Herein, we report a new methodology for the reduction of graphene oxide to chemically reduced graphene oxide using a common industrial reductant, thiourea dioxide. The final product has been fully characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning...
The recent surge in literature devoted to electrochemical synthesis of urea has been fuelled by the desperate need for both energy conservation and CO2fixation to mitigate climate change. As one of the most frequently used nitrogen fertilizers1,2, urea can be synthesized at the industrial level via...
A simple and effective preparation method for the simultaneous reduction and functionalization of graphene oxide (rGO) by 2,4-diamino benzene sulfonic acid has been developed. The derivatives exhibit excellent conductivity and high dispersibility in various solvents. The successful preparation of rGO and...
The introduction of graphene into the fiber structure greatly increases the electrical conductivity and specific surface area of the material. At the same time, Fe--N4 structure helps to form an effective catalytic center of ORR. Compared with Pt/C, it has similar catalytic activity in alkaline ...
One-pot synthesis of nitrogen and sulfur co-doped graphene as efficient metal-free electrocatalysts for the oxygen reduction reaction Novel N, S co-doped graphene (NSG) was prepared by annealing graphene oxide with thiourea as the single N and S precursor. The NSG electrodes, as efficient... ...
However, the reduction of fused iron oxide is markedly retarded when CO is present in the H2[2]. This is illustrated by the results shown in Table 4. The presence of only 2% CO in the H2 lowered the degree of reduction attained under set conditions by a factor of four. From ...
Metal nanoparticles have been widely used for catalysis because of its excellent catalytic activity and selectivity. Green and sustainable supports play a quite important role in the enhancement of the efficiency and recyclability of metal nanoparticles. Here, a cellulose/β-cyclodextrin hydrogel is appli...
Modulated electron conductivity (EC), p-n junction behavior and light-harvesting semiconductivity in reduced graphene oxide (rGO) is observed. Pristine graphene oxide (GO) film on borosilicate glass was reduced by ascorbic acid (AA), Glucose (GC), hydrogen iodide (HI), thiourea (TU), ...
In this work, we utilize a one-step pyrolysis method to thermally synthesize phosphorus (P), sulfur (S) and nitrogen (N) ternary-doped graphene (PSNG) using graphene oxide (GO), phosphoric acid and thiourea precursors as a low-cost and highly-efficient catalyst for the oxygen reduction ...
[31] reported a method to obtain different cobalt chalcogenide phases grown on N, S co-doped graphene oxide by annealing cobalt thiourea and graphene oxide under different temperatures. The prepared materials showed high catalytic activity and cycling stability for ORR and OER in alkaline medium. ...