Category Archives: Energy Storage

In situ decoration of laser-scribed graphene with TiO2 nanoparticles for scalable high-performance micro-supercapacitors

Graphene-based miniaturized supercapacitors, obtained via laser conversion of suitable precursors, have been attracting recent attention for the production of energy storage small-scale devices. In this work, a one-pot synthesis of TiO2 nanoparticles embedded in porous graphene-based electrodes has been obtained with … Continue reading

Posted in Energy Storage, Graphene, Superconductivity | Leave a comment

Enhancing the performance of carbon electrodes in supercapacitors through medium-temperature fluoroalkylation

Medium-temperature fuoroalkylation of microporous activated carbons (ACs) with 1,1,1,2-tetrafuoroethane is presented. Supercapacitor (SC) electrodes based on the fuoroalkylated ACs showed enhanced specifc capacitance and high specific energy in electrolytes, either aqueous potassium hydroxide solution or tetraethylammonium tetrafuoroborate-acetonitrile solution. We found … Continue reading

Posted in Energy Storage, Supercapacitors | Leave a comment

Nickel addition to optimize the hydrogen storage performance of lithium intercalated fullerides

The addition of transition metals to alkali intercalated fullerides proved to enhance their already good hydrogen absorption properties. Herein we present a study based on two different synthetic strategies, allowing the addition of nickel as aggregates with different size to … Continue reading

Posted in Catalysis, Energy Storage, Fullerenes, Hydrogen Storage | Leave a comment

Neutron scattering study of nickel decorated thermally exfoliated graphite oxide

Surface decoration of graphene-based nanostructures with metals has been predicted to be an efficient way towards the development of resistant catalysts and novel materials for energy applications, such as hydrogen production and storage. We report on an extensive neutron scattering … Continue reading

Posted in Energy Storage, Graphene, Hydrogen Storage | Leave a comment

Degassing and phase transitions with temperature in melanophlogite

Melanophlogite (type I clathrate) has a microporous framework of corner sharing SiO4 tetrahedra, which can host guest gases. Here, a multi–analytical approach has been employed to understand the phase transitions with temperature and the degassing behaviour of a melanophlogite sample, which … Continue reading

Posted in Crystallography, Energy Storage | Leave a comment

Super-activated biochar from poultry litter for high-performance supercapacitors

We report on the preparation of a novel hierarchically-porous super-activated carbon originating from organic waste with specific surface area exceeding 3000 m2/g, obtained starting from biochar derived by the pyrolysis of poultry litter. The chemical activation process proved to be efficient … Continue reading

Posted in Energy Storage, Graphene, Supercapacitors | Leave a comment

Electrochemical intercalation of fullerene and hydrofullerene with sodium

We report on the ability of fullerene C60 and hydrogenated fullerene C60Hx (x∼39) to operate as negative electrodes in novel Na-ion batteries. Building upon the known solubility of C60 in common organic electrolytes used in batteries, we developed a suitably … Continue reading

Posted in Batteries, Energy Storage, Fullerenes | Leave a comment

Extending the hydrogen storage limit in fullerene

Li6C60 has been chosen as the most representative system to study the hydrogenation mechanism in alkali-cluster intercalated fullerides. We present a muon spin relaxation (μSR) experiment that hints the chance to achieve a higher storage capacity on fullerene with respect … Continue reading

Posted in Energy Storage, Fullerenes, Hydrogen Storage | Leave a comment

Molecular and Ionic Dynamics in NaxLi6−xC60

We report on the C60, Na, and Li dynamics in NaxLi6−xC60 fullerides (x = 0, 1, 5, and 6) in the temperature range  80−550 K by using 13C, 23Na, and 7Li solid state NMR. The results show that the C60 … Continue reading

Posted in Batteries, Energy Storage, Fullerenes | Leave a comment