High surface area carbon opals and inverse opals obtained therefrom
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., The Board of Trustees of the University of Illinois
InventorsKazuhisa Yano, Matthew Dave Goodman, Paul Vannest Braun
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Abstract
A self-assembled carbon structure such as a carbon opal is disclosed herein. The structure is composed of hydrophilic carbon spheres oriented in a periodic colloidal crystal structure, wherein the carbon spheres have a porous surface, wherein the carbons spheres have an average particle diameter less than 3000 nm. Also disclosed is an inverse opal structure that includes a plurality of voids in the structural material. The voids are regularly arranged in an ordered periodic structure, the voids having a spherical shape. The inverse opal structure has a specific surface area greater than 100 m2/g and method for making the same together with materials that employ the same.
Claims23
A self-assembled carbon structure comprising:
- functionalized monodispersed starburst carbon spheres (MSCS) oriented in a three-dimensional colloidal crystal, wherein the MSCS have a porous surface and a zeta potential of about −46 mV, wherein the carbons spheres have an average diameter less than 3000 nm.
A self-assembled carbon structure composed of comprising:
- monodispersed starburst carbon spheres (MSCS) oriented in a periodic colloidal crystal structure, wherein the carbon spheres have an average particle diameter less than 3000 nm, an average pore size between 1.0 nm and 10 nm, the MSCS having carbon-oxygen bonds present at a percentage of about 8% of combined carbon-oxygen and carbon-carbon bonds as determined by x-ray photoelectron spectroscopy.
Dependencies are inferred from the claim text.