Poly(ether imide) nanofibrous web composite membrane with SiO 2 /heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells

Chanmin Lee, Heesoo Na, Yukwon Jeon, Ho Jung Hwang, Hyun Jong Kim, Isao Mochida, Seong Ho Yoon, Joo Il Park, Yong-Gun Shul

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Poly(ether imide) (PEI) membranes for polymer electrolyte membrane fuel cells (PEMFCs) are prepared by the electrospinning method. This approach produces a membrane with a high porosity and surface area that is suitable for accommodating proton-conducting materials. A composite membrane was prepared by impregnating the pores of the electrospun PEI membrane with Aquivion ionomer. Then, an inorganic proton conductor in the form of SiO 2 /heteropolyacid (HPA) nanoparticles was prepared by a microemulsion process and the particles added to the Aquivion ionomer. The membranes were characterized by field emission scanning electron microscopy (FE-SEM) and single-cell performance testing for PEMFC. The durability of the composite membrane was assessed via accelerated lifetime and on/off tests. The ionomer-impregnated electrospun PEI membrane showed good thermal stability, satisfactory mechanical properties, and high proton conductivity. The addition of the SiO 2 /HPA nanoparticles improved the proton conductivity of the composite membrane, thereby allowing the operating temperature in low humidity environments to be extended. The composite membrane exhibited promising properties for application in high-temperature PEMFCs.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
Volume74
DOIs
Publication statusPublished - 2019 Jun 25

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Imides
Ionomers
Composite membranes
Proton exchange membrane fuel cells (PEMFC)
Ether
Ethers
Polyetherimides
Membranes
Proton conductivity
Protons
Temperature
Nanoparticles
Microemulsions
Electrospinning
Field emission
Atmospheric humidity
Durability
Thermodynamic stability
Porosity
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

Cite this

Lee, Chanmin ; Na, Heesoo ; Jeon, Yukwon ; Jung Hwang, Ho ; Kim, Hyun Jong ; Mochida, Isao ; Yoon, Seong Ho ; Park, Joo Il ; Shul, Yong-Gun. / Poly(ether imide) nanofibrous web composite membrane with SiO 2 /heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells In: Journal of Industrial and Engineering Chemistry. 2019 ; Vol. 74. pp. 7-13.
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abstract = "Poly(ether imide) (PEI) membranes for polymer electrolyte membrane fuel cells (PEMFCs) are prepared by the electrospinning method. This approach produces a membrane with a high porosity and surface area that is suitable for accommodating proton-conducting materials. A composite membrane was prepared by impregnating the pores of the electrospun PEI membrane with Aquivion ionomer. Then, an inorganic proton conductor in the form of SiO 2 /heteropolyacid (HPA) nanoparticles was prepared by a microemulsion process and the particles added to the Aquivion ionomer. The membranes were characterized by field emission scanning electron microscopy (FE-SEM) and single-cell performance testing for PEMFC. The durability of the composite membrane was assessed via accelerated lifetime and on/off tests. The ionomer-impregnated electrospun PEI membrane showed good thermal stability, satisfactory mechanical properties, and high proton conductivity. The addition of the SiO 2 /HPA nanoparticles improved the proton conductivity of the composite membrane, thereby allowing the operating temperature in low humidity environments to be extended. The composite membrane exhibited promising properties for application in high-temperature PEMFCs.",
author = "Chanmin Lee and Heesoo Na and Yukwon Jeon and {Jung Hwang}, Ho and Kim, {Hyun Jong} and Isao Mochida and Yoon, {Seong Ho} and Park, {Joo Il} and Yong-Gun Shul",
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Poly(ether imide) nanofibrous web composite membrane with SiO 2 /heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells . / Lee, Chanmin; Na, Heesoo; Jeon, Yukwon; Jung Hwang, Ho; Kim, Hyun Jong; Mochida, Isao; Yoon, Seong Ho; Park, Joo Il; Shul, Yong-Gun.

In: Journal of Industrial and Engineering Chemistry, Vol. 74, 25.06.2019, p. 7-13.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Poly(ether imide) nanofibrous web composite membrane with SiO 2 /heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells

AU - Lee, Chanmin

AU - Na, Heesoo

AU - Jeon, Yukwon

AU - Jung Hwang, Ho

AU - Kim, Hyun Jong

AU - Mochida, Isao

AU - Yoon, Seong Ho

AU - Park, Joo Il

AU - Shul, Yong-Gun

PY - 2019/6/25

Y1 - 2019/6/25

N2 - Poly(ether imide) (PEI) membranes for polymer electrolyte membrane fuel cells (PEMFCs) are prepared by the electrospinning method. This approach produces a membrane with a high porosity and surface area that is suitable for accommodating proton-conducting materials. A composite membrane was prepared by impregnating the pores of the electrospun PEI membrane with Aquivion ionomer. Then, an inorganic proton conductor in the form of SiO 2 /heteropolyacid (HPA) nanoparticles was prepared by a microemulsion process and the particles added to the Aquivion ionomer. The membranes were characterized by field emission scanning electron microscopy (FE-SEM) and single-cell performance testing for PEMFC. The durability of the composite membrane was assessed via accelerated lifetime and on/off tests. The ionomer-impregnated electrospun PEI membrane showed good thermal stability, satisfactory mechanical properties, and high proton conductivity. The addition of the SiO 2 /HPA nanoparticles improved the proton conductivity of the composite membrane, thereby allowing the operating temperature in low humidity environments to be extended. The composite membrane exhibited promising properties for application in high-temperature PEMFCs.

AB - Poly(ether imide) (PEI) membranes for polymer electrolyte membrane fuel cells (PEMFCs) are prepared by the electrospinning method. This approach produces a membrane with a high porosity and surface area that is suitable for accommodating proton-conducting materials. A composite membrane was prepared by impregnating the pores of the electrospun PEI membrane with Aquivion ionomer. Then, an inorganic proton conductor in the form of SiO 2 /heteropolyacid (HPA) nanoparticles was prepared by a microemulsion process and the particles added to the Aquivion ionomer. The membranes were characterized by field emission scanning electron microscopy (FE-SEM) and single-cell performance testing for PEMFC. The durability of the composite membrane was assessed via accelerated lifetime and on/off tests. The ionomer-impregnated electrospun PEI membrane showed good thermal stability, satisfactory mechanical properties, and high proton conductivity. The addition of the SiO 2 /HPA nanoparticles improved the proton conductivity of the composite membrane, thereby allowing the operating temperature in low humidity environments to be extended. The composite membrane exhibited promising properties for application in high-temperature PEMFCs.

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