One-step synthesis of nitrogen-decorated CeO₂/reduced graphene oxide nanocomposite and its electrocatalytic activity for triiodide/iodide reduction

Abstract

Abstract

One-Step Microwave-Assisted Synthesis of PtNiCo/rGO Electrocatalysts with High Electrochemical Performance for Direct Methanol Fuel Cells

“…This is attributed to the fact that the presence of Ni and Co can mitigate Pt poisoning, resulting in the higher electrochemical activity of PtNiCo/rGO [69,70]. From the Raman spectrum, PtNiCo/rGO 200 has the highest I D /I G intensity, meaning that a greater degree of composite PtNiCo and rGO, which will also enhance the electrocatalytic activity [71]. The results show that PtNiCo/rGO 200 has the highest catalytic activity and mass activity in these synthesized catalysts.…”

Recent advances in graphene-based materials for dye-sensitized solar cell fabrication

“…Recently, N-rGO, 199 aniline (AN)-rGO, and nitrobenzene (NB)-rGO 200 counter electrodes have also been used to fabricate DSSCs, which exhibited PCEs of 4.26, 6.10 and 7.11%, respectively, which were comparable to the Pt control devices, and outperformed the undoped rGO-based DSSCs, demonstrating the signicance of doping in enhancing the device performance. Wei et al 201 also prepared cerium dioxide (CeO 2 )/N-rGO nanocomposites, and applied them as counter electrodes in DSSCs, which exhibited a PCE of 3.20%, as compared to 2.45 and 1.37% for CeO 2 /rGO and rGO-based devices, respectively. This was ascribed to the better electrocatalytic activity of the CeO 2 /N-rGO composite, than rGO and CeO 2 /rGO, due to the synergistic effect of N and CeO 2 on rGO.…”