Electron beam induced synthesis of Ru-rGO and its super capacitive behavior
| dc.contributor.author | Saykar N.G. | |
| dc.contributor.author | Phatangare A. | |
| dc.contributor.author | Banerjee I. | |
| dc.contributor.author | Bhoraskar V.N. | |
| dc.contributor.author | Ray A.K. | |
| dc.contributor.author | Mahapatra S.K. | |
| dc.date.accessioned | 2020-01-31T11:33:55Z | |
| dc.date.accessioned | 2024-08-13T12:44:21Z | |
| dc.date.available | 2020-01-31T11:33:55Z | |
| dc.date.available | 2024-08-13T12:44:21Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | We report an in situ synthesis of ruthenium-reduced graphene oxide (Ru-rGO) using 6 MeV electron beam assisted radiolytic reduction method and its supercapacitive behavior. X-ray diffraction (XRD), transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) explore Ru nanoparticles of size ?2 nm are decorated on rGO sheets. Raman spectroscopy shows I D/I G ratio increased and formation of bilayer rGO after electron beam irradiation. The defect density in Ru-rGO is increased due to the electron beam irradiation as compared to its counterpart GO. The Ru-rGO based supercapacitor exhibits specific capacitance (128.1 ± 5.59) F g-1 at 10 mV s-1 scan rate. The specific capacitance retention of Ru-rGO is up to 99.4% at 900 cycles while it increases to 130% at 5000 cycles. Discharge curve of the supercapacitor involves three current decay processes viz. activation polarization, ohmic polarization and concentration polarization. The highest energy density of (4.125 ± 0.19) W h kg-1 and power density of 1.44 kW kg-1 are achieved with Ru-rGO supercapacitor. This unique electron beam assisted techniques illustrates a promising method of the fabrication of high performance supercapacitor. | en_US |
| dc.identifier.doi | 10.1088/2053-1583/ab3304 | |
| dc.identifier.issn | 20531583 | |
| dc.identifier.uri | http://10.2.3.109/handle/32116/2522 | |
| dc.language.iso | en | en_US |
| dc.publisher | IOP Publishing Ltd | en_US |
| dc.subject | electron beam irradiation | en_US |
| dc.subject | Ru-rGO | en_US |
| dc.subject | supercapacitor | en_US |
| dc.title | Electron beam induced synthesis of Ru-rGO and its super capacitive behavior | en_US |
| dc.title.journal | 2D Materials | en_US |
| dc.type | Article | en_US |
| dc.type.accesstype | Closed Access | en_US |