Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions.

ABSTRACT: Although traditionally high-surface area carbon materials have been considered as rigid structures with a disordered three dimensional (3D) network of graphite microdomains associated with a limited electrical conductivity (highly depending on the porous structure and surface chemistry), here we show for the first time that this is not the case for activated carbon materials prepared using harsh activation conditions (e.g., KOH activation). In these specific samples a clear structural re-orientation can be observed upon adsorption of different organic molecules, the structural changes giving rise to important changes in the electrical resistivity of the material. Whereas short chain hydrocarbons and their derivatives give rise to an increased resistivity, the contrary occurs for lon

SUBMITTER: Gomes Ferreira de Paula F 

PROVIDER: S-EPMC6632014 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature