A Hydrothermal Synthesis of Graphene Quantum Dots Modified Carbon Paste Electrode as an Efficient Electro Sensor Towards L-Ascorbic Acid

The tremendous electronic assets of graphene, with its charge carriers parroting relativistic graphene quantum dots and its potential in numerous applications, have ensured a hasty evolution of interest in this ground-breaking material. The graphene quantum dots, in the size range of 1-5 nm, showed 0 D morphology, which exists with few atomic layers of wideness and have zigzag edge structure. Herein, We report on electrochemical behaviour of graphene quantum dots modified electrode that hold edges and basal plane content, accelerated the anodic peak current with a sensitivity of about 0.68 mA mM–1 and offers 1.4 times higher sensitivity towards the oxidation of ascorbic acid.