The physicochemical properties of polyindole / thiol composites

K. S. Ryu; N. G. Park; K. M. Kim; Y. G. Lee; Y. J. Park; S. J. Lee; C. K. Jeong; J. Joo; S. H. Chang

doi:10.1016/S0379-6779(02)00648-3

The physicochemical properties of polyindole / thiol composites

K. S. Ryu, N. G. Park, K. M. Kim, Y. G. Lee, Y. J. Park, S. J. Lee, C. K. Jeong, J. Joo, S. H. Chang

Department of Physics

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4- thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as ∼75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the σ_dc of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.

Original language	English
Pages (from-to)	397-398
Number of pages	2
Journal	Synthetic Metals
Volume	135-136
DOIs	https://doi.org/10.1016/S0379-6779(02)00648-3
Publication status	Published - 2003 Apr 4

Keywords

2,5-dimercapto-1,3,4-thiadiazole
Cathode
Composite
Lithium secondary battery
Polyindole
Polymer electrode

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0379-6779(02)00648-3

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title = "The physicochemical properties of polyindole / thiol composites",

abstract = "We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4- thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as ∼75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the σdc of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.",

keywords = "2,5-dimercapto-1,3,4-thiadiazole, Cathode, Composite, Lithium secondary battery, Polyindole, Polymer electrode",

author = "Ryu, {K. S.} and Park, {N. G.} and Kim, {K. M.} and Lee, {Y. G.} and Park, {Y. J.} and Lee, {S. J.} and Jeong, {C. K.} and J. Joo and Chang, {S. H.}",

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doi = "10.1016/S0379-6779(02)00648-3",

language = "English",

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T1 - The physicochemical properties of polyindole / thiol composites

AU - Ryu, K. S.

AU - Park, N. G.

AU - Kim, K. M.

AU - Lee, Y. G.

AU - Park, Y. J.

AU - Lee, S. J.

AU - Jeong, C. K.

AU - Joo, J.

AU - Chang, S. H.

PY - 2003/4/4

Y1 - 2003/4/4

N2 - We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4- thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as ∼75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the σdc of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.

AB - We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4- thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as ∼75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the σdc of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.

KW - 2,5-dimercapto-1,3,4-thiadiazole

KW - Cathode

KW - Composite

KW - Lithium secondary battery

KW - Polyindole

KW - Polymer electrode

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DO - 10.1016/S0379-6779(02)00648-3

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AN - SCOPUS:23044480499

SN - 0379-6779

VL - 135-136

SP - 397

EP - 398

JO - Synthetic Metals

JF - Synthetic Metals

ER -

The physicochemical properties of polyindole / thiol composites

Abstract

Keywords

ASJC Scopus subject areas

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