Metal Nanoparticle-Supported Carbon Prepared by a One-pot Process in Ionic Liquid
January 4, 2021
A technique for supporting nanoparticles onto any carbon material with high-density and high-dispersion
Key Word : Uniform dispersion, catalyst, nano particle
Background / Context / Abstract:
It is necessary to use two steps (1. Preparing step of metal nanoparticles, 2. Nanoparticles supporting step on carbon) for the conventional methods for supporting metal nanoparticles on the surface of carbon. Furthermore, it is extremely difficult to support the metal nanoparticles on specific carbons, which don’t have a functional group on their surface and are chemically inactive. (e.g. carbon nanotube)
This technology can be applied to metal or alloy nanoparticles which are supported onto any carbon materials with high-density and high-dispersion. These metal nanoparticles are prepared by one-pot process in which the carbon substrate and metal ion are added into an ion liquid and heated to reduce the metal ion. In particular, oxygen-reducing catalyst for solid polymer electrolyte fuel cell is acceptable to synthesise at high-quantity more easily and inexpensively than conventional methods.
・This one-pot process allows for high-quantity synthesis of metal nanoparticle supported carbon without a dispersant.
・This method can be applied to chemically inactive carbon materials (e.g. carbon nanotube) without any pretreatment process.
・This process can synthesise a metal nanoparticle (e.g. Ni) which can’t be synthesised by a liquid-phase method.
Potential Applications / Potential Markets:
Possibility to produce catalysts for fuel cells with high metal density & dispersion
State of Development / Opportunity / Seeking:
・Available for exclusive and non-exclusive licensing
・Exclusive/non-exclusive evaluation for defined period (set up for options)
WO2017/034029A1 (Issued: JP, National phase EP, US) Issued: Taiwan
(Left) Pt-Ni nanoparticle supported multiwalled carbon nanotube using this technology
(Center) Pt-Ni nanoparticle supported graphene using this technology
(Right) Pt-Ni nanoparticle supported carbon black (Vulcan®) using this technology