A cost-effective PEM fuel cell test system based on hydraulic compression with optimized platinum catalyst loading

Rost, Ulrich; Mărginean, Gabriela; Muntean, Roxana; Podleschny, Pit; Brodmann, Michael; Merino, C.; Díez, Roberto A.

doi:10.1109/iesc.2016.7569500

Cited by 5 publications

(7 citation statements)

References 30 publications

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“…CV investigations of the anodes before and after the AST measured in PEMFC were recorded (Figure ) and used to estimate the ECSAs (Table ). Despite of the equal PEMFC performance, Pt/CNF_a anodes have a considerably higher ECSA (79.5 m Pt 2 g Pt −1 ) than the ZBT_JM_a ones (31.9 m Pt 2 g Pt −1 ), which results from the improved catalyst layer structure with superior catalyst utilization achieved by the applied electrode preparation process . Furthermore, after the in situ anode aging, the ECSA of Pt/CNF_a decreases by 23.5%, whereas that of ZBT_JM_a drops by 61.7%.…”

Section: Resultsmentioning

confidence: 97%

“…An optimized, simple and reproducible Pt deposition procedure for ultra‐low Pt loaded electrodes based on the pulsed electrodeposition technique was developed. The detailed procedure is described in a previous work . The electrodes performance and durability were tested in a 25 cm 2 single cell hardware (balticFuelCells GmbH, water temperature‐controlled version) with optimized flow field designed by ZBT (Zentrum für Brenstoffzellentechnik, Duisburg, Germany).…”

Section: Methodsmentioning

confidence: 99%

“…The chamber pressure and treatment time were 60 Pa and 10 min, respectively. Gas diffusion electrodes (GDE) were prepared using CNFs as support for Pt catalysts deposited via pulsed electrodeposition technique as described elsewhere . The Pt‐containing electrolytes for anodes and cathodes were developed together with Wieland Edelmetalle, Germany.…”

Section: Methodsmentioning

confidence: 99%

“…In this work, we report on the optimization of a promising manufacturing route for PEMFC electrodes with ultra‐low platinum loading. We already presented the beneficial use of the corrosion‐resistant catalyst carbon support material with a high graphitization degree, which is decorated with platinum nanoparticles by pulsed electrodeposition technique . Due to the high hydrophobicity of carbon materials with a high graphitization degree, a significant step is the initial functionalization of the raw material.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Carbon Nanofiber‐supported Electrocatalysts with Ultra‐low Platinum Loading for the Use in PEM Fuel Cells

et al. 2018

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The present study aims to investigate gas diffusion electrodes with ultra‐low platinum loading and increased durability, prepared by pulsed electrodeposition process, applicable for polymer electrolyte membrane fuel cells (PEMFC). Testing was performed both, in situ in a PEMFC test bench while prepared GDEs were compared to anodes and cathodes with commercially available catalysts by Johnson Matthey (JM), as well as ex situ regarding electrochemical properties and catalyst layer structure. High and stable performance of developed electrodes was achieved, while the Pt catalyst loading of investigated anodes and cathodes was reduced to 10 µgPt cm−2. The catalyst deposition was achieved via pulsed electrodeposition process from H2PtCl6‐containing electrolyte on an oxygen plasma‐pretreated corrosion‐stable carbon nanofiber (CNF) support. In situ performance tests show a similar operation behavior of the compared anodes, while activation losses of investigated cathodes are high due to the limited amount of catalyst material. However, Pt/CNF_c cathodes show significantly higher power densities than cathodes prepared with JM catalyst. Membrane electrode assemblies containing developed Pt/CNF_a anodes with 10 µgPt cm−2 reached a power density of 0.525 W cm−2 at a cell potential of 0.65 V, which was similar to anodes with commercially available HiSPEC 2000 catalysts by JM. Accelerated stress tests (AST) revealed that Pt/CNF_a anodes preserve their performance, whereas the commercial catalyst degraded severely. Cyclic voltammetry (CV) indicated a high electrochemical active surface area of Pt/CNF_a anodes. Moreover, the electrode characteristics, analyzed via electrochemical impedance spectroscopy after AST, showed marginal anode degradation.

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Section: Resultsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Carbon Nanofiber‐supported Electrocatalysts with Ultra‐low Platinum Loading for the Use in PEM Fuel Cells

et al. 2018

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“…Rost et al [41] deposited Pt particles on carbon nanofibers (CNF) by employing the pulse plating technique (PPT). They observed 3.1 times higher ECSA of 148.6 cm 2 mg -1 with CNF functionalization at 120 W for 10 min.…”

Section: Improving Pt Dispersionmentioning

confidence: 99%

Platinum utilization in proton exchange membrane fuel cell and direct methanol fuel cell - Review

Bandapati

Goel

Krishnamurthy

2019

J. Electrochem. Sci. Eng.

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<p class="PaperKeywordTitle"><span lang="EN-US">Proton exchange membrane fuel cell (PEMFC) and direct methanol fuel cell (DMFC) are increasingly used as substitutes to conventional energy systems. Their compact design, high energy density and efficient energy-conversion offer several advantages over existing energy systems with potential for use in a variety of applications. However, performance, robustness and cost are the key challenges to overcome before fuel cells can be commercialized. Even though the use of platinum (Pt) and platinum group metal (PGM) alloy catalysts provide higher performance and durability, they are at the same time the largest cost components which need to be addressed. This paper reviews different approaches adopted to enhance Pt utilization such as reducing Pt loading, decreasing Pt particle size, developing Pt free metallic alloy catalyst, improving Pt dispersion, developing membrane electrode assembly (MEA) fabrication methods, increasing mass-transport at the electrode surface and modifying the catalyst support materials. Finally, the performance optimization efforts for Pt utilization are summarized with insights into probable directions of future research in this area.</span></p>

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Plasma Technology Applications in Proton Exchange Membrane Fuel Cell Systems

Luo,

Li,

Zhang

et al. 2024

ChemCatChem

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Fuel cells have become a prominent research focus in the realm of clean energy, owing to their attributes of environmental sustainability, high efficiency, and renewable potential. The catalytic activity of electrode materials and the characteristics of proton exchange membranes are considered pivotal determinants of fuel cell performance. Plasma is abundant in high‐energy electrons and active species, proven to be a rapid, facile, and green approach for the preparation and treatment of catalytic materials and polymers. This review presents recent applications of plasma technology in proton exchange membrane fuel cells across four key dimensions: cathodes, anodes, proton exchange membranes, and process enhancement, including the preparation and treatment of noble metal catalysts, non‐noble metal catalysts, non‐metal catalysts, and polymer membranes. Furthermore, critical issues of plasma technology applied in PEMFCs were also discussed.

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A cost-effective PEM fuel cell test system based on hydraulic compression with optimized platinum catalyst loading

Cited by 5 publications

References 30 publications

Investigation of Carbon Nanofiber‐supported Electrocatalysts with Ultra‐low Platinum Loading for the Use in PEM Fuel Cells

Investigation of Carbon Nanofiber‐supported Electrocatalysts with Ultra‐low Platinum Loading for the Use in PEM Fuel Cells

Platinum utilization in proton exchange membrane fuel cell and direct methanol fuel cell - Review

Plasma Technology Applications in Proton Exchange Membrane Fuel Cell Systems

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