Fullerene crystals with bimodal pore architectures

Feb 22, 2013
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: Demystifying nanocrystal solar cells

add to favorites email to friend print save as pdf

Related Stories

Graphene decoupling of organic/inorganic interfaces

Jun 19, 2012

(Phys.org) -- Cryogenic ultrahigh vacuum scanning tunneling microscopy (STM) was employed by researchers in the Center for Nanoscale Materials Electronic & Magnetic Materials & Devices Group at the Argonne ...

The search for new materials for hydrogen storage

Sep 20, 2012

(Phys.org)—Hydrogen is the ideal fuel for new types of fuel cell vehicles, but one problem is how to store hydrogen. In his doctoral dissertation Serhiy Luzan studies new types of materials for hydrogen ...

Recommended for you

Demystifying nanocrystal solar cells

Jan 28, 2015

ETH researchers have developed a comprehensive model to explain how electrons flow inside new types of solar cells made of tiny crystals. The model allows for a better understanding of such cells and may ...

Researchers use oxides to flip graphene conductivity

Jan 26, 2015

Graphene, a one-atom thick lattice of carbon atoms, is often touted as a revolutionary material that will take the place of silicon at the heart of electronics. The unmatched speed at which it can move electrons, ...

Researchers make magnetic graphene

Jan 26, 2015

Graphene, a one-atom thick sheet of carbon atoms arranged in a hexagonal lattice, has many desirable properties. Magnetism alas is not one of them. Magnetism can be induced in graphene by doping it with magnetic ...

The latest fashion: Graphene edges can be tailor-made

Jan 23, 2015

Theoretical physicists at Rice University are living on the edge as they study the astounding properties of graphene. In a new study, they figure out how researchers can fracture graphene nanoribbons to get ...

Nanotechnology changes behavior of materials

Jan 23, 2015

One of the reasons solar cells are not used more widely is cost—the materials used to make them most efficient are expensive. Engineers are exploring ways to print solar cells from inks, but the devices ...

User comments : 0

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

Click here to reset your password.
Sign in to get notified via email when new comments are made.