Výsledky vyhledávání - "Thomas Mittermeier"

Nanometric Fe-Substituted ZrO2on Carbon Black as PGM-Free ORR Catalyst for PEMFCs

Autor: Peter Nagel, Davide Menga, Michael Merz, Stefan Schuppler, Michele Pavone, Pankaj Madkikar, Armin Siebel, Friedrich E. Wagner, Michele Piana, Ana B. Muñoz-García, Hubert A. Gasteiger, Gregor S. Harzer, Thomas Mittermeier

Publikováno v: Journal of The Electrochemical Society. 166:F3032-F3043

In this contribution, we demonstrate the presence of high-spin Fe3+ in Fe-substituted ZrO2 (FexZr1−xO2−δ), as deduced from X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure (NEXAFS), and 57Fe Mössbauer spectrosco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41f694c7867f500846e89400553347eb
https://doi.org/10.1149/2.0041907jes

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Synthesis optimization of carbon-supported ZrO2 nanoparticles from different organometallic precursors

Autor: Christoph Denk, Stefania Specchia, Pankaj Madkikar, Thomas Mittermeier, Alessandro Hugo Monteverde Videla, Xiaodong Wang, Michele Piana, Hubert A. Gasteiger

Publikováno v: Journal of Nanostructure in Chemistry, Vol 7, Iss 2, Pp 133-147 (2017)

We report here the synthesis of carbon-supported ZrO2 nanoparticles from zirconium oxyphthalocyanine (ZrOPc) and acetylacetonate [Zr(acac)4]. Using thermogravimetric analysis (TGA) coupled with mass spectrometry (MS), we could investigate the thermal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45f3bd0761ff3a28b8251d6d47f20816
https://doi.org/10.1007/s40097-017-0225-6

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Through-Plane Conductivity of Anion Exchange Membranes at Sub-Freezing Temperatures—Hydroxide vs (Bi-)Carbonate Ions

Autor: Thomas Mittermeier, Masamitsu Egawa, Lukas Bonorand, Jan N. Schwämmlein, Nhat Long T. Pham, Hubert A. Gasteiger

Publikováno v: Journal of The Electrochemical Society. 167:084513

Anion exchange membrane fuel cells (AEMFCs) are considered as potential future alternative for proton exchange membrane fuel cells (PEMFCs) due to their potential to not require platinum. However, many properties of alkaline ionomers/membranes are no

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5db6f36a1b7bf4e7cdc7762292df7c6c
https://doi.org/10.1149/1945-7111/ab8cdf

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Activity, Stability and Degradation of Carbon Supported Palladium (Pd/C) Fuel Cell Electrocatalysts for the Oxygen Reduction

Autor: Frédéric Hasché, Hubert A. Gasteiger, Alexandra Weiß, Thomas Mittermeier

Publikováno v: ECS Transactions. 69:303-313

For large-scale commercialization of polymer electrolyte membrane fuel cells (PEMFCs), a significant reduction or, ultimately, replacement of platinum as cathode catalyst for the oxygen reduction reaction (ORR) is of great interest. As a first step,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab30f2afdac2ef96dcf1a1a79361abdd
https://doi.org/10.1149/06917.0303ecst

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Nanometric Fe-substituted ZrO2 on Carbon Black: a Novel PGM-Free ORR Catalyst for PEMFCs

Autor: Michele Piana, Pankaj Madkikar, Davide Menga, Gregor S. Harzer, Thomas Mittermeier, Armin Siebel, Friedrich E. Wagner, Michael Merz, Stefan Schuppler, Peter Nagel, Hubert A. Gasteiger

Publikováno v: ECS Meeting Abstracts. :1721-1721

The independence from Platinum-Group-Metal (PGM) is one of the major goals towards the commercialization of Proton Exchange Membrane Fuel Cells (PEMFCs), due to the limited availability of PGM and their considerable loading on the Oxygen-Reduction-Re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2541a82c7ea398ff67fcdcb2941d7734
https://doi.org/10.1149/ma2018-01/30/1721

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PEM Fuel Cell Start-up/Shut-down Losses vs Temperature for Non-Graphitized and Graphitized Cathode Carbon Supports

Autor: Frédéric Hasché, Hubert A. Gasteiger, Thomas Mittermeier, Gerold Hübner, Alexandra Weiß

One of the key figures for the success of proton exchange membrane fuel cells (PEMFCs) in automotive applications is lifetime. Damage of the cathode carbon support, induced by hydrogen/air fronts moving through the anode during start-up/shut-down (SU

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e300e6a38ce93e9d7f7c9cefcf4210b6
https://mediatum.ub.tum.de/doc/1651479/document.pdf

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