Zobrazeno 1 - 10
of 306
pro vyhledávání: '"Arenal, Raúl"'
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:
Wei, Cencen, Roy, Abhijit, Aljarid, Adel K. A., Hu, Yi, Roe, S. Mark, Papageorgiou, Dimitrios G., Arenal, Raul, Boland, Conor S.
The sky is the limit with regards to the societal impact nanomaterials can have on our lives. However, in this study we show that their potential is out of this world. The planet Mars has an abundant source of calcium sulfate minerals and in our work
Externí odkaz:
http://arxiv.org/abs/2309.01560
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:
Journal of Physical Chemistry C 126, 14850 (2022)
Electrochemical reactions for hydrogen and hydrogen peroxide production are essential for energy conversion to diminish energy crisis, but still lack efficient electrocatalysts. Development of non\-noble metal bifunctional electrocatalysts for hydrog
Externí odkaz:
http://arxiv.org/abs/2305.00764
Autor:
Stavrou, Michalis, Chazapis, Nikolaos, Nikoli, Eleni, Arenal, Raul, Tagmatarchis, Nikos, Couris, Stelios
Publikováno v:
ACS Applied Nano Materials 5, 16674 (2022)
In the present work, some MoS2 and WS2 nanosheets were prepared and characterized. Depending on the preparation procedures, trigonal prismatic (2H) or octahedral (1T) coordination of the metal atoms were obtained, exhibiting metallic (1T) or semicond
Externí odkaz:
http://arxiv.org/abs/2305.00753
Autor:
Genç, Aziz, Patarroyo, Javier, Sancho-Parramon, Jordi, Arenal, Raul, Bastus, Neus G., Puntes, Victor, Arbiol, Jordi
Publikováno v:
Nanomaterials 2023, 13(6), 992
Morphological control at the nanoscale paves the way to fabricate nanostructures with desired plasmonic properties. We report the nanoengineering of plasmon resonances in 1D hollow nanostructures of two different AuAg nanotubes; completely hollow nan
Externí odkaz:
http://arxiv.org/abs/2301.11603
Autor:
Kumar, Amar, Hammad, Raheel, Pahuja, Mansi, Arenal, Raul, Ghosh, Kaushik, Ghosh, Soumya, Narayanan, Tharangattu N.
Photo-rechargeable (solar) battery can be considered as an energy harvesting cum storage system, where it can charge the conventional metal-ion battery using light instead of electricity, without having other parasitic reactions. Here we demonstrate
Externí odkaz:
http://arxiv.org/abs/2301.06155