Study of green reductant effects of highly reduced graphene oxide production and their characteristics

Abstract

The study of the green reductant effects to produce reduced graphene oxide (rGO) has been completed successfully. The reduction of graphene oxide (GO) was carried out chemically using various reductants such as ascorbic acid (rGO-AA), gallic acid (rGO-AG), and trisodium citrate (rGO-NS). The GO was prepared using the Tour method at a temperature of 65 ? for 6 hours with potassium permanganate: graphite weight ratio 1:3.5. The results showed that rGO-AA had the highest electrical conductivity value of 755.70 S/m, with characteristics such as a surface area of 255.93 m2/g, a pore volume of 0.61 cm3/g, an average pore diameter of 7.10 nm, ID/IG ratio of 1.93, and three graphene layers in the material nanostructure stack. Therefore, it can be concluded that the reduction of GO with ascorbic acid (rGO-AA) is the most effective in producing rGO.

Iron phthalocyanine integrated with boron-doped reduced graphene oxide for highly selective four-electron oxygen reduction: an experimental study

“…The low surface area of RGO and their composites may be attributed to the hydrothermal treatment, which may decrease the number of functional groups and consequently an increase in pi-pi stacking may occur, leading to a decrease in the BET surface area. 27 After the immobilization of FePc on RGO and B-RGO, the BET-surface area is decreased in FePc@RGO and FePc@B-RGO when compared to RGO and B-RGO, respectively. Since FePc@RGO and FePc@B-RGO show almost the same surface area, the electrocatalytic properties of these materials cannot be influenced based on the surface area.…”