Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells

Byeong Hun Oh; Ae Rhan Kim; Dong Jin Yoo

doi:10.1016/j.ijhydene.2018.12.177

Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells

Byeong Hun Oh
, Ae Rhan Kim
, Dong Jin Yoo^*

^*Corresponding author for this work

Department of Biological Sciences

Jeonbuk National University

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

77 Scopus citations

Abstract

We designed and synthesized a poly(ether imide) (PEI) membrane that has good chemical and mechanical stabilities. Alkalized PEI (A-PEI) membrane was fabricated by solution casting of chloromethylated PEI (CM-PEI) followed by quaternization and alkalization. The chemical structure of the synthesized polymers was verified by proton nuclear magnetic resonance (¹H NMR) and Fourier-transform infrared spectroscopy (FT-IR). Physiochemical properties of the membrane such as ion exchange capacity, water uptake, and swelling ratio were investigated. The membranes with a high degree of chloromethylation (DC) exhibited elevated hydroxide ion conductivity in range of 6.7–44.2 mS/cm at 90 °C under 100% relative humidity (RH). The hydrophilic-hydrophobic phase separation was verified by atomic force microscope (AFM) and small angle X-ray scattering (SAXS) measurements. Chemical stability was evaluated by measuring the durability of membranes while they were soaked in oxidative and alkaline solutions at 60 °C for 200 h.

Original language	English
Pages (from-to)	4281-4292
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	44
Issue number	8
DOIs	https://doi.org/10.1016/j.ijhydene.2018.12.177
State	Published - 2019.02.8

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anion exchange membrane
Chemical stability
Chloromethylation
Hydroxide ion conductivity
Poly(ether imide)

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum
Physics & Astronomy

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10.1016/j.ijhydene.2018.12.177

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@article{b402fd4245db4568b0d516b753303953,

title = "Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells",

abstract = "We designed and synthesized a poly(ether imide) (PEI) membrane that has good chemical and mechanical stabilities. Alkalized PEI (A-PEI) membrane was fabricated by solution casting of chloromethylated PEI (CM-PEI) followed by quaternization and alkalization. The chemical structure of the synthesized polymers was verified by proton nuclear magnetic resonance (1H NMR) and Fourier-transform infrared spectroscopy (FT-IR). Physiochemical properties of the membrane such as ion exchange capacity, water uptake, and swelling ratio were investigated. The membranes with a high degree of chloromethylation (DC) exhibited elevated hydroxide ion conductivity in range of 6.7–44.2 mS/cm at 90 °C under 100\% relative humidity (RH). The hydrophilic-hydrophobic phase separation was verified by atomic force microscope (AFM) and small angle X-ray scattering (SAXS) measurements. Chemical stability was evaluated by measuring the durability of membranes while they were soaked in oxidative and alkaline solutions at 60 °C for 200 h.",

keywords = "Anion exchange membrane, Chemical stability, Chloromethylation, Hydroxide ion conductivity, Poly(ether imide)",

author = "Oh, \{Byeong Hun\} and Kim, \{Ae Rhan\} and Yoo, \{Dong Jin\}",

note = "Publisher Copyright: {\textcopyright} 2018 Hydrogen Energy Publications LLC",

year = "2019",

month = feb,

day = "8",

doi = "10.1016/j.ijhydene.2018.12.177",

language = "English",

volume = "44",

pages = "4281--4292",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

number = "8",

}

Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells. / Oh, Byeong Hun; Kim, Ae Rhan; Yoo, Dong Jin.
In: International Journal of Hydrogen Energy, Vol. 44, No. 8, 08.02.2019, p. 4281-4292.

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

TY - JOUR

T1 - Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells

AU - Oh, Byeong Hun

AU - Kim, Ae Rhan

AU - Yoo, Dong Jin

PY - 2019/2/8

Y1 - 2019/2/8

N2 - We designed and synthesized a poly(ether imide) (PEI) membrane that has good chemical and mechanical stabilities. Alkalized PEI (A-PEI) membrane was fabricated by solution casting of chloromethylated PEI (CM-PEI) followed by quaternization and alkalization. The chemical structure of the synthesized polymers was verified by proton nuclear magnetic resonance (1H NMR) and Fourier-transform infrared spectroscopy (FT-IR). Physiochemical properties of the membrane such as ion exchange capacity, water uptake, and swelling ratio were investigated. The membranes with a high degree of chloromethylation (DC) exhibited elevated hydroxide ion conductivity in range of 6.7–44.2 mS/cm at 90 °C under 100% relative humidity (RH). The hydrophilic-hydrophobic phase separation was verified by atomic force microscope (AFM) and small angle X-ray scattering (SAXS) measurements. Chemical stability was evaluated by measuring the durability of membranes while they were soaked in oxidative and alkaline solutions at 60 °C for 200 h.

AB - We designed and synthesized a poly(ether imide) (PEI) membrane that has good chemical and mechanical stabilities. Alkalized PEI (A-PEI) membrane was fabricated by solution casting of chloromethylated PEI (CM-PEI) followed by quaternization and alkalization. The chemical structure of the synthesized polymers was verified by proton nuclear magnetic resonance (1H NMR) and Fourier-transform infrared spectroscopy (FT-IR). Physiochemical properties of the membrane such as ion exchange capacity, water uptake, and swelling ratio were investigated. The membranes with a high degree of chloromethylation (DC) exhibited elevated hydroxide ion conductivity in range of 6.7–44.2 mS/cm at 90 °C under 100% relative humidity (RH). The hydrophilic-hydrophobic phase separation was verified by atomic force microscope (AFM) and small angle X-ray scattering (SAXS) measurements. Chemical stability was evaluated by measuring the durability of membranes while they were soaked in oxidative and alkaline solutions at 60 °C for 200 h.

KW - Anion exchange membrane

KW - Chemical stability

KW - Chloromethylation

KW - Hydroxide ion conductivity

KW - Poly(ether imide)

UR - https://www.scopus.com/pages/publications/85059856460

U2 - 10.1016/j.ijhydene.2018.12.177

DO - 10.1016/j.ijhydene.2018.12.177

M3 - Journal article

AN - SCOPUS:85059856460

SN - 0360-3199

VL - 44

SP - 4281

EP - 4292

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 8

ER -

Profile of extended chemical stability and mechanical integrity and high hydroxide ion conductivity of poly(ether imide) based membranes for anion exchange membrane fuel cells

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

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