Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Jan P, Hofmann"'
Autor:
Xingyu Ding, Da Liu, Pengju Zhao, Xing Chen, Hongxia Wang, Freddy E. Oropeza, Giulio Gorni, Mariam Barawi, Miguel García-Tecedor, Víctor A. de la Peña O’Shea, Jan P. Hofmann, Jianfeng Li, Jongkyoung Kim, Seungho Cho, Renbing Wu, Kelvin H. L. Zhang
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Transition metal chalcogenides have been identified as low-cost and efficient electrocatalysts to promote the hydrogen evolution reaction in alkaline media. However, the identification of active sites and the underlying catalytic mechanism r
Externí odkaz:
https://doaj.org/article/1d802e50f4eb4376b181d604bb2014c6
Autor:
Clara Gohlke, Julia Gallenberger, Nico Niederprüm, Hannah Ingendae, Johann Kautz, Jan P. Hofmann, Anna K. Mechler
Publikováno v:
ChemElectroChem, Vol 11, Iss 18, Pp n/a-n/a (2024)
Abstract To meet the rising demand for green hydrogen, efficient alkaline water electrolysis demands highly active and low‐cost electrocatalysts for the oxygen evolution reaction (OER). We address this issue by focusing our work on optimizing the c
Externí odkaz:
https://doaj.org/article/963edab1b93e46fd8634d56b233fdaf6
Autor:
Thabo Matthews, Dr. Tarekegn H. Dolla, Siyabonga P. Mbokazi, Makhaokane P. Chabalala, Dr. Julia Gallenberger, Prof. Jan P. Hofmann, Dr. Kiarii E. Muriithi, Prof. Penny P. Govender, Prof. Nobanathi W. Maxakato
Publikováno v:
ChemElectroChem, Vol 11, Iss 4, Pp n/a-n/a (2024)
Abstract Direct alcohol fuel cells (DAFCs) face several challenges such as carbon support corrosion, poor kinetics, and long‐term stability, requiring improved electrocatalyst support development. We synthesized 5 %Pd/fMC−NiO using a microwave‐
Externí odkaz:
https://doaj.org/article/3ec44223feed49aeb69186e7b4d945b2
Publikováno v:
Lubricants, Vol 12, Iss 5, p 148 (2024)
Electrical bearing currents may disturb the performance of the bearings via electro-corrosion if they surpass a limit of ca. 0.1 to 0.3 A/mm2. A continuous current flow, or, after a longer time span, an alternating current or a repeating impulse-like
Externí odkaz:
https://doaj.org/article/772bc2ccd068426d9c6a5623e65a6d74
Autor:
Wuyong Zhang, Shaoqi Zhan, Jie Xiao, Tristan Petit, Christopher Schlesiger, Maximilian Mellin, Jan P. Hofmann, Tobias Heil, Riccarda Müller, Kerstin Leopold, Martin Oschatz
Publikováno v:
Advanced Science, Vol 10, Iss 28, Pp n/a-n/a (2023)
Abstract Electrochemical nitrate reduction to ammonia powered by renewable electricity is not only a promising alternative to the established energy‐intense and non‐ecofriendly Haber–Bosch reaction for ammonia generation but also a future contr
Externí odkaz:
https://doaj.org/article/0585f512ef324d9cba3cdf85a75648cb
Autor:
Maxime Dupraz, Ni Li, Jérôme Carnis, Longfei Wu, Stéphane Labat, Corentin Chatelier, Rim van de Poll, Jan P. Hofmann, Ehud Almog, Steven J. Leake, Yves Watier, Sergey Lazarev, Fabian Westermeier, Michael Sprung, Emiel J. M. Hensen, Olivier Thomas, Eugen Rabkin, Marie-Ingrid Richard
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
Understanding strain dynamics and their relationship with crystallographic facets have been largely unexplored. Here the authors demonstrate how the 3D lattice displacement and strain evolution depend on the crystallographic facets of Pt nanoparticle
Externí odkaz:
https://doaj.org/article/3ba77d4bfcc44e2d8cbc728ca16b4d89
Autor:
Clément Maheu, Mohammad Amin Zare Pour, Iban Damestoy, David Ostheimer, Maximilian Mellin, Dominik C. Moritz, Agnieszka Paszuk, Wolfram Jaegermann, Thomas Mayer, Thomas Hannappel, Jan P. Hofmann
Publikováno v:
Advanced Materials Interfaces, Vol 10, Iss 3, Pp n/a-n/a (2023)
Abstract Interfaces are key elements that define electronic properties of the final device. Inevitably, most of the active interfaces of III–V semiconductor devices are buried and it is therefore not straightforward to characterize them. The Tapere
Externí odkaz:
https://doaj.org/article/e90ce90e48c4478fb77b29c441ec377a
Autor:
Jérôme Carnis, Aseem Rajan Kshirsagar, Longfei Wu, Maxime Dupraz, Stéphane Labat, Michaël Texier, Luc Favre, Lu Gao, Freddy E. Oropeza, Nimrod Gazit, Ehud Almog, Andrea Campos, Jean-Sébastien Micha, Emiel J. M. Hensen, Steven J. Leake, Tobias U. Schülli, Eugen Rabkin, Olivier Thomas, Roberta Poloni, Jan P. Hofmann, Marie-Ingrid Richard
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
At the nanoscale, elastic strain and crystal defects largely influence the properties and functionalities of materials. Here, the authors report an unusual twin boundary migration process in a single platinum nanoparticle during carbon monoxide oxida
Externí odkaz:
https://doaj.org/article/b6237b171e9d41d7a4f095cf50460597
Autor:
Yannick Hermans, Faraz Mehmood, Kerstin Lakus-Wollny, Jan P. Hofmann, Thomas Mayer, Wolfram Jaegermann
Publikováno v:
Surfaces, Vol 4, Iss 2, Pp 106-114 (2021)
Thin films of ZnWO4, a promising photocatalytic and scintillator material, were deposited for the first time using a reactive dual magnetron sputtering procedure. A ZnO target was operated using an RF signal, and a W target was operated using a DC si
Externí odkaz:
https://doaj.org/article/def221d4340f42dcb7e0d4eb4667d98a
Autor:
Ni Li, Maxime Dupraz, Longfei Wu, Steven J. Leake, Andrea Resta, Jérôme Carnis, Stéphane Labat, Ehud Almog, Eugen Rabkin, Vincent Favre-Nicolin, Frédéric-Emmanuel Picca, Felisa Berenguer, Rim van de Poll, Jan P. Hofmann, Alina Vlad, Olivier Thomas, Yves Garreau, Alessandro Coati, Marie-Ingrid Richard
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Abstract We explore the use of continuous scanning during data acquisition for Bragg coherent diffraction imaging, i.e., where the sample is in continuous motion. The fidelity of continuous scanning Bragg coherent diffraction imaging is demonstrated
Externí odkaz:
https://doaj.org/article/c0860d45aeb747b5afb107f33b59caa6