Oxidation of Au/Ag films by oxygen plasma: phase separation and generation of nanoporosity

Autor: Abdel-Aziz El Mel, Said A. Mansour, Mujaheed Pasha, Atef Zekri, Janarthanan Ponraj, Akshath Shetty, Yousef Haik

Publikováno v: Beilstein Journal of Nanotechnology, Vol 11, Iss 1, Pp 1608-1614 (2020)

The oxidation of Au/Ag alloy thin films using radio-frequency oxygen plasma was studied in this work. It was demonstrated that there is a phase separation occurring between silver and gold. In addition, it was shown that the preferential oxidation of

Externí odkaz: https://doaj.org/article/52209f2cf69b41308d9f6af6306c3286

Dealloying of gold–copper alloy nanowires: From hillocks to ring-shaped nanopores

Autor: Adrien Chauvin, Cyril Delacôte, Mohammed Boujtita, Benoit Angleraud, Junjun Ding, Chang-Hwan Choi, Pierre-Yves Tessier, Abdel-Aziz El Mel

Publikováno v: Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 1361-1367 (2016)

We report on a novel fabrication approach of metal nanowires with complex surface. Taking advantage of nodular growth triggered by the presence of surface defects created intentionally on the substrate as well as the high tilt angle between the magne

Externí odkaz: https://doaj.org/article/62220d8c457b4db3a74b965eb2848334

Highly ordered ultralong magnetic nanowires wrapped in stacked graphene layers

Autor: Abdel-Aziz El Mel, Jean-Luc Duvail, Eric Gautron, Wei Xu, Chang-Hwan Choi, Benoit Angleraud, Agnès Granier, Pierre-Yves Tessier

Publikováno v: Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 846-851 (2012)

We report on the synthesis and magnetic characterization of ultralong (1 cm) arrays of highly ordered coaxial nanowires with nickel cores and graphene stacking shells (also known as metal-filled carbon nanotubes). Carbon-containing nickel nanowires a

Externí odkaz: https://doaj.org/article/9ce286a371c3425ea050a125ecfb5a1b

Co-sputtering of gold and copper onto liquids: a route towards the production of porous gold nanoparticles

Autor: Stephanos Konstantinidis, Abdel-Aziz El Mel, Milan Dopita, Jérôme Cornil, Cinthia Antunes Corrêa, Adrien Chauvin, David Cornil, Pierre-Yves Tessier, Anna Fucikova, Elen Duverger-Nédellec, Anastasiya P. Sergievskaya, J. Vesely

Publikováno v: Nanotechnology
Nanotechnology, Institute of Physics, 2020, 31 (45), pp.455303. ⟨10.1088/1361-6528/abaa75⟩

Effective methods for the synthesis of high-purity nanoparticles (NPs) have been extensively studied for a few decades. Among others, cold plasma-based sputtering metals onto a liquid substrate appears to be a very promising technique for the synthes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b18354e97ff8341bfb3e25b2aceb2931
https://hal.archives-ouvertes.fr/hal-03011795

Lamellar nanoporous gold thin films with tunable porosity for ultrasensitive SERS detection in liquid and gas phase

Autor: Reyes Mallada, Adrien Chauvin, Maria Pilar Pina, Abdel-Aziz El Mel, Bernard Humbert, Pierre-Yves Tessier, Marta Lafuente, Jean Yves Mevellec

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Nanoscale
Nanoscale, Royal Society of Chemistry, 2020, 12 (23), pp.12602-12612. ⟨10.1039/d0nr01721c⟩

Lamellar nanoporous gold thin films, constituted of a stack of very thin layers of porous gold, are synthesized by chemical etching from a stack of successively deposited nanolayers of copper and gold. The gold ligament size, the pore size and the di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6eecee3f80b170f9c7dbeef8e70c065
http://hdl.handle.net/10261/218988