Zobrazeno 1 - 10
of 575
pro vyhledávání: '"O, Willi"'
Autor:
Thaylan Pinheiro Araújo, Georgios Giannakakis, Jordi Morales-Vidal, Mikhail Agrachev, Zaira Ruiz-Bernal, Phil Preikschas, Tangsheng Zou, Frank Krumeich, Patrik O. Willi, Wendelin J. Stark, Robert N. Grass, Gunnar Jeschke, Sharon Mitchell, Núria López, Javier Pérez-Ramírez
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-15 (2024)
Abstract Metal promotion could unlock high performance in zinc-zirconium catalysts, ZnZrO x , for CO2 hydrogenation to methanol. Still, with most efforts devoted to costly palladium, the optimal metal choice and necessary atomic-level architecture re
Externí odkaz:
https://doaj.org/article/770b9e8a62e3405dbf1407218b3cacda
Autor:
Thaylan Pinheiro Araújo, Cecilia Mondelli, Mikhail Agrachev, Tangsheng Zou, Patrik O. Willi, Konstantin M. Engel, Robert N. Grass, Wendelin J. Stark, Olga V. Safonova, Gunnar Jeschke, Sharon Mitchell, Javier Pérez-Ramírez
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Assembling multicomponent catalysts to harness synergic effects is challenging. Now, flame spray pyrolysis permits the synthesis of ternary Pd-In2O3-ZrO2 catalysts with an optimal architecture and an enriched density of oxygen vacancies for maximal p
Externí odkaz:
https://doaj.org/article/0366960835a242e8b2bc644bb760d722
Publikováno v:
CHIMIA, Vol 76, Iss 10 (2022)
At the remote International Chemistry Olympiad 2022 hosted by China, two outstanding students from Switzerland won one bronze medal and one honorable mention. A joint remote participation to the event of the delegations from Germany, Austria, and Swi
Externí odkaz:
https://doaj.org/article/cf5f101adb554c36a7dd98992b79e53f
Autor:
G. Revet, B. Khiar, E. Filippov, C. Argiroffi, J. Béard, R. Bonito, M. Cerchez, S. N. Chen, T. Gangolf, D. P. Higginson, A. Mignone, B. Olmi, M. Ouillé, S. N. Ryazantsev, I. Yu. Skobelev, M. I. Safronova, M. Starodubtsev, T. Vinci, O. Willi, S. Pikuz, S. Orlando, A. Ciardi, J. Fuchs
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Mass outflow is a common process in astrophysical objects. Here the authors investigate in which conditions an astrophysically-scaled laser-produced plasma flow can be collimated and evolves in the presence of a misaligned external magnetic field.
Externí odkaz:
https://doaj.org/article/7479f49d56194ccfa56e217115c14ed8
Autor:
S Ferguson, P Martin, H Ahmed, E Aktan, M Alanazi, M Cerchez, D Doria, J S Green, B Greenwood, B Odlozilik, O Willi, M Borghesi, S Kar
Publikováno v:
New Journal of Physics, Vol 25, Iss 1, p 013006 (2023)
Helical coil accelerators are a recent development in laser-driven ion production, acting on the intrinsically wide divergence and broadband energy spectrum of laser-accelerated protons to deliver ultra-low divergence and quasi-monoenergetic beams. T
Externí odkaz:
https://doaj.org/article/4b2e912d1b4b4fcda5133c301f0a1bb1
Autor:
J. Ehlert, M. Piel, F. Boege, M. Cerchez, R. Haas, G. E. Iliakis, R. Prasad, O. Willi, C. Monzel
Publikováno v:
AIP Advances, Vol 11, Iss 6, Pp 065208-065208-9 (2021)
An experimental platform was designed to study the effects of laser accelerated protons (LAPs) on mammalian cells. The protons, in the MeV energy range, originate from the rear side of a thin 5 µm Ti foil target following the interaction with a high
Externí odkaz:
https://doaj.org/article/4170fd38c8ad40778596731d49e3c96d
Autor:
B Aurand, L Reichwein, K M Schwind, E Aktan, M Cerchez, V Kaymak, L Lessmann, R Prasad, J Thomas, T Toncian, A Khoukaz, A Pukhov, O Willi
Publikováno v:
New Journal of Physics, Vol 24, Iss 3, p 033006 (2022)
We study the laser-driven acceleration of electrons from overdense hydrogen clusters to energies of up to 13 MeV in laser forward direction and several hundreds of keV in an outer ring-structure. The use of cryogenic hydrogen allows for high repetiti
Externí odkaz:
https://doaj.org/article/9c46af4c3dbf44519b516c847bf982f2
Autor:
S. Bolaños, J. Béard, G. Revet, S. N. Chen, S. Pikuz, E. Filippov, M. Safronova, M. Cerchez, O. Willi, M. Starodubtsev, J. Fuchs
Publikováno v:
Matter and Radiation at Extremes, Vol 4, Iss 4, Pp 044401-044401-8 (2019)
Laser irradiation of solid targets can drive short and high-charge relativistic electron bunches over micron-scale acceleration gradients. However, for a long time, this technique was not considered a viable means of electron acceleration due to th
Externí odkaz:
https://doaj.org/article/75ecb4ed96bb48e1a2f4a21717c0e2b9
Autor:
Thaylan Pinheiro Araújo, Jordi Morales‐Vidal, Tangsheng Zou, Mikhail Agrachev, Simon Verstraeten, Patrik O. Willi, Robert N. Grass, Gunnar Jeschke, Sharon Mitchell, Núria López, Javier Pérez‐Ramírez
Publikováno v:
Advanced Energy Materials. 13
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6660024b14be0fe17bc306d4aecc7a63
https://doi.org/10.1002/aenm.202370052
https://doi.org/10.1002/aenm.202370052
Autor:
B Aurand, KM Schwind, T Toncian, E Aktan, M Cerchez, L Lessmann, C Mannweiler, R Prasad, A Khoukaz, O Willi
Publikováno v:
New Journal of Physics, Vol 22, Iss 3, p 033025 (2020)
We present a study on laser-driven proton acceleration from a hydrogen cluster target. Aiming for the optimisation of the proton source, we performed a detailed parametric scan of the interaction conditions by varying different laser and the target p
Externí odkaz:
https://doaj.org/article/40effae7bd5c46a68c1c78adaeb7bc6f