Evaluation of TiO2 as catalyst support in Pt-TiO2/C composite cathodes for the proton exchange membrane fuel cell (Record no. 44146)

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control field MX-MdCICY
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control field 20250625140621.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-9902
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Title Evaluation of TiO2 as catalyst support in Pt-TiO2/C composite cathodes for the proton exchange membrane fuel cell
490 0# - SERIES STATEMENT
Volume/sequential designation Journal of Power Sources, 180(1), p.185-190, 2008
520 3# - SUMMARY, ETC.
Summary, etc. Anatase TiO2 is evaluated as catalyst support material in authentic Pt-TiO2/C composite gas diffusion electrodes (GDEs), as a different approach in the context of improving the proton exchange membrane fuel cell (PEMFC)cathode stability. A thermal stability study shows high carbon stability as Pt nanoparticles are supported on TiO2 instead of carbon in the Pt-TiO2/C composite material, presumably due to a reduced direct contact between Pt and C. The performance of Pt-TiO2/C cathodes is investigated electrochemically in assembled membrane-electrode assemblies (MEAs)considering the added carbon fraction and Pt concentration deposited on TiO2. The O2 reduction current for the Pt-TiO2 alone is expectedly low due to the low electronic conductivity in bulk TiO2. However, the Pt-TiO2/C composite cathodes show enhanced fuel cell cathode performance with growing carbon fraction and increasing Pt concentration deposited on TiO2. The proposed reasons for these observations are improved macroscopic and local electronic conductivity, respectively. Electron micrographs of fuel cell tested Pt-TiO2/C composite cathodes illustrate only a minor Pt migration in the Pt-TiO2/C structure, in which anatase TiO2 is used as Pt support. On the whole, the study demonstrates a stable Pt-TiO2/C composite material possessing a performance comparable to conventional Pt-C materials when incorporated in a PEMFC cathode.
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Personal name Von Kraemer, S.
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Personal name Wikander, K.
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Personal name Lindbergh, G.
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Personal name Lundblad, A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Palmqvist, A.E.C.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1yxSSQ9XNfb4t8ksh4RgZ5KTPBzKGfMLL/view?usp=drivesdk">https://drive.google.com/file/d/1yxSSQ9XNfb4t8ksh4RgZ5KTPBzKGfMLL/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-9902 25.06.2025 25.06.2025 Documentos solicitados