Green synthesis of carbon-supported nanoparticle catalysts by physical vapor deposition on soluble powder substrates

Title
Green synthesis of carbon-supported nanoparticle catalysts by physical vapor deposition on soluble powder substrates
Authors
박희영장인준정남기정영훈류재윤차인영김형준장종현유성종
Keywords
carbon-supported nanoparticle catalysts; physical vapor deposition; fuel cell; Green synthesis
Issue Date
2015-09
Publisher
Scientific Reports
Citation
VOL 5, 14245-1-14245-7
Abstract
Metal and metal oxide nanoparticles (NPs) supported on high surface area carbon (NP/Cs) were prepared by the physical vapor deposition of bulk materials on an α-D-glucose (Glu) substrate, followed by the deposition of the NPs on carbon supports. Using Glu as a carrier for the transport of NPs from the bulk materials to the carbon support surfaces, ultrafine NPs were obtained, exhibiting a stabilizing effect through OH moieties on the Glu surfaces. This stabilizing effect was strong enough to stabilize the NPs, but weak enough to not significantly block the metal surfaces. As only the target materials and Glu are required in our procedure, it can be considered environmentally friendly, with the NPs being devoid of hazardous chemicals. Furthermore, the resulting NP/Cs exhibited an improvement in activity for various electrochemical reactions, mainly attributed to their high surface area.
URI
http://pubs.kist.re.kr/handle/201004/50316
ISSN
20452322
Appears in Collections:
KIST Publication > Article
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