Fullerene crystals with bimodal pore architectures

Fullerene crystals with bimodal pore architectures
Synthetic route of producing mesoporous crystalline fullerene using a liquid-liquid interface

A research group headed by MANA Scientist Dr. Lok Kumar Shrestha of the Supermolecules Unit, for the first time demonstrated template-free novel mesoporous carbon material: fullerene (C60) crystals with bimodal pore architectures and having highly crystallized framework. Experiments have proven that this novel meso- and macroporous material show better electrochemical performance compared to pristine C60 due to higher electrochemically active surface areas.

In this research, novel fullerene (C60) crystals with bimodal mesoporous and macroporous structures composed of a highly crystallized framework has prepared by using a liquid-liquid interfacial precipitation (LLIP) method involving the interface between isopropyl alcohol (IPA) and a of C60 in a mixture of benzene and (CCl4). The resulting mesoporous C60 exhibits two-dimensional (2D) hexagonal plate morphology.

Porosity and electrochemically active surface area could be flexibly controlled by increasing the mixing fraction of CCl4 and benzene. The synergistic effect of mixing solvents (CCl4 and benzene) is mainly responsible for the formation of such . Otherwise, in an individual IPA/CCl4 and IPA/benzene system, 2D plate like and 1D nanowhiskers morphology without pores are observed. In solution-based crystallization (LLIP method), solvent molecule gets entrapped during crystallization, which upon slow release/or evaporation creates a porous structure. It is expected that this methodological innovation will be a milestone for the production of highly crystalline carbon-based materials offering better performance in catalytic, electrochemical, and sensing properties.

These research results are recently published in Journal of American Chemical Society, 2013, 135, 586-589.


Explore further

Graphene decoupling of organic/inorganic interfaces

Citation: Fullerene crystals with bimodal pore architectures (2013, February 22) retrieved 26 June 2019 from https://phys.org/news/2013-02-fullerene-crystals-bimodal-pore-architectures.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more