Effect of microporous layer on MacMullin number of carbon paper gas diffusion layer

Michael J. Martínez-Rodríguez, Tong Cui, Sirivatch Shimpalee, Supapan Seraphin, Binh Duong, J. W. Van Zee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The effect of the microporous layer (MPL) and wet proofing on the MacMullin number has been evaluated for a custom series of Toray TGP-H-060 carbon paper gas diffusion layer (GDL). Complementary characterizations for these GDLs were performed by using scanning electron microscopy (SEM) images, pore size distribution (PSD) and fuel cell performance. The GDLs were customized by the addition of a microporous layer (MPL) and the treatment of, either or both, the substrate and MPL with 10% and 40% hydrophobic agent. SEM images correlated very well with the data shown for PSD. Distinction between the substrate layer and the MPL were clearly shown as two different slopes in the integral distribution and two different peaks in the differential distribution. The MacMullin number increased with increase in wet proofing but decreased with the addition of the MPL. The MacMullin number is a key parameter that contains the missing information for the path length in GDLs, which is generally approximated with the Bruggeman expression. The results provided an overview for the interpretation of the combined effect of the substrate and MPL properties as well as the cell operating conditions.

Original languageEnglish (US)
Pages (from-to)91-100
Number of pages10
JournalJournal of Power Sources
Volume207
DOIs
StatePublished - Jun 1 2012

Fingerprint

gaseous diffusion
Diffusion in gases
Carbon
Pore size
carbon
Substrates
Scanning electron microscopy
Fuel cells
porosity
scanning electron microscopy
fuel cells
slopes
cells

Keywords

  • Effective diffusion
  • Fuel cells
  • Gas diffusion layer
  • MacMullin number
  • Pore size distribution

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

Effect of microporous layer on MacMullin number of carbon paper gas diffusion layer. / Martínez-Rodríguez, Michael J.; Cui, Tong; Shimpalee, Sirivatch; Seraphin, Supapan; Duong, Binh; Van Zee, J. W.

In: Journal of Power Sources, Vol. 207, 01.06.2012, p. 91-100.

Research output: Contribution to journalArticle

Martínez-Rodríguez, Michael J. ; Cui, Tong ; Shimpalee, Sirivatch ; Seraphin, Supapan ; Duong, Binh ; Van Zee, J. W. / Effect of microporous layer on MacMullin number of carbon paper gas diffusion layer. In: Journal of Power Sources. 2012 ; Vol. 207. pp. 91-100.
@article{4f84b88196ca4b99b111d86124b028cf,
title = "Effect of microporous layer on MacMullin number of carbon paper gas diffusion layer",
abstract = "The effect of the microporous layer (MPL) and wet proofing on the MacMullin number has been evaluated for a custom series of Toray TGP-H-060 carbon paper gas diffusion layer (GDL). Complementary characterizations for these GDLs were performed by using scanning electron microscopy (SEM) images, pore size distribution (PSD) and fuel cell performance. The GDLs were customized by the addition of a microporous layer (MPL) and the treatment of, either or both, the substrate and MPL with 10{\%} and 40{\%} hydrophobic agent. SEM images correlated very well with the data shown for PSD. Distinction between the substrate layer and the MPL were clearly shown as two different slopes in the integral distribution and two different peaks in the differential distribution. The MacMullin number increased with increase in wet proofing but decreased with the addition of the MPL. The MacMullin number is a key parameter that contains the missing information for the path length in GDLs, which is generally approximated with the Bruggeman expression. The results provided an overview for the interpretation of the combined effect of the substrate and MPL properties as well as the cell operating conditions.",
keywords = "Effective diffusion, Fuel cells, Gas diffusion layer, MacMullin number, Pore size distribution",
author = "Mart{\'i}nez-Rodr{\'i}guez, {Michael J.} and Tong Cui and Sirivatch Shimpalee and Supapan Seraphin and Binh Duong and {Van Zee}, {J. W.}",
year = "2012",
month = "6",
day = "1",
doi = "10.1016/j.jpowsour.2012.01.132",
language = "English (US)",
volume = "207",
pages = "91--100",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Effect of microporous layer on MacMullin number of carbon paper gas diffusion layer

AU - Martínez-Rodríguez, Michael J.

AU - Cui, Tong

AU - Shimpalee, Sirivatch

AU - Seraphin, Supapan

AU - Duong, Binh

AU - Van Zee, J. W.

PY - 2012/6/1

Y1 - 2012/6/1

N2 - The effect of the microporous layer (MPL) and wet proofing on the MacMullin number has been evaluated for a custom series of Toray TGP-H-060 carbon paper gas diffusion layer (GDL). Complementary characterizations for these GDLs were performed by using scanning electron microscopy (SEM) images, pore size distribution (PSD) and fuel cell performance. The GDLs were customized by the addition of a microporous layer (MPL) and the treatment of, either or both, the substrate and MPL with 10% and 40% hydrophobic agent. SEM images correlated very well with the data shown for PSD. Distinction between the substrate layer and the MPL were clearly shown as two different slopes in the integral distribution and two different peaks in the differential distribution. The MacMullin number increased with increase in wet proofing but decreased with the addition of the MPL. The MacMullin number is a key parameter that contains the missing information for the path length in GDLs, which is generally approximated with the Bruggeman expression. The results provided an overview for the interpretation of the combined effect of the substrate and MPL properties as well as the cell operating conditions.

AB - The effect of the microporous layer (MPL) and wet proofing on the MacMullin number has been evaluated for a custom series of Toray TGP-H-060 carbon paper gas diffusion layer (GDL). Complementary characterizations for these GDLs were performed by using scanning electron microscopy (SEM) images, pore size distribution (PSD) and fuel cell performance. The GDLs were customized by the addition of a microporous layer (MPL) and the treatment of, either or both, the substrate and MPL with 10% and 40% hydrophobic agent. SEM images correlated very well with the data shown for PSD. Distinction between the substrate layer and the MPL were clearly shown as two different slopes in the integral distribution and two different peaks in the differential distribution. The MacMullin number increased with increase in wet proofing but decreased with the addition of the MPL. The MacMullin number is a key parameter that contains the missing information for the path length in GDLs, which is generally approximated with the Bruggeman expression. The results provided an overview for the interpretation of the combined effect of the substrate and MPL properties as well as the cell operating conditions.

KW - Effective diffusion

KW - Fuel cells

KW - Gas diffusion layer

KW - MacMullin number

KW - Pore size distribution

UR - http://www.scopus.com/inward/record.url?scp=84858339316&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858339316&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2012.01.132

DO - 10.1016/j.jpowsour.2012.01.132

M3 - Article

AN - SCOPUS:84858339316

VL - 207

SP - 91

EP - 100

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -