Proton conducting organic-inorganic nanocomposite membranes from MPTS and GPTS

Yong Il Park, Jooho Moon, Hye Kyung Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Novel fast proton-conducting organic-inorganic nanocomposite membranes were successfully fabricated. The polymer matrix obtained through proper oxidation of thiol ligands in (3-mercaptopropyl)trimethoxysilane (MPTS) and hydrolysis/condensation reaction of (3-glycidoxypropyl)trimethoxysilane (GPTS) showed relatively high proton conductivity over 10-2 S/cm at 25°C. The proton conductivities of the fabricated composite membranes increased up to 3.6 7times; 10-1 S/cm by increasing temperature and relative humidity to 70°C and 100% relative humidity. The high proton conductivity of the composites is due to the proton conducting path through the GPTS-derived pseudo-polyethylene oxide network in which sulfonic acid ligand work as proton donor.

Original languageEnglish
Pages (from-to)A191-A194
JournalElectrochemical and Solid-State Letters
Volume8
Issue number4
DOIs
Publication statusPublished - 2005 May 17

Fingerprint

Proton conductivity
Protons
Nanocomposites
nanocomposites
membranes
Membranes
conduction
protons
Atmospheric humidity
Ligands
Condensation reactions
Sulfonic Acids
Composite membranes
Polyethylene oxides
Polymer matrix
Sulfhydryl Compounds
conductivity
humidity
Hydrolysis
Oxidation

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

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abstract = "Novel fast proton-conducting organic-inorganic nanocomposite membranes were successfully fabricated. The polymer matrix obtained through proper oxidation of thiol ligands in (3-mercaptopropyl)trimethoxysilane (MPTS) and hydrolysis/condensation reaction of (3-glycidoxypropyl)trimethoxysilane (GPTS) showed relatively high proton conductivity over 10-2 S/cm at 25°C. The proton conductivities of the fabricated composite membranes increased up to 3.6 7times; 10-1 S/cm by increasing temperature and relative humidity to 70°C and 100{\%} relative humidity. The high proton conductivity of the composites is due to the proton conducting path through the GPTS-derived pseudo-polyethylene oxide network in which sulfonic acid ligand work as proton donor.",
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Proton conducting organic-inorganic nanocomposite membranes from MPTS and GPTS. / Park, Yong Il; Moon, Jooho; Kim, Hye Kyung.

In: Electrochemical and Solid-State Letters, Vol. 8, No. 4, 17.05.2005, p. A191-A194.

Research output: Contribution to journalArticle

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