We report a simple, green and cost-effective approach to synthesize high-quality reduced graphene oxide/chitosan composites for determining flubendiamide. Graphene oxide was obtained by electrochemical exfoliation of pencil using DC supply system.

A tale of two electrodes: The environmentally friendly K2SO4 electrolyte was employed to facilitate dual electrochemical exfoliation graphite electrodes produce graphene. Two graphene materials with distinct differences in oxidation degree and defect density were obtained.

Flexible and ultratransparent conductors based on graphene sheets have been considered as one promising candidate for replacing currently used indium tin oxide films that are unlikely to satisfy future needs due to their increasing cost and losses in conductivity on bending. Here we demonstrate a simple and fast electrochemical method to exfoliate graphite into thin graphene sheets, mainly AB-s...

Abstract Petroleum coke is a solid, carbonaceous by-product of oil refining and normally used for heating or as an anode in aluminum steel production. These applications contribute to carbon emissions, but here we show that petroleum has another potential avenue: precursor graphene This path presents environmentally economically sustainable use low-value industrial stream. Electrochemical exfol...

Few-layer graphene has been prepared by electrochemical intercalation of graphite cathode using Na/ dimethyl sulfoxide complexes as intercalation agent. By adding thionin acetate salt into the electrolyte, the exfoliated graphite is stabilized and further exfoliated into few-layer graphene. Raman and X-ray photoelectron spectra indicate that the graphene material has lower content of defects an...

There are two categories in the graphene preparations which top-down and bottom-up methods. Top-down methods consist of mechanical exfoliation, chemical exfoliation synthesis reduction. Meanwhile, vapor deposition (CVD), pyrolysis epitaxial growth under Graphene has its own limitation unsuitable for certain applications. Thus, functionalizing with selected molecules nanomaterials may result fun...

Molybdenum disulfide (MoS2) with the two-dimensional layered structure has been widely studied as an advanced catalyst for hydrogen evolution reaction (HER). Intercalating guest species into the van der Waals gaps of MoS2 has been demonstrated as an effective approach to tune the electronic structure and consequently improve the HER catalytic activity. In this work, by constructing nanostructur...