Water dispersible surface-functionalized platinum/carbon nanorattles for size-selective catalysis
Hofer, Corinne J.
Grass, Robert N.
Schneider, Elia M.
Herzog, Antoine F.
Stark, Wendelin J.
- Journal Article
Rights / licenseCreative Commons Attribution 3.0 Unported
Selective dealloying of metal nanoparticles results in rattle-type hollow carbon nanoshells enclosing platinum nanoparticles, which are able to perform size-selective catalysis. Selective functionalization of the outer graphene-like carbon surface prevents agglomeration and leads to well dispersible nanocatalysts in aqueous solutions. The synthesis starts with the production of nanoparticles with a cobalt–platinum-alloy core surrounded by graphene-like carbon via reducing flame spray synthesis. After surface functionalization, simultaneous pore formation in the shell-wall and dissolution of the cobalt results in platinum encapsulated in hollow carbon nanospheres. Catalytic oxidation of differently sized sugars (glucose and maltoheptaose) reveales size-selective catalytic properties of these platinum nanorattles. Show more
Journal / seriesChemical Science
Pages / Article No.
PublisherRoyal Society of Chemistry
Organisational unit03512 - Günther, Detlef / Günther, Detlef
03673 - Stark, Wendelin J. / Stark, Wendelin J.
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