Zobrazeno 1 - 10
of 1 651
pro vyhledávání: '"A. Hettler"'
We explore the possibility to perform an in situ transmission electron microscopy (TEM) thermoelectric characterization of materials. A differential heating element on a custom in situ TEM microchip allows to generate a temperature gradient across th
Externí odkaz:
http://arxiv.org/abs/2404.19366
Publikováno v:
Adv. Mater. Interfaces 2024, 2400317
Layered CoO$_2$ is of great interest for its promising properties but is meta-stable in its bulk form. CoO$_2$ was synthesized by converting the quasi-one-dimensional crystal structure of bulk Ca$_3$Co$_2$O$_6$ via a hydrothermal treatment. The resul
Externí odkaz:
http://arxiv.org/abs/2309.14533
Publikováno v:
Small Methods, 202400034 (2024)
Although in-situ transmission electron microscopy (TEM) of nanomaterials has been gaining importance in recent years, difficulties in sample preparation have limited the number of studies on electrical properties. Here, a support-based preparation me
Externí odkaz:
http://arxiv.org/abs/2309.14060
Autor:
Pandey, Satakshi, Hettler, Simon, Arenal, Raul, Bouillet, Corinne, Moghe, Aditi Raman, Berciaud, Stephane, Robert, Jerome, Dayen, Jean Francois, Halley, David
We show that thin layers of EuO, a ferromagnetic insulator, can be achieved by topotactic reduction under titanium of a Eu2O3 film deposited on top of a graphene template. The reduction process leads to the formation of a 7-nm thick EuO smooth layer,
Externí odkaz:
http://arxiv.org/abs/2309.00892
Autor:
Nuñez, Jorge M., Hettler, Simon, Lima Jr., Enio, Goya, Gerardo. F., Arenal, Raul, Zysler, Roberto D., Aguirre, Myriam H., Winkler, Elin L.
The control of the magnetization inversion dynamics is one of the main challenges driving the design of new nanostructured magnetic materials for magnetoelectronic applications. Nanoparticles with onion-like architecture offer a unique opportunity to
Externí odkaz:
http://arxiv.org/abs/2306.13108
Publikováno v:
Advanced Materials Interfaces, Vol 11, Iss 31, Pp n/a-n/a (2024)
Abstract Layered CoO2 is of great interest for its promising properties but is meta‐stable in its bulk form. CoO2 is synthesized by converting the quasi‐1D crystal structure of bulk Ca3Co2O6 via a hydrothermal treatment. The resulting nanostructu
Externí odkaz:
https://doaj.org/article/cf2d00d563da4e1d8d81e142a6cbdb15
Publikováno v:
Pediatric Exercise Science; Nov2024, Vol. 36 Issue 4, p211-223, 13p
Autor:
Bar-Hen, Avraham, Hettler, Simon, Ramasubramaniam, Ashwin, Arenal, Raul, Ziv, Ronen Bar, Sadan, Maya Bar
Publikováno v:
Journal of Energy Chemistry 74, 481-488 (2022)
Designing electrocatalysts for HER in alkaline conditions to overcome the sluggish kinetics associated with the additional water dissociation step is a recognized challenge in promoting the hydrogen economy. To this end, delicately tuning the atomic-
Externí odkaz:
http://arxiv.org/abs/2209.04557
Autor:
Simon Hettler, Raul Arenal
Publikováno v:
Carbon Trends, Vol 15, Iss , Pp 100348- (2024)
In-situ transmission electron microscopy has evolved to be a unique technique to study process dynamics down to the atomic scale. Here, we show that in-situ Joule heating of carbon nanofilms facilitates the investigation of the nucleation, annealing,
Externí odkaz:
https://doaj.org/article/27be48b578554fe0af7888fe5856403d
Autor:
Landspersky, Theresa, Stein, Merle, Saçma, Mehmet, Geuder, Johanna, Braitsch, Krischan, Rivière, Jennifer, Hettler, Franziska, Romero Marquez, Sandra, Vilne, Baiba, Hameister, Erik, Richter, Daniel, Schönhals, Emely, Tuckermann, Jan, Verbeek, Mareike, Herhaus, Peter, Hecker, Judith S., Bassermann, Florian, Götze, Katharina S., Enard, Wolfgang, Geiger, Hartmut, Oostendorp, Robert A. J., Schreck, Christina
Publikováno v:
In Blood Advances 22 October 2024 8(20):5400-5414