Methanol barriers derived from layer-by-layer assembly of poly(ethersulfone)s for high performance direct methanol fuel cells

Junglim Ok; Wook Kim Dong; Changjin Lee; Choon Choi Won; Sungmin Cho; Yongku Kang

doi:10.5012/bkcs.2008.29.4.842

Methanol barriers derived from layer-by-layer assembly of poly(ethersulfone)s for high performance direct methanol fuel cells

Junglim Ok
, Wook Kim Dong
, Changjin Lee
, Choon Choi Won
, Sungmin Cho
, Yongku Kang

Department of Chemical Engineering

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

8 Scopus citations

Abstract

Layer-by-layer assembled multilayers of poly(ethersulfone)s were deposited on the surface of Nafion membrane for the application of direct methanol fuel cells (DMFC). Aminated poly(ethersulfone) (APES) and sulfonated poly(ethersulfone) (SPES) were used as a polycation and a polyanion for fabrication of the multilayer films. UV/Vis absorption spectroscopy verified a linear build-up of the multilayers of APES and SPES on the surface of Nafion. Thin multilayer films deposited on the Nafion membrane enabled methanol permeability of the membrane to decrease by 78% in comparison with the pristine Nafion. The performance of DMFCs in concentrated methanol was highly enhanced by using the multilayer modified Nafion.

Original language	English
Pages (from-to)	842-846
Number of pages	5
Journal	Bulletin of the Korean Chemical Society
Volume	29
Issue number	4
DOIs	https://doi.org/10.5012/bkcs.2008.29.4.842
State	Published - 20 Apr 2008

Keywords

Direct methanol fuel cells
Layer-by-layer self-assembly
Methanol permeability
Nafion membrane
Poly(ethersulfone)

UN SDGs

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

Access to Document

10.5012/bkcs.2008.29.4.842

Cite this

@article{88b7e3ca83a34f95abadd27df7fee0a4,

title = "Methanol barriers derived from layer-by-layer assembly of poly(ethersulfone)s for high performance direct methanol fuel cells",

abstract = "Layer-by-layer assembled multilayers of poly(ethersulfone)s were deposited on the surface of Nafion membrane for the application of direct methanol fuel cells (DMFC). Aminated poly(ethersulfone) (APES) and sulfonated poly(ethersulfone) (SPES) were used as a polycation and a polyanion for fabrication of the multilayer films. UV/Vis absorption spectroscopy verified a linear build-up of the multilayers of APES and SPES on the surface of Nafion. Thin multilayer films deposited on the Nafion membrane enabled methanol permeability of the membrane to decrease by 78\% in comparison with the pristine Nafion. The performance of DMFCs in concentrated methanol was highly enhanced by using the multilayer modified Nafion.",

keywords = "Direct methanol fuel cells, Layer-by-layer self-assembly, Methanol permeability, Nafion membrane, Poly(ethersulfone)",

author = "Junglim Ok and Dong, \{Wook Kim\} and Changjin Lee and Won, \{Choon Choi\} and Sungmin Cho and Yongku Kang",

year = "2008",

month = apr,

day = "20",

doi = "10.5012/bkcs.2008.29.4.842",

language = "English",

volume = "29",

pages = "842--846",

journal = "Bulletin of the Korean Chemical Society",

issn = "0253-2964",

publisher = "Wiley-Blackwell",

number = "4",

}

TY - JOUR

T1 - Methanol barriers derived from layer-by-layer assembly of poly(ethersulfone)s for high performance direct methanol fuel cells

AU - Ok, Junglim

AU - Dong, Wook Kim

AU - Lee, Changjin

AU - Won, Choon Choi

AU - Cho, Sungmin

AU - Kang, Yongku

PY - 2008/4/20

Y1 - 2008/4/20

N2 - Layer-by-layer assembled multilayers of poly(ethersulfone)s were deposited on the surface of Nafion membrane for the application of direct methanol fuel cells (DMFC). Aminated poly(ethersulfone) (APES) and sulfonated poly(ethersulfone) (SPES) were used as a polycation and a polyanion for fabrication of the multilayer films. UV/Vis absorption spectroscopy verified a linear build-up of the multilayers of APES and SPES on the surface of Nafion. Thin multilayer films deposited on the Nafion membrane enabled methanol permeability of the membrane to decrease by 78% in comparison with the pristine Nafion. The performance of DMFCs in concentrated methanol was highly enhanced by using the multilayer modified Nafion.

AB - Layer-by-layer assembled multilayers of poly(ethersulfone)s were deposited on the surface of Nafion membrane for the application of direct methanol fuel cells (DMFC). Aminated poly(ethersulfone) (APES) and sulfonated poly(ethersulfone) (SPES) were used as a polycation and a polyanion for fabrication of the multilayer films. UV/Vis absorption spectroscopy verified a linear build-up of the multilayers of APES and SPES on the surface of Nafion. Thin multilayer films deposited on the Nafion membrane enabled methanol permeability of the membrane to decrease by 78% in comparison with the pristine Nafion. The performance of DMFCs in concentrated methanol was highly enhanced by using the multilayer modified Nafion.

KW - Direct methanol fuel cells

KW - Layer-by-layer self-assembly

KW - Methanol permeability

KW - Nafion membrane

KW - Poly(ethersulfone)

UR - https://www.scopus.com/pages/publications/44149110606

U2 - 10.5012/bkcs.2008.29.4.842

DO - 10.5012/bkcs.2008.29.4.842

M3 - Article

AN - SCOPUS:44149110606

SN - 0253-2964

VL - 29

SP - 842

EP - 846

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

IS - 4

ER -

Methanol barriers derived from layer-by-layer assembly of poly(ethersulfone)s for high performance direct methanol fuel cells

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this