Semi-interpenetrating network based on cross-linked poly(vinyl alcohol) and poly(styrene sulfonic acid-co-maleic anhydride) as proton exchange fuel cell membranes

C. W. Lin, Y. F. Huang, Arunachala Mada Kannan

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

A series of promising proton conducting membranes have been synthesized by using poly(vinyl alcohol), with sulfosuccinic acid (SSA) as a cross-linking agent and poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) as proton source, which form a semi-interpenetrating network (semi-IPN) PVA/SSA/PSSA-MA membrane. A bridge of SSA between PVA molecules not only reinforces the network but also provides extra proton conducting paths. PSSA-MA chains trapped in the network were the major sources of protons in the membrane. FT-IR spectra confirmed the success of the cross-linking reaction and molecular interactions between PVA and PSSA-MA. Associated characteristics of a proton conducting membrane including ion-exchange capacity (IEC), proton conductivity and water uptake were investigated. The measured IECs of the membranes increased with increase of PSSA-MA content varying from 20 to 80% and correlated well with the measured uptake water and proton conductivity. The semi-IPN membranes with PSSA-MA over 60% exhibited a higher proton conductivity than Nafion-115 and also a reasonable level of water uptake. Fuel cell performance of membrane electrode assemblies (MEA) was evaluated at various temperatures with H2/air as well as H2/O2 gases under ambient pressure. A power density of 0.7 W cm-2 was obtained for the MEA using PVA/SSA20/PSSA-MA80 membrane using H2/O2 at 50 °C.

Original languageEnglish (US)
Pages (from-to)449-456
Number of pages8
JournalJournal of Power Sources
Volume164
Issue number2
DOIs
StatePublished - Feb 10 2007
Externally publishedYes

Fingerprint

Maleic Anhydrides
Interpenetrating polymer networks
Styrene
Sulfonic Acids
sulfonic acid
Maleic anhydride
Proton exchange membrane fuel cells (PEMFC)
anhydrides
fuel cells
polystyrene
alcohols
Alcohols
membranes
Membranes
acids
protons
Acids
Protons
Proton conductivity
Water

Keywords

  • Fuel cells
  • Membrane electrode assembly
  • Poly(styrene sulfonic acid-co-maleic acid)
  • Poly(vinyl alcohol)
  • Proton conducting membrane
  • Semi-interpenetrating network

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

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title = "Semi-interpenetrating network based on cross-linked poly(vinyl alcohol) and poly(styrene sulfonic acid-co-maleic anhydride) as proton exchange fuel cell membranes",
abstract = "A series of promising proton conducting membranes have been synthesized by using poly(vinyl alcohol), with sulfosuccinic acid (SSA) as a cross-linking agent and poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) as proton source, which form a semi-interpenetrating network (semi-IPN) PVA/SSA/PSSA-MA membrane. A bridge of SSA between PVA molecules not only reinforces the network but also provides extra proton conducting paths. PSSA-MA chains trapped in the network were the major sources of protons in the membrane. FT-IR spectra confirmed the success of the cross-linking reaction and molecular interactions between PVA and PSSA-MA. Associated characteristics of a proton conducting membrane including ion-exchange capacity (IEC), proton conductivity and water uptake were investigated. The measured IECs of the membranes increased with increase of PSSA-MA content varying from 20 to 80{\%} and correlated well with the measured uptake water and proton conductivity. The semi-IPN membranes with PSSA-MA over 60{\%} exhibited a higher proton conductivity than Nafion-115 and also a reasonable level of water uptake. Fuel cell performance of membrane electrode assemblies (MEA) was evaluated at various temperatures with H2/air as well as H2/O2 gases under ambient pressure. A power density of 0.7 W cm-2 was obtained for the MEA using PVA/SSA20/PSSA-MA80 membrane using H2/O2 at 50 °C.",
keywords = "Fuel cells, Membrane electrode assembly, Poly(styrene sulfonic acid-co-maleic acid), Poly(vinyl alcohol), Proton conducting membrane, Semi-interpenetrating network",
author = "Lin, {C. W.} and Huang, {Y. F.} and {Mada Kannan}, Arunachala",
year = "2007",
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T1 - Semi-interpenetrating network based on cross-linked poly(vinyl alcohol) and poly(styrene sulfonic acid-co-maleic anhydride) as proton exchange fuel cell membranes

AU - Lin, C. W.

AU - Huang, Y. F.

AU - Mada Kannan, Arunachala

PY - 2007/2/10

Y1 - 2007/2/10

N2 - A series of promising proton conducting membranes have been synthesized by using poly(vinyl alcohol), with sulfosuccinic acid (SSA) as a cross-linking agent and poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) as proton source, which form a semi-interpenetrating network (semi-IPN) PVA/SSA/PSSA-MA membrane. A bridge of SSA between PVA molecules not only reinforces the network but also provides extra proton conducting paths. PSSA-MA chains trapped in the network were the major sources of protons in the membrane. FT-IR spectra confirmed the success of the cross-linking reaction and molecular interactions between PVA and PSSA-MA. Associated characteristics of a proton conducting membrane including ion-exchange capacity (IEC), proton conductivity and water uptake were investigated. The measured IECs of the membranes increased with increase of PSSA-MA content varying from 20 to 80% and correlated well with the measured uptake water and proton conductivity. The semi-IPN membranes with PSSA-MA over 60% exhibited a higher proton conductivity than Nafion-115 and also a reasonable level of water uptake. Fuel cell performance of membrane electrode assemblies (MEA) was evaluated at various temperatures with H2/air as well as H2/O2 gases under ambient pressure. A power density of 0.7 W cm-2 was obtained for the MEA using PVA/SSA20/PSSA-MA80 membrane using H2/O2 at 50 °C.

AB - A series of promising proton conducting membranes have been synthesized by using poly(vinyl alcohol), with sulfosuccinic acid (SSA) as a cross-linking agent and poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) as proton source, which form a semi-interpenetrating network (semi-IPN) PVA/SSA/PSSA-MA membrane. A bridge of SSA between PVA molecules not only reinforces the network but also provides extra proton conducting paths. PSSA-MA chains trapped in the network were the major sources of protons in the membrane. FT-IR spectra confirmed the success of the cross-linking reaction and molecular interactions between PVA and PSSA-MA. Associated characteristics of a proton conducting membrane including ion-exchange capacity (IEC), proton conductivity and water uptake were investigated. The measured IECs of the membranes increased with increase of PSSA-MA content varying from 20 to 80% and correlated well with the measured uptake water and proton conductivity. The semi-IPN membranes with PSSA-MA over 60% exhibited a higher proton conductivity than Nafion-115 and also a reasonable level of water uptake. Fuel cell performance of membrane electrode assemblies (MEA) was evaluated at various temperatures with H2/air as well as H2/O2 gases under ambient pressure. A power density of 0.7 W cm-2 was obtained for the MEA using PVA/SSA20/PSSA-MA80 membrane using H2/O2 at 50 °C.

KW - Fuel cells

KW - Membrane electrode assembly

KW - Poly(styrene sulfonic acid-co-maleic acid)

KW - Poly(vinyl alcohol)

KW - Proton conducting membrane

KW - Semi-interpenetrating network

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U2 - 10.1016/j.jpowsour.2006.10.081

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