Catalyst-layer ionomer imaging of fuel cells

Laure Guetaz; Miguel Lopez-Haro; Sylvie Escribano; Arnaud Morin; Gerard Gebel; David A. Cullen; Karren L. More; Rod L. Borup

doi:10.1149/06917.0455ecst

Catalyst-layer ionomer imaging of fuel cells

Laure Guetaz, Miguel Lopez-Haro, Sylvie Escribano, Arnaud Morin, Gerard Gebel, David A. Cullen, Karren L. More, Rod L. Borup

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

41 Scopus citations

Abstract

Investigation of membrane/electrode assembly (MEA) microstructure has become an essential step to optimize the MEA components and manufacturing processes or to study the MEA degradation. For these investigations, transmission electron microscopy (TEM) is a tool of choice as it provides direct imaging of the different components. TEM is then widely used for analyzing the catalyst nanoparticles and their carbon support. However, the ionomer inside the electrode is more difficult to be imaged. The difficulties come from the fact that the ionomer forms an ultrathin layer surrounding the carbon particles and in addition, these two components, having similar density, present no difference in contrast. In this work, we show how the recent progresses in TEM techniques as spherical aberration (Cs) corrected HRTEM, electron tomography and X-EDS elemental mapping provide new possibilities for imaging this ionomer network and consequently to study its degradation.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells 15, PEFC 15
Editors	H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, P. Strasser
Publisher	Electrochemical Society Inc.
Pages	455-464
Number of pages	10
Edition	17
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06917.0455ecst
State	Published - 2015
Event	Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting - Phoenix, United States Duration: Oct 11 2015 → Oct 15 2015

Publication series

Name	ECS Transactions
Number	17
Volume	69
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting
Country/Territory	United States
City	Phoenix
Period	10/11/15 → 10/15/15

UN SDGs

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

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10.1149/06917.0455ecst

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Guetaz, L., Lopez-Haro, M., Escribano, S., Morin, A., Gebel, G., Cullen, D. A., More, K. L., & Borup, R. L. (2015). Catalyst-layer ionomer imaging of fuel cells. In H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, & P. Strasser (Eds.), Polymer Electrolyte Fuel Cells 15, PEFC 15 (17 ed., pp. 455-464). (ECS Transactions; Vol. 69, No. 17). Electrochemical Society Inc.. https://doi.org/10.1149/06917.0455ecst

Guetaz, Laure ; Lopez-Haro, Miguel ; Escribano, Sylvie et al. / Catalyst-layer ionomer imaging of fuel cells. Polymer Electrolyte Fuel Cells 15, PEFC 15. editor / H. A. Gasteiger ; A. Z. Weber ; V. K. Ramani ; T. F. Fuller ; R. A. Mantz ; H. Uchida ; F. N. Buchi ; M. Edmundson ; C. Coutanceau ; J. M. Fenton ; S. Mitsushima ; T. J. Schmidt ; K. Shinohara ; K. Swider-Lyons ; D. J. Jones ; B. S. Pivovar ; K. E. Ayers ; K. A. Perry ; S. R. Narayanan ; P. Strasser. 17. ed. Electrochemical Society Inc., 2015. pp. 455-464 (ECS Transactions; 17).

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title = "Catalyst-layer ionomer imaging of fuel cells",

abstract = "Investigation of membrane/electrode assembly (MEA) microstructure has become an essential step to optimize the MEA components and manufacturing processes or to study the MEA degradation. For these investigations, transmission electron microscopy (TEM) is a tool of choice as it provides direct imaging of the different components. TEM is then widely used for analyzing the catalyst nanoparticles and their carbon support. However, the ionomer inside the electrode is more difficult to be imaged. The difficulties come from the fact that the ionomer forms an ultrathin layer surrounding the carbon particles and in addition, these two components, having similar density, present no difference in contrast. In this work, we show how the recent progresses in TEM techniques as spherical aberration (Cs) corrected HRTEM, electron tomography and X-EDS elemental mapping provide new possibilities for imaging this ionomer network and consequently to study its degradation.",

author = "Laure Guetaz and Miguel Lopez-Haro and Sylvie Escribano and Arnaud Morin and Gerard Gebel and Cullen, {David A.} and More, {Karren L.} and Borup, {Rod L.}",

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doi = "10.1149/06917.0455ecst",

language = "English",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

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pages = "455--464",

editor = "Gasteiger, {H. A.} and Weber, {A. Z.} and Ramani, {V. K.} and Fuller, {T. F.} and Mantz, {R. A.} and H. Uchida and Buchi, {F. N.} and M. Edmundson and C. Coutanceau and Fenton, {J. M.} and S. Mitsushima and Schmidt, {T. J.} and K. Shinohara and K. Swider-Lyons and Jones, {D. J.} and Pivovar, {B. S.} and Ayers, {K. E.} and Perry, {K. A.} and Narayanan, {S. R.} and P. Strasser",

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Guetaz, L, Lopez-Haro, M, Escribano, S, Morin, A, Gebel, G, Cullen, DA , More, KL & Borup, RL 2015, Catalyst-layer ionomer imaging of fuel cells. in HA Gasteiger, AZ Weber, VK Ramani, TF Fuller, RA Mantz, H Uchida, FN Buchi, M Edmundson, C Coutanceau, JM Fenton, S Mitsushima, TJ Schmidt, K Shinohara, K Swider-Lyons, DJ Jones, BS Pivovar, KE Ayers, KA Perry, SR Narayanan & P Strasser (eds), Polymer Electrolyte Fuel Cells 15, PEFC 15. 17 edn, ECS Transactions, no. 17, vol. 69, Electrochemical Society Inc., pp. 455-464, Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting, Phoenix, United States, 10/11/15. https://doi.org/10.1149/06917.0455ecst

Catalyst-layer ionomer imaging of fuel cells. / Guetaz, Laure; Lopez-Haro, Miguel; Escribano, Sylvie et al.
Polymer Electrolyte Fuel Cells 15, PEFC 15. ed. / H. A. Gasteiger; A. Z. Weber; V. K. Ramani; T. F. Fuller; R. A. Mantz; H. Uchida; F. N. Buchi; M. Edmundson; C. Coutanceau; J. M. Fenton; S. Mitsushima; T. J. Schmidt; K. Shinohara; K. Swider-Lyons; D. J. Jones; B. S. Pivovar; K. E. Ayers; K. A. Perry; S. R. Narayanan; P. Strasser. 17. ed. Electrochemical Society Inc., 2015. p. 455-464 (ECS Transactions; Vol. 69, No. 17).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Catalyst-layer ionomer imaging of fuel cells

AU - Guetaz, Laure

AU - Lopez-Haro, Miguel

AU - Escribano, Sylvie

AU - Morin, Arnaud

AU - Gebel, Gerard

AU - Cullen, David A.

AU - More, Karren L.

AU - Borup, Rod L.

N1 - Publisher Copyright: © The Electrochemical Society.

PY - 2015

Y1 - 2015

N2 - Investigation of membrane/electrode assembly (MEA) microstructure has become an essential step to optimize the MEA components and manufacturing processes or to study the MEA degradation. For these investigations, transmission electron microscopy (TEM) is a tool of choice as it provides direct imaging of the different components. TEM is then widely used for analyzing the catalyst nanoparticles and their carbon support. However, the ionomer inside the electrode is more difficult to be imaged. The difficulties come from the fact that the ionomer forms an ultrathin layer surrounding the carbon particles and in addition, these two components, having similar density, present no difference in contrast. In this work, we show how the recent progresses in TEM techniques as spherical aberration (Cs) corrected HRTEM, electron tomography and X-EDS elemental mapping provide new possibilities for imaging this ionomer network and consequently to study its degradation.

AB - Investigation of membrane/electrode assembly (MEA) microstructure has become an essential step to optimize the MEA components and manufacturing processes or to study the MEA degradation. For these investigations, transmission electron microscopy (TEM) is a tool of choice as it provides direct imaging of the different components. TEM is then widely used for analyzing the catalyst nanoparticles and their carbon support. However, the ionomer inside the electrode is more difficult to be imaged. The difficulties come from the fact that the ionomer forms an ultrathin layer surrounding the carbon particles and in addition, these two components, having similar density, present no difference in contrast. In this work, we show how the recent progresses in TEM techniques as spherical aberration (Cs) corrected HRTEM, electron tomography and X-EDS elemental mapping provide new possibilities for imaging this ionomer network and consequently to study its degradation.

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SP - 455

EP - 464

BT - Polymer Electrolyte Fuel Cells 15, PEFC 15

A2 - Gasteiger, H. A.

A2 - Weber, A. Z.

A2 - Ramani, V. K.

A2 - Fuller, T. F.

A2 - Mantz, R. A.

A2 - Uchida, H.

A2 - Buchi, F. N.

A2 - Edmundson, M.

A2 - Coutanceau, C.

A2 - Fenton, J. M.

A2 - Mitsushima, S.

A2 - Schmidt, T. J.

A2 - Shinohara, K.

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A2 - Narayanan, S. R.

A2 - Strasser, P.

PB - Electrochemical Society Inc.

T2 - Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting

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Guetaz L, Lopez-Haro M, Escribano S, Morin A, Gebel G, Cullen DA et al. Catalyst-layer ionomer imaging of fuel cells. In Gasteiger HA, Weber AZ, Ramani VK, Fuller TF, Mantz RA, Uchida H, Buchi FN, Edmundson M, Coutanceau C, Fenton JM, Mitsushima S, Schmidt TJ, Shinohara K, Swider-Lyons K, Jones DJ, Pivovar BS, Ayers KE, Perry KA, Narayanan SR, Strasser P, editors, Polymer Electrolyte Fuel Cells 15, PEFC 15. 17 ed. Electrochemical Society Inc. 2015. p. 455-464. (ECS Transactions; 17). doi: 10.1149/06917.0455ecst

Catalyst-layer ionomer imaging of fuel cells

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