
pages = "176--183",
journal = "Journal of Electroanalytical Chemistry",
issn = "1572-6657",

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TY - JOUR

T1 - Copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline

T2 - Fabrication, characteristics, and electrochemical application for oxygen reduction reaction

AU - Cho, Keumnam

AU - Shin, Chan Yong

AU - Leem, Yun Jin

AU - Sung, Myung Mo

AU - Chang, Jinho

AU - Han, Sung-Hwan

PY - 2018/8/15

Y1 - 2018/8/15

N2 - In this work, we fabricated copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline (nano-Cu-BTCs/PANI) composites via a Layer-by-Layer (LbL) method. By increasing the number of LbL cycles, size and amount of the nano-Cu-BTCs in the composites were increased. The composite with more amounts of nano-Cu-BTCs exhibited larger surface areas and more increased electrical resistivity. The composites were investigated as electrocatalysts for oxygen reduction reaction (ORR) in 0.1 M KOH. Among the nano-Cu-BTCs(x wt%)/PANI (x = 8.2, 12, 20, and 37) composites, the composite with 12 wt% of Cu-BTC nanocrystals showed the best electrocatalytic activity for ORR, which would be mainly associated with destabilization of a OH2 − intermediate, resulting in a further reduction reaction of the intermediate to OH− in the alkaline solution.

AB - In this work, we fabricated copper-1, 3, 5-benzenetricarboxylate framework nanocrystals on polyaniline (nano-Cu-BTCs/PANI) composites via a Layer-by-Layer (LbL) method. By increasing the number of LbL cycles, size and amount of the nano-Cu-BTCs in the composites were increased. The composite with more amounts of nano-Cu-BTCs exhibited larger surface areas and more increased electrical resistivity. The composites were investigated as electrocatalysts for oxygen reduction reaction (ORR) in 0.1 M KOH. Among the nano-Cu-BTCs(x wt%)/PANI (x = 8.2, 12, 20, and 37) composites, the composite with 12 wt% of Cu-BTC nanocrystals showed the best electrocatalytic activity for ORR, which would be mainly associated with destabilization of a OH2 − intermediate, resulting in a further reduction reaction of the intermediate to OH− in the alkaline solution.

KW - Electrocatalysis

KW - Layer-by-layer deposition

KW - Metal organic framework

KW - Nanocrystal

KW - Oxygen reduction reaction

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U2 - 10.1016/j.jelechem.2018.06.006

DO - 10.1016/j.jelechem.2018.06.006

M3 - Article

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JO - Journal of Electroanalytical Chemistry

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