Zobrazeno 1 - 10
of 15
pro vyhledávání: '"George Polymeros"'
Autor:
Nejc Hodnik, Claudio Baldizzone, George Polymeros, Simon Geiger, Jan-Philipp Grote, Serhiy Cherevko, Andrea Mingers, Aleksandar Zeradjanin, Karl J. J. Mayrhofer
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Given the scarcity and cost of platinum, it is important to develop sustainable processes for its recycling. Here, the authors report the dissolution of metallic platinum using reductive and oxidative gases to repetitively change its surface oxidatio
Externí odkaz:
https://doaj.org/article/735f375ca64046e2bfd5bb5e3e988d5d
Autor:
Nejc Hodnik, George Polymeros, Karl Johann Jakob Mayrhofer, Stefano Mezzavilla, Ferdi Schüth, Ann-Christin Swertz, Johannes Knossalla, Enrico Pizzutilo, Claudio Baldizzone, Marc Heggen, Gareth P. Keeley
Publikováno v:
ACS Catalysis
This study focuses on the synthesis and electrochemical performance (i.e, activity and stability) of advanced electrocatalysts for the oxygen reduction reaction (ORR), made of Pt–Ni nanoparticles embedded in hollow graphitic spheres (HGS). The mech
Publikováno v:
Electroanalysis. 28:2256-2269
The “volcano”-relationship for the electrocatalytic hydrogen evolution reaction seems to be a generally accepted phenomenology in electrochemistry. Based on the Sabatier principle, which suggests a not too strong, nor too weak binding of reaction
Autor:
Stefano Mezzavilla, Ferdi Schüth, George Polymeros, Aleksandar R. Zeradjanin, Jan-Philipp Grote, Serhiy Cherevko, Karl Johann Jakob Mayrhofer, Johannes Knossalla, Gareth P. Keeley, Simon Geiger, Claudio Baldizzone
Publikováno v:
Electrochimica Acta. 211:744-753
The performance of proton-exchange membrane fuel cells (PEMFCs) is defined by the equally important parameters of the intrinsic activity and stability of the electrocatalysts. This work focuses on the stability of carbon supported high surface area o
Autor:
Karl Johann Jakob Mayrhofer, Enrico Pizzutilo, Stefano Mezzavilla, Serhiy Cherevko, Claudio Baldizzone, George Polymeros
Publikováno v:
ChemElectroChem. 3:1524-1536
Autor:
Karl Johann Jakob Mayrhofer, Matija Gatalo, Primož Jovanovič, Marjan Bele, Miran Gaberšček, Francisco Ruiz-Zepeda, Martin Šala, Nejc Hodnik, Andraž Pavlišič, Vid Simon Šelih, Jan-Philipp Grote, Samo B. Hočevar, George Polymeros
Publikováno v:
ACS Catalysis. 6:1630-1634
Corrosion resistance of a transition-metal-rich PtCu3/C oxygen reduction reaction (ORR) catalyst as a representative of Pt alloy-based materials has been significantly improved by doping with small amounts of gold (
Autor:
Simon Geiger, Karl Johann Jakob Mayrhofer, Alfred Ludwig, Philipp Stock, Benjamin Breitbach, Alan Savan, George Polymeros, Serhiy Cherevko, Olga Kasian
Publikováno v:
Journal of the Electrochemical Society 163(11), F3099-F3104 (2016). doi:10.1149/2.0131611jes
Journal of the Electrochemical Society
Journal of the Electrochemical Society
High oxygen evolution reaction activity of ruthenium and long term stability of iridium in acidic electrolytes make their mixed oxides attractive candidates for utilization as anodes in water electrolyzers. Indeed, such materials were addressed in nu
Autor:
Aleksandar R. Zeradjanin, Michael Rohwerder, George Polymeros, Ashokanand Vimalanandan, Karl Johann Jakob Mayrhofer, Angel Angelov Topalov
Publikováno v:
Physical chemistry, chemical physics 19(26), 17019-17027 (2017). doi:10.1039/C7CP03081A
A major step in the development of (electro)catalysis would be the possibility to estimate accurately the energetics of adsorption processes related to reaction intermediates. Computational chemistry (e.g. using DFT) developed significantly in that d
Autor:
Olga Kasian, George Polymeros, Frédéric Jaouen, Moulay Tahar Sougrati, Chang Hyuck Choi, Enrico Pizzutilo, Nastaran Ranjbar Sahraie, Claudio Baldizzone, Karl Johann Jakob Mayrhofer, Anna Katharina Schuppert
Publikováno v:
ACS Catalysis
ACS Catalysis, American Chemical Society, 2016, 6 (5), pp.3136. ⟨10.1021/acscatal.6b00643⟩
ACS Catalysis, American Chemical Society, 2016, 6 (5), pp.3136. ⟨10.1021/acscatal.6b00643⟩
International audience; For a successful replacement of Pt, tremendous efforts have hitherto been made to develop high-performing Fe-N-C catalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells (PEMFCs). In compari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7a2837fc8518d5a2407685dfac0dc1e
https://hal.archives-ouvertes.fr/hal-01511257
https://hal.archives-ouvertes.fr/hal-01511257
Autor:
George Polymeros, Karl Johann Jakob Mayrhofer, Serhiy Cherevko, Simon Geiger, Claudio Baldizzone, Nejc Hodnik, Jan-Philipp Grote, Aleksandar R. Zeradjanin, Andrea Maria Mingers
Publikováno v:
Nature Communications
Nature Communications 7, 13164-(2016). doi:10.1038/ncomms13164
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Nature Communications 7, 13164-(2016). doi:10.1038/ncomms13164
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
The recycling of precious metals, for example, platinum, is an essential aspect of sustainability for the modern industry and energy sectors. However, due to its resistance to corrosion, platinum-leaching techniques rely on high reagent consumption a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05a81579ec63ed32e34b0df06aa5a46d
https://hdl.handle.net/11858/00-001M-0000-002C-E949-221.11116/0000-0005-9303-1
https://hdl.handle.net/11858/00-001M-0000-002C-E949-221.11116/0000-0005-9303-1