Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Uta Hejral"'
Autor:
Janis Timoshenko, Clara Rettenmaier, Dorottya Hursán, Martina Rüscher, Eduardo Ortega, Antonia Herzog, Timon Wagner, Arno Bergmann, Uta Hejral, Aram Yoon, Andrea Martini, Eric Liberra, Mariana Cecilio de Oliveira Monteiro, Beatriz Roldan Cuenya
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Copper and nitrogen co-doped carbon catalysts exhibit a remarkable behavior during the electrocatalytic CO2 reduction (CO2RR), namely, the formation of metal nanoparticles from Cu single atoms, and their subsequent reversible redispersion. H
Externí odkaz:
https://doaj.org/article/8e580c32ed9c493c82be11a943304d75
Tracking the shape-dependent sintering of platinum–rhodium model catalysts under operando conditions
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Understanding nanoparticle sintering is crucial for designing stable catalysts. Here, the authors use high energy grazing incidence X-ray diffraction as an in situprobe to track the compositiondependent three-dimensional restructuring of supported al
Externí odkaz:
https://doaj.org/article/41eb5b028fcf4c279a75251f479ff2ae
Autor:
Janis Timoshenko, Felix T. Haase, Sascha Saddeler, Martina Rüscher, Hyo Sang Jeon, Antonia Herzog, Uta Hejral, Arno Bergmann, Stephan Schulz, Beatriz Roldan Cuenya
Publikováno v:
Journal of the American Chemical Society
Journal of the American Chemical Society 145(7), 4065 – 4080 (2023). doi:10.1021/jacs.2c11824
Journal of the American Chemical Society 145(7), 4065 – 4080 (2023). doi:10.1021/jacs.2c11824
Journal of the American Chemical Society 145(7), 4065 – 4080 (2023). doi:10.1021/jacs.2c11824
Bimetallic transition-metal oxides, such as spinel-like Co$_x$Fe$_{3–x}$O$_4$ materials, are known as attractive catalysts for the oxygen evolution
Bimetallic transition-metal oxides, such as spinel-like Co$_x$Fe$_{3–x}$O$_4$ materials, are known as attractive catalysts for the oxygen evolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3443731086cc59695630bda26e23796a
https://hdl.handle.net/21.11116/0000-000C-ACF6-D21.11116/0000-000C-ACF8-B
https://hdl.handle.net/21.11116/0000-000C-ACF6-D21.11116/0000-000C-ACF8-B
Autor:
Tom Arnold, Ann Terry, Elizabeth Blackburn, Uta Hejral, Zsuzsa Heyles, Andrew McCluskey, Tommy Nylander, Max Wolff
Publikováno v:
Neutron News. 33:2-4
Autor:
Uta Hejral, Stefano Albertin, Anders Nilsson, David Degerman, Mikhail Shipilin, Christoph Schlueter, Hanna Karlsson, Peter Amann, Johan Gustafson, Christopher M. Goodwin, Christian Hulteberg, Patrick Lömker, Sara Blomberg, Edvin Lundgren
Publikováno v:
ACS Catalysis
ACS catalysis 11(15), 9128-9135 (2021). doi:10.1021/acscatal.1c00806
ACS catalysis 11(15), 9128-9135 (2021). doi:10.1021/acscatal.1c00806
Performing fundamental operando catalysis studies under realistic conditions is a key to further develop and increase the efficiency of industrial catalysts. Operando X-ray photoelectron spectroscopy (XPS) experiments have been limited to pressures,
Autor:
Beatriz Roldan Cuenya, Aram Yoon, Janis Timoshenko, Hyo Sang Jeon, Sebastian Z. Oener, Clara Rettenmaier, Uta Hejral, Felix T. Haase, Antonia Herzog, See Wee Chee
Publikováno v:
Journal of the American Chemical Society
Journal of the American Chemical Society 143(19), 7578-7587 (2021). doi:10.1021/jacs.1c03443
Journal of the American Chemical Society 143(19), 7578-7587 (2021). doi:10.1021/jacs.1c03443
In this study, we have taken advantage of a pulsed CO$_2$ electroreduction reaction (CO$_2$RR) approach to tune the product distribution at industrially relevant current densities in a gas-fed flow cell. We compared the CO$_2$RR selectivity of Cu cat
Autor:
Aravind Asthagiri, Rachel Martin, Vikram Mehar, Lindsay R. Merte, Uta Hejral, Minkyu Kim, Stefano Albertin, Christopher J. Lee, Jason F. Weaver
Publikováno v:
ACS Catalysis. 11:5004-5016
Continuous exposure to methane causes IrO2(110) films on Ir(100) to undergo extensive reduction at temperatures from 500 to 650 K. Measurements using in situ X-ray photoelectron spectroscopy (XPS) confirm that CH4 oxidation on IrO2(110) converts so-c
Autor:
Yves Garreau, Pilar Ferrer, Dave Grinter, Uta Hejral, Sara Blomberg, Edvin Lundgren, Andrea Resta, Corentin Chatelier, Georg Held, Stefano Albertin, Federica Venturini, Alina Vlad, Alessandro Coati
Publikováno v:
The Journal of Physical Chemistry C. 124:22192-22199
The reaction of ammonia oxidation over PtRh binary alloy has been studied with a surface science approach by operando techniques such as Near Ambient Pressure X-Ray Photoemission Spectroscopy (NAP-...
Autor:
Rachel Martin, Aravind Asthagiri, Minkyu Kim, Uta Hejral, Christopher J. Lee, Edvin Lundgren, Stefano Albertin, Vikram Mehar, Jason F. Weaver, Lindsay R. Merte
Publikováno v:
The Journal of Physical Chemistry Letters. 11:7184-7189
High-resolution X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) were used to characterize IrO2(110) films on Ir(100) with stoichiometric as well as OH-rich terminations. Core-level Ir 4f and O 1s peaks were identified for t
Autor:
David Degerman, Mikhail Shipilin, Patrick Lömker, Christopher M. Goodwin, Sabrina M. Gericke, Uta Hejral, Jörgen Gladh, Hsin-Yi Wang, Christoph Schlueter, Anders Nilsson, Peter Amann
Publikováno v:
Journal of the American Chemical Society 144(16), 7038-7042 (2022). doi:10.1021/jacs.2c00300
Journal of the American Chemical Society 144(16), 7038 - 7042 (2022). doi:10.1021/jacs.2c00300
The CO hydrogenation reaction over the Rh(111) and (211) surfaces has been investigated operando by X-ray photoelectron spectroscopy at a pressure of
The CO hydrogenation reaction over the Rh(111) and (211) surfaces has been investigated operando by X-ray photoelectron spectroscopy at a pressure of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c00f1f2c2dcfe2b1761c49c7401ffdd5