8 research outputs found
The Interactions of Thiophene with Polycrystalline UO2
See abstract in the article attachedJRC.E.6-Actinides researc
Adsorption and Reaction of SO2 with a Polycrystalline UO2 Film: Promotion of S-O Bond Cleavage by Creation of O-Defects and Na or Ca Coadsorption
see attachmentJRC.E.6-Actinides researc
Rational design of reduced graphene oxide for superior performance of supercapacitor electrodes
Strategies to synthesize reduced graphene oxide (rGO) abound but, in most studies, research teams select one particular oxidation-reduction method without providing a methodic reasoning for doing so. Herein, it is analyzed how diverse oxidation-reduction strategies commonly used can result in considerable performance differences of rGO for supercapacitor applications. Depending on the graphite oxidation method followed, the surface chemistry analysis of the products confirms that there is a marked disparity in the degree of oxidation and the nature of the oxygen functional groups present. Subsequent reduction of the oxidized graphite (using three different methods) showed that the maximum specific capacitance of rGOs produced from the classical Hummers' method was 128 F gâ1 whereas an analogous material obtained from an improved Hummers' method reached âŒ274 F gâ1 (both via an hydrothermal reduction route). Besides showing that the improved oxidation method results in superior capacitance performance, explained by the higher number of structural defects allied to a surface chemistry where residual hydroxyl and epoxy functional groups predominate, this study highlights the need to rationalize the oxidation-reduction strategies followed when investigating applications of rGO materials
The Interactions of Thiophene with Polycrystalline UO2.
Abstract not availableJRC.E-Institute for Transuranium Elements (Karlsruhe
A combined experimental and theoretical study of the photophysical performance of SrTaO<sub>2</sub>N thin films
International audienc