Complex-plane impedance study on a hydrogen-doped copper coordination polymer: N,N′-bis-(2-hydroxyethyl)dithiooxamidato-copper(II)

Yuki Nagao, Ryuichi Ikeda, Seiichi Kanda, Yoshihiro Kubozono, Hiroshi Kitagawa

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

AC conductivity measurements with an impedance analyzer were carried out for a hydrogen-doped coordination polymer, N,N'-bis-(2-hydroxyethyl) dithiooxamidatocopper(II), in order to estimate the protonic conductivity (σp). The log σp was linearly increased from 2.6 χ 10-9 to 2.2 χ 10-6 S cm-1 with relative humidity (RH) from 45 to 100 % at 300 K. A slight hysteresis of protonic conductivity was observed upon increasing and decreasing RH, which implies that H3O+ is generated by a reaction between water molecule and acid-base polymer near RH - 100%.

Original languageEnglish
Pages (from-to)89-94
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume379
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

coordination polymers
humidity
Copper
Hydrogen
Atmospheric humidity
Polymers
impedance
copper
conductivity
hydrogen
Hysteresis
analyzers
alternating current
hysteresis
acids
Molecules
Acids
Water
polymers
estimates

Keywords

  • Ac conductivity measurement
  • Coordination polymer
  • Electronic conduction
  • Hydrogen doping
  • Inorganic-organic hybrids
  • Protonic conduction

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Complex-plane impedance study on a hydrogen-doped copper coordination polymer: N,N′-bis-(2-hydroxyethyl)dithiooxamidato-copper(II)",
abstract = "AC conductivity measurements with an impedance analyzer were carried out for a hydrogen-doped coordination polymer, N,N'-bis-(2-hydroxyethyl) dithiooxamidatocopper(II), in order to estimate the protonic conductivity (σp). The log σp was linearly increased from 2.6 χ 10-9 to 2.2 χ 10-6 S cm-1 with relative humidity (RH) from 45 to 100 {\%} at 300 K. A slight hysteresis of protonic conductivity was observed upon increasing and decreasing RH, which implies that H3O+ is generated by a reaction between water molecule and acid-base polymer near RH - 100{\%}.",
keywords = "Ac conductivity measurement, Coordination polymer, Electronic conduction, Hydrogen doping, Inorganic-organic hybrids, Protonic conduction",
author = "Yuki Nagao and Ryuichi Ikeda and Seiichi Kanda and Yoshihiro Kubozono and Hiroshi Kitagawa",
year = "2002",
language = "English",
volume = "379",
pages = "89--94",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
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T1 - Complex-plane impedance study on a hydrogen-doped copper coordination polymer

T2 - N,N′-bis-(2-hydroxyethyl)dithiooxamidato-copper(II)

AU - Nagao, Yuki

AU - Ikeda, Ryuichi

AU - Kanda, Seiichi

AU - Kubozono, Yoshihiro

AU - Kitagawa, Hiroshi

PY - 2002

Y1 - 2002

N2 - AC conductivity measurements with an impedance analyzer were carried out for a hydrogen-doped coordination polymer, N,N'-bis-(2-hydroxyethyl) dithiooxamidatocopper(II), in order to estimate the protonic conductivity (σp). The log σp was linearly increased from 2.6 χ 10-9 to 2.2 χ 10-6 S cm-1 with relative humidity (RH) from 45 to 100 % at 300 K. A slight hysteresis of protonic conductivity was observed upon increasing and decreasing RH, which implies that H3O+ is generated by a reaction between water molecule and acid-base polymer near RH - 100%.

AB - AC conductivity measurements with an impedance analyzer were carried out for a hydrogen-doped coordination polymer, N,N'-bis-(2-hydroxyethyl) dithiooxamidatocopper(II), in order to estimate the protonic conductivity (σp). The log σp was linearly increased from 2.6 χ 10-9 to 2.2 χ 10-6 S cm-1 with relative humidity (RH) from 45 to 100 % at 300 K. A slight hysteresis of protonic conductivity was observed upon increasing and decreasing RH, which implies that H3O+ is generated by a reaction between water molecule and acid-base polymer near RH - 100%.

KW - Ac conductivity measurement

KW - Coordination polymer

KW - Electronic conduction

KW - Hydrogen doping

KW - Inorganic-organic hybrids

KW - Protonic conduction

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