Lee, Soon PohSoon PohLeeAli, Gomaa A.M.Gomaa A.M.AliAssiri, Mohammed A.Mohammed A.AssiriKIEN-VOON KONGTeo, Ellie Yi LihEllie Yi LihTeoChong, Kwok FengKwok FengChong2023-06-282023-06-282023-03-1501694332https://scholars.lib.ntu.edu.tw/handle/123456789/633161This study utilizes light adsorbing molecule, phenothiazine (PTZ) to reduce graphene oxide (GO) and functionalize into PTZ-rGO aerogel (PTZ-rGO). The UV excited PTZ reduces GO via electron transfer while PTZ is simultaneously oxidized and functionalized onto rGO to produce PTZ-rGO aerogel. The optimum incorporation of PTZ on rGO sheets renders good electrochemical active surface area of 495.71 m2 g−1 and enhances the diffusion behavior up to 41.92%. This pseudocapacitive effect and the excellent surface property provide promising charge storage results of 235.5 F g−1 at 0.5 A g−1. Furthermore, the stable charge-discharge cycles with 92% capacitance retention after 10,000 cycles render it an excellent electrode material for supercapacitor fabrication.enFunctionalization | Graphene aerogel | Phenothiazine | Pseudocapacitive | Supercapacitor[SDGs]SDG7journal article10.1016/j.apsusc.2022.1560692-s2.0-85144498375https://api.elsevier.com/content/abstract/scopus_id/85144498375