Imidazole and 1-methyl imidazole in phosphoric acid doped polybenzimidazole, electrolyte for fuel cells

Alex Schechter; Robert F. Savinell

doi:10.1016/S0167-2738(02)00040-1

Imidazole and 1-methyl imidazole in phosphoric acid doped polybenzimidazole, electrolyte for fuel cells

Alex Schechter, Robert F. Savinell

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

209 Scopus citations

Abstract

Imidazole and 1-methyl imidazole (Me-Im) were used as additives in polybenzimidazole (PBI) equilibrated with phosphoric acid (PA), a system shown to be a high-temperature proton-conducting polymer electrolyte. The influence of different concentrations of this additive on the conductivity of these membranes was measured by a four-probe conductivity measurement, at temperatures in the range of 80-200 °C, under various humidity conditions. Correlation was found between the conductivity of liquid solutions of concentrated phosphoric acid and that of H₃PO₄ in the PBI membranes.

Original language	English
Pages (from-to)	181-187
Number of pages	7
Journal	Solid State Ionics
Volume	147
Issue number	1-2
DOIs	https://doi.org/10.1016/S0167-2738(02)00040-1
State	Published - 1 Mar 2002
Externally published	Yes

Keywords

Conductivity
Fuel cell (FC)
Imidazole (Im)
Phosphoric acid (PA)
Polybenzimidazole (PBI)

Access to Document

10.1016/S0167-2738(02)00040-1

Cite this

@article{d30688c7bf3f4b5abb3cc2aee8a0f50f,

title = "Imidazole and 1-methyl imidazole in phosphoric acid doped polybenzimidazole, electrolyte for fuel cells",

abstract = "Imidazole and 1-methyl imidazole (Me-Im) were used as additives in polybenzimidazole (PBI) equilibrated with phosphoric acid (PA), a system shown to be a high-temperature proton-conducting polymer electrolyte. The influence of different concentrations of this additive on the conductivity of these membranes was measured by a four-probe conductivity measurement, at temperatures in the range of 80-200 °C, under various humidity conditions. Correlation was found between the conductivity of liquid solutions of concentrated phosphoric acid and that of H3PO4 in the PBI membranes.",

keywords = "Conductivity, Fuel cell (FC), Imidazole (Im), Phosphoric acid (PA), Polybenzimidazole (PBI)",

author = "Alex Schechter and Savinell, {Robert F.}",

year = "2002",

month = mar,

day = "1",

doi = "10.1016/S0167-2738(02)00040-1",

language = "אנגלית",

volume = "147",

pages = "181--187",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Imidazole and 1-methyl imidazole in phosphoric acid doped polybenzimidazole, electrolyte for fuel cells

AU - Schechter, Alex

AU - Savinell, Robert F.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - Imidazole and 1-methyl imidazole (Me-Im) were used as additives in polybenzimidazole (PBI) equilibrated with phosphoric acid (PA), a system shown to be a high-temperature proton-conducting polymer electrolyte. The influence of different concentrations of this additive on the conductivity of these membranes was measured by a four-probe conductivity measurement, at temperatures in the range of 80-200 °C, under various humidity conditions. Correlation was found between the conductivity of liquid solutions of concentrated phosphoric acid and that of H3PO4 in the PBI membranes.

AB - Imidazole and 1-methyl imidazole (Me-Im) were used as additives in polybenzimidazole (PBI) equilibrated with phosphoric acid (PA), a system shown to be a high-temperature proton-conducting polymer electrolyte. The influence of different concentrations of this additive on the conductivity of these membranes was measured by a four-probe conductivity measurement, at temperatures in the range of 80-200 °C, under various humidity conditions. Correlation was found between the conductivity of liquid solutions of concentrated phosphoric acid and that of H3PO4 in the PBI membranes.

KW - Conductivity

KW - Fuel cell (FC)

KW - Imidazole (Im)

KW - Phosphoric acid (PA)

KW - Polybenzimidazole (PBI)

UR - http://www.scopus.com/inward/record.url?scp=0036499614&partnerID=8YFLogxK

U2 - 10.1016/S0167-2738(02)00040-1

DO - 10.1016/S0167-2738(02)00040-1

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0036499614

SN - 0167-2738

VL - 147

SP - 181

EP - 187

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-2

ER -

Imidazole and 1-methyl imidazole in phosphoric acid doped polybenzimidazole, electrolyte for fuel cells

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this