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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

New approach by electrospray technique to prepare a gas diffusion layer for the proton exchange membrane fuel cell anode

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Author(s):
Silva, L. M. G. [1, 2, 3, 4] ; Leocadio, G. N. [5] ; de Souza, R. F. B. [2] ; Mierzwa, J. C. [5] ; Duong, A. [1, 4] ; Venancio, E. C. [3] ; Neto, A. O. [2]
Total Authors: 7
Affiliation:
[1] Univ Quebec Trois Rivieres, Dept Chim Biochim & Phys, Trois Rivieres, PQ G9A 5H7 - Canada
[2] IPEN CNEN SP, Inst Pesquisas Energet & Nucl, Av Prof Lineu Prestes 2242, Cidade Univ, BR-05508000 Sao Paulo, SP - Brazil
[3] Univ Fed ABC UFABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas C, Av Estados 5001, BR-09210580 Santo Andre, SP - Brazil
[4] Univ Quebec Trois Rivieres, Inst Rech Sur Hydrogene, Trois Rivieres, PQ G9A 5H7 - Canada
[5] Escola Politecn USP, Dept Engn Ambiental & Hidraul, CIRRA Ctr Int Referencia Reuso Agua, Av Prof Luciano Gualberto 380, Cidade Univ, BR-05508010 Sao Paulo, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: MATERIALS TODAY ADVANCES; v. 12, DEC 2021.
Web of Science Citations: 0
Abstract

The performance of the electrospray technique was applied to obtain a gas diffusion layer (GDL) for a proton exchange membrane fuel cell. It was confirmed by confocal microscopy that polytetrafluorethylene (PTFE) was impregnated into the backbone, forming a dispersed layer of microscopic size homogeneously distributed over the substrate. The PTFE layer was characterized by infrared spectroscopy and thermogravimetric analysis. In this work, we demonstrated that the use of the GDL prepared by electrospray increases the maximum power of the H-2/O-2 fuel cell by about 10% and decreases the diffusion loss of the electrode owing to a better distribution characteristic hydrophobic coating with low impedance to gas diffusion. Thus, our method is promising for the development of fuel cells by the production of diffusion layers. (C) 2021 The Author(s). Published by Elsevier Ltd. (AU)

FAPESP's process: 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies
Grantee:Fabio Coral Fonseca
Support Opportunities: Research Grants - Research Centers in Engineering Program