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Oxygen reduction reaction and proton exchange membrane fuel cell performance of pulse electrodeposited Pt–Ni and Pt–Ni–Mo(O) nanoparticles
Universitat Autònoma de Barcelona, Spain.
RISE Research Institutes of Sweden, Säkerhet och transport, Elektrifiering och pålitlighet. Jönköping University, Sweden.ORCID-id: 0000-0002-2788-960x
RISE Research Institutes of Sweden, Säkerhet och transport, Elektrifiering och pålitlighet.ORCID-id: 0000-0002-3038-4039
Jönköping University, Sweden.
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2022 (Engelska)Ingår i: Materials Today Energy, ISSN 2468-6069, Vol. 27, artikel-id 101023Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Proton exchange membrane fuel cells (PEMFCs) are an important alternative to fossil fuels and a complement to batteries for the electrification of vehicles. However, their high cost obstructs commercialization, and the catalyst material, including its synthesis, constitutes one of the major cost components. In this work, Pt–Ni and Pt–Ni–Mo(O) nanoparticles (NPs) of varying composition have been synthesized in a single step by pulse electrodeposition onto a PEMFC's gas diffusion layer. The proposed synthesis route combines NP synthesis and their fixation onto the microporous carbon layer in a single step. Both Pt–Ni and Pt–Ni–Mo(O) catalysts exhibit extremely high mass activities at oxygen reduction reaction (ORR) with very low Pt loadings of around 4 μg/cm2 due to the favorable distribution of NPs in contact with the proton exchange membrane. Particle sizes of 40–50 nm and 40–80 nm were obtained for Pt–Ni and Pt–Ni–Mo(O) systems, respectively. The highest ORR mass activities were found for Pt67Ni33 and Pt66Ni32–MoOx NPs. The feasibility of a single-step electrodeposition of Pt–Ni–Mo(O) NPs was successfully demonstrated; however, the ternary NPs are of more amorphous nature in contrast to the crystalline, binary Pt–Ni particles, due to the oxidized state of Mo. Nevertheless, despite their heterogeneous nature, the ternary NPs show homogeneous behavior even on a microscopic scale. © 2022 The Author(s)

Ort, förlag, år, upplaga, sidor
Elsevier Ltd , 2022. Vol. 27, artikel-id 101023
Nyckelord [en]
Electrocatalysis, Electrosynthesis, Hydrogen energy, PEM fuel cell, Pulse electrodeposition, Binary alloys, Catalysts, Diffusion in gases, Electrodeposition, Electrodes, Electrolytic reduction, Fossil fuels, Microporosity, Molybdenum oxide, Nanoparticles, Oxygen, Proton exchange membrane fuel cells (PEMFC), Synthesis (chemical), Fuel cell performance, Mass activity, Oxygen reduction reaction, Proton-exchange membranes fuel cells, Single-step, Ternary nanoparticles
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Kemi
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URN: urn:nbn:se:ri:diva-59325DOI: 10.1016/j.mtener.2022.101023Scopus ID: 2-s2.0-85130796696OAI: oai:DiVA.org:ri-59325DiVA, id: diva2:1668571
Anmärkning

 Funding details: H2020 Marie Skłodowska-Curie Actions, MSCA, 764977; Funding details: Generalitat de Catalunya, 2017-SGR-292, PID2020-116844RB-C21; Funding details: Horizon 2020; Funding text 1: This work has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 764977, the Generalitat de Catalunya under project 2017-SGR-292, and the Spanish government under project PID2020-116844RB-C21. The authors want to express their thanks to Freudenberg, Germany, who gladly supported the GDL material for this study.

Tillgänglig från: 2022-06-13 Skapad: 2022-06-13 Senast uppdaterad: 2023-05-25Bibliografiskt granskad

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Mölmen, LiveFast, Lars

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