Structural and transport properties of porous PVdF-HFP electrolyte membranes modified with an inorganic filler

G. Gnana Kumar; Dae Nyung Lee; Ae Rhan Kim; Pil Kim; Kee Suk Nahm; R. Nimma Elizabeth

doi:10.1163/156855408786778375

Structural and transport properties of porous PVdF-HFP electrolyte membranes modified with an inorganic filler

G. Gnana Kumar
, Dae Nyung Lee
, Ae Rhan Kim
, Pil Kim
, Kee Suk Nahm
, R. Nimma Elizabeth

Division of Chemical Engineering

Research output: Contribution to journal › Journal article › peer-review

8 Scopus citations

Abstract

Novel porous poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) copolymer membranes were prepared with zinc chloride as an additive and silica as a ceramic filler. Porosity of the membranes was determined by Scanning Electron Microscopy (SEM). Inclusion of ceramic filler decreases the crystalline character of a polymer which facilitates the movement of ions leading to an increase in the conductivity. The infra-red spectroscopic and EDX measurements revealed the presence of acid moieties in the composite membranes. The thermal stability of these blend membranes lies above 400°C, which is sufficiently high for use in DMFC. The membranes prepared for this study exhibited the ionic conductivity in the range of 10^-3 to 10^-2 S/cm and the methanol permeabilities ranged between 10^-9 and 10^-7 cm²/s.

Original language	English
Pages (from-to)	731-746
Number of pages	16
Journal	Composite Interfaces
Volume	15
Issue number	7-9
DOIs	https://doi.org/10.1163/156855408786778375
State	Published - 2008

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Filler
Ionic conductivity
Membrane
Porosity

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

Access to Document

10.1163/156855408786778375

Cite this

@article{31ffb6929d274e9596b9a66f6744c2e6,

title = "Structural and transport properties of porous PVdF-HFP electrolyte membranes modified with an inorganic filler",

abstract = "Novel porous poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) copolymer membranes were prepared with zinc chloride as an additive and silica as a ceramic filler. Porosity of the membranes was determined by Scanning Electron Microscopy (SEM). Inclusion of ceramic filler decreases the crystalline character of a polymer which facilitates the movement of ions leading to an increase in the conductivity. The infra-red spectroscopic and EDX measurements revealed the presence of acid moieties in the composite membranes. The thermal stability of these blend membranes lies above 400°C, which is sufficiently high for use in DMFC. The membranes prepared for this study exhibited the ionic conductivity in the range of 10-3 to 10-2 S/cm and the methanol permeabilities ranged between 10-9 and 10-7 cm2/s.",

keywords = "Filler, Ionic conductivity, Membrane, Porosity",

author = "Kumar, \{G. Gnana\} and Lee, \{Dae Nyung\} and Kim, \{Ae Rhan\} and Pil Kim and Nahm, \{Kee Suk\} and Elizabeth, \{R. Nimma\}",

year = "2008",

doi = "10.1163/156855408786778375",

language = "English",

volume = "15",

pages = "731--746",

journal = "Composite Interfaces",

issn = "0927-6440",

number = "7-9",

}

TY - JOUR

T1 - Structural and transport properties of porous PVdF-HFP electrolyte membranes modified with an inorganic filler

AU - Kumar, G. Gnana

AU - Lee, Dae Nyung

AU - Kim, Ae Rhan

AU - Kim, Pil

AU - Nahm, Kee Suk

AU - Elizabeth, R. Nimma

PY - 2008

Y1 - 2008

N2 - Novel porous poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) copolymer membranes were prepared with zinc chloride as an additive and silica as a ceramic filler. Porosity of the membranes was determined by Scanning Electron Microscopy (SEM). Inclusion of ceramic filler decreases the crystalline character of a polymer which facilitates the movement of ions leading to an increase in the conductivity. The infra-red spectroscopic and EDX measurements revealed the presence of acid moieties in the composite membranes. The thermal stability of these blend membranes lies above 400°C, which is sufficiently high for use in DMFC. The membranes prepared for this study exhibited the ionic conductivity in the range of 10-3 to 10-2 S/cm and the methanol permeabilities ranged between 10-9 and 10-7 cm2/s.

AB - Novel porous poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) copolymer membranes were prepared with zinc chloride as an additive and silica as a ceramic filler. Porosity of the membranes was determined by Scanning Electron Microscopy (SEM). Inclusion of ceramic filler decreases the crystalline character of a polymer which facilitates the movement of ions leading to an increase in the conductivity. The infra-red spectroscopic and EDX measurements revealed the presence of acid moieties in the composite membranes. The thermal stability of these blend membranes lies above 400°C, which is sufficiently high for use in DMFC. The membranes prepared for this study exhibited the ionic conductivity in the range of 10-3 to 10-2 S/cm and the methanol permeabilities ranged between 10-9 and 10-7 cm2/s.

KW - Filler

KW - Ionic conductivity

KW - Membrane

KW - Porosity

UR - https://www.scopus.com/pages/publications/70349678379

U2 - 10.1163/156855408786778375

DO - 10.1163/156855408786778375

M3 - Journal article

AN - SCOPUS:70349678379

SN - 0927-6440

VL - 15

SP - 731

EP - 746

JO - Composite Interfaces

JF - Composite Interfaces

IS - 7-9

ER -

Structural and transport properties of porous PVdF-HFP electrolyte membranes modified with an inorganic filler

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

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