Zobrazeno 1 - 10
of 89
pro vyhledávání: '"J A van Bokhoven"'
Autor:
A. A. Guda, S. A. Guda, A. Martini, A. N. Kravtsova, A. Algasov, A. Bugaev, S. P. Kubrin, L. V. Guda, P. Šot, J. A. van Bokhoven, C. Copéret, A. V. Soldatov
Publikováno v:
npj Computational Materials, Vol 7, Iss 1, Pp 1-13 (2021)
Abstract X-ray absorption near-edge structure (XANES) spectra are the fingerprint of the local atomic and electronic structures around the absorbing atom. However, the quantitative analysis of these spectra is not straightforward. Even with the most
Externí odkaz:
https://doaj.org/article/08b96f9931b64ca9a7c59fb2cb51b471
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Transition metals are at the basis of key processes in chemistry and biology but their complex electronic structures make understanding of their properties a challenge. Here the authors resolve individual spectral lines of Cu2 in the deep UV region b
Externí odkaz:
https://doaj.org/article/6886b76a0ff54cc1a28e4fdd8ec07f51
Autor:
J. Ihli, R. R. Jacob, M. Holler, M. Guizar-Sicairos, A. Diaz, J. C. da Silva, D. Ferreira Sanchez, F. Krumeich, D. Grolimund, M. Taddei, W. -C. Cheng, Y. Shu, A. Menzel, J. A. van Bokhoven
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
Catalyst deactivation in fluid catalytic cracking processes is unavoidably associated with structural changes. Here, the authors visualize the deactivation of zeolite catalysts by ptychography and other imaging techniques, showing pronounced amorphiz
Externí odkaz:
https://doaj.org/article/fec92940d49d4c39ad4a966fd0f93516
Publikováno v:
Science, 376 (6596)
The dynamic interactions between noble metal particles and reducible metal-oxide supports can depend on redox reactions with ambient gases. Transmission electron microscopy revealed that the strong metal-support interaction (SMSI)–induced encapsula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69edd97f35599bddeafd482ce656a1e5
https://pubmed.ncbi.nlm.nih.gov/35617409
https://pubmed.ncbi.nlm.nih.gov/35617409
Publikováno v:
Microscopy and Microanalysis. 28:152-153
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a45a3ba7c0e4d14c4721ac0b2e66ec47
https://doi.org/10.1017/s1431927622001507
https://doi.org/10.1017/s1431927622001507
Autor:
J. Szlachetko, C. J. Milne, J. Hoszowska, J.-Cl. Dousse, W. Błachucki, J. Sà, Y. Kayser, M. Messerschmidt, R. Abela, S. Boutet, C. David, G. Williams, M. Pajek, B. D. Patterson, G. Smolentsev, J. A. van Bokhoven, M. Nachtegaal
Publikováno v:
Structural Dynamics, Vol 1, Iss 2, Pp 021101-021101-8 (2014)
Physical, biological, and chemical transformations are initiated by changes in the electronic configuration of the species involved. These electronic changes occur on the timescales of attoseconds (10−18 s) to femtoseconds (10−15 s) and drive
Externí odkaz:
https://doaj.org/article/1ae181accb8d4616838c81f0b3d9cfc2
Autor:
R. Tschaggelar, Vadim V. Semashko, Stella L. Korableva, Cristina Paun, Airat Kiiamov, R. M. Rakhmatullin, Alexander Rodionov, J. A. van Bokhoven
Publikováno v:
Materials Chemistry and Physics. 219:251-257
The electron paramagnetic resonance of Ce3+ ions in ceria is a rather controversial issue. In this report we analyze the EPR line with g ∼1.97 in the absorption spectra of ceria powders, which has been assigned in many studies to Ce3+ ions. Such an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57eb16f9a68b96761b8abc3110960478
https://doi.org/10.1016/j.matchemphys.2018.08.028
https://doi.org/10.1016/j.matchemphys.2018.08.028
Autor:
J. A. van Bokhoven, Simon A. Kondrat
Publikováno v:
Topics in Catalysis. 62:1218-1227
Identification of active sites and phases in heterogeneous catalysts and the understanding of the reaction mechanism remain highly challenging. In most catalysts, the existence of a multitude of surface species, which are dynamic in relation to react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f22c834db25a98d0d4bd1da710e0c6d
https://doi.org/10.1007/s11244-018-1057-4
https://doi.org/10.1007/s11244-018-1057-4
Autor:
Ali Mansouri, Selmi Erim Bozbag, Frank Krumeich, L. I. van der Wal, Vitaly L. Sushkevich, Marco Ranocchiari, J. A. van Bokhoven, Patrick Tomkins
Publikováno v:
Chemical Science
Chemical Science, 10 (1)
Chemical Science, 10 (1)
PtCu- and PdCu–mordenite allow for isothermal reaction at 200 °C for the stepwise methane to methanol conversion with comparably high yields. In contrast to traditional Cu-zeolites, these materials are more reactive under isothermal conditions tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86c18885b85dc73dfeacff81d3b960c2
http://europepmc.org/articles/PMC6330690
http://europepmc.org/articles/PMC6330690
Publikováno v:
The Journal of Physical Chemistry A. 121:8448-8452
The available knowledge of the electronically excited states of the copper dimer is limited. This is common for transition metals, as the high density of states hinders both experimental assignment and computation. In this work, two-color resonant fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9d5590c873b3ddbe2edb6c9dcbfff4
https://doi.org/10.1021/acs.jpca.7b09838
https://doi.org/10.1021/acs.jpca.7b09838