Porous Graphitic Carbons Containing Nitrogen by Structuration of Chitosan with Pluronic P123.

ABSTRACT: Using Pluronic P123 as a structure-directing agent and chitosan as a carbon precursor, different porous carbons with remarkable morphologies such as orthohedra or spheres with diametrically opposite holes are obtained. These particles of micrometric size are constituted by the stacking of thin sheets (60 nm) that become increasingly bent in the opposite sense, concave in the upper and convex in the bottom hemispheres, as the chitosan proportion increases. TEM images, after dispersion of the particles by sonication, show that besides micrometric graphene sheets, the material is constituted by nanometric onion-like carbons. The morphology and structure of these porous carbons can be explained based on the ability of Pluronic P123 to undergo self-assembly in aqueous solution due to its amphot

SUBMITTER: Peng L 

PROVIDER: S-EPMC8528379 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature