In this study, a new graphene ceramic composite (GCC) was prepared based on the reduced grapheneoxide (rGO) doped in sol-gel derived silica. The GCC was prepared by dispersing rGO nanosheets intothe sol-gel precursors containing methyl triethoxysilane, methanol and hydrochloric acid solution.During an acid catalyzed hydrolyze reaction and gelation proc...

The advent of novel organic and inorganic nanomaterials in recent years, particularly nanostructured carbons, conducting polymers, and metal oxides, has enabled the fabrication of various energy devices with enhanced performance. In this paper, we review in detail different nanomaterials used in the fabrication of electrochemical capacitor electrodes and also give a brief overview of electric d...

A method for concentrating dissolved ions is presented which, in combination with current x-ray fluorescence methods, can yield limits of detection in the low to mid part-per-billion range. This method relies upon the fundamental principles of capacitive deionization, where an electrical double-layer capacitor is used to temporarily capture dissolved ions in a semi-selective manner. The efficie...

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