C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/02 (2006.01)
Patent
CA 2619065
Methods for manufacturing carbon nanostractures include: 1) forming a plurality of catalytic templating particles using a plurality of dispersing agent molecules; 2) forming an intermediate carbon nanostructure by polymerizing a carbon precursor in the presence of the plurality of templating nanoparticles; 3) carbonizing the intermediate carbon nanostructure to form a composite nanostructure; and 4) removing the templating nanoparticles from the composite nanostructure to yield the carbon nanostructures. The carbon nanostructures are well-suited for use as a catalyst support. The carbon nanostructures exhibit high surface area, high porosity, and high graphitization. Carbon nanostructures according to the invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.
L'invention porte sur des procédés de fabrication de nanostructures de carbone comportant les étapes suivantes: 1) formation de particules catalytiques modèles à l'aide de molécules d'agents dispersants; 2) formation d'une nanostructure de carbone intermédiaire en polymérisant un précurseur de carbone en présence de nanoparticules modèles; 3) carbonisation de la nanostructure de carbone intermédiaire pour former une nanostructure composite; et 4) extraction des nanoparticules modèles des nanostructures composites pour obtenir la nanostructure de carbone. Les nanostructures de carbone, bien adaptées en tant que supports de catalyseur présentent une surface active élevée, une forte porosité et un fort taux de graphitisation. Par ailleurs les nanostructures de carbone de l'invention peuvent servir de substituts aux nanotubes de carbone plus chers et plus fragiles.
Fransoon Martin
Liu Changkun
Zhang Cheng
Zhou Bing
Cassan Maclean
Headwaters Technology Innovation Llc
LandOfFree
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