Structure and Properties of Platinum, Gold and Mercury Nanowires Grown in Superfluid Helium.
Webs consisting of nanowires made of gold, platinum and mercury were produced by the technique based on laser ablation of metals inside superfluid helium. Their morphology and structure as well as their electrical conductivity have been studied. Diameters of gold and platinum nanowires are 4.5 and 3 nm, respectively. Fortunately, they are close to diameters of nanospheres made of these metals, which, as known from the literature, possess anomalous catalytic activity. Web resistivities for all metals up to room temperature are controlled by conductive electron scattering on a wire surface, thus they are almost independent of T. Nanowires in the webs are electrically interconnected, and therefore the web can be used as a catalyst without any support. Possible advantages of this type of nanocatalyst are outlined.
†Institute of Problems of Chemical Physics RAS, Academician Semenov avenue, 1, 142432, Chernogolovka, Moscow Region, Russian Federation.
Eugene B
EB
Gordon
‡National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse, 31, 115409, Moscow, Russian Federation.
Alexander V
AV
Karabulin
‡National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse, 31, 115409, Moscow, Russian Federation.
Andrey A
AA
Morozov
§Institute of Energy Problems of Chemical Physics RAS, Academician Semenov avenue, 1/10, 142432, Chernogolovka, Moscow Region, Russian Federation.
Vladimir I
VI
Matyushenko
§Institute of Energy Problems of Chemical Physics RAS, Academician Semenov avenue, 1/10, 142432, Chernogolovka, Moscow Region, Russian Federation.
Vyacheslav D
VD
Sizov
∥Institute of Microelectronics Technology and High Purity Materials RAS, Institutskaya Street, 6, 142432, Chernogolovka, Moscow Region, Russian Federation.
Igor I
II
Khodos
catalysis by metal nanoparticles; gold; platinum and mercury nanowires