Приказ основних података о документу
Ultra-thin layers of iridium electrodeposited on Ti2AlC support as cost effective catalysts for hydrogen production by water electrolysis
dc.creator | Elezović, Nevenka R. | |
dc.creator | Branković, Goran | |
dc.creator | Zabinski, P. | |
dc.creator | Marzec, M. | |
dc.creator | Jović, Vladimir D | |
dc.date.accessioned | 2022-04-05T15:26:46Z | |
dc.date.available | 2022-04-05T15:26:46Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 1572-6657 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/1325 | |
dc.description.abstract | The hydrogen evolution reaction (HER) was investigated in 0.5 M H2SO4 at thin iridium layers electrodeposited on Ti2AlC substrate. Five samples, varying in thickness from 4.5 nm to 255 nm, were electrodeposited from the solution containing K3IrCl6 + Na2SO4. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were applied for morphology and chemical composition analysis. Metallic iridium was detected by X-ray photoelectron spectroscopy (XPS). The HER was investigated by polarization and electrochemical impedance spectroscopy (EIS) measurements. Polarization curves were characterized with the low Tafel slopes -18 mV dec(-1), while at higher current densities increased up to -56 mV dec(-1). The overpotential at j = -0.1 A cm(-2) was-45 mV, while at j = -0.01 A cm(-2) varied from 25.1 mV to 36.1 mV. These novel catalysts exhibited excellent activity, especially under industrial conditions of hydrogen production (j = -0.3 A cm(-2)) the determined overpotentials were between 66 and 69 mV only. | en |
dc.publisher | Elsevier Science Sa, Lausanne | |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200053/RS// | |
dc.rights | restrictedAccess | |
dc.source | Journal of Electroanalytical Chemistry | |
dc.subject | Iridium layers | en |
dc.subject | Hydrogen evolution reaction | en |
dc.subject | Electrodeposition | en |
dc.subject | Acid solution | en |
dc.title | Ultra-thin layers of iridium electrodeposited on Ti2AlC support as cost effective catalysts for hydrogen production by water electrolysis | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.other | 878: - | |
dc.citation.rank | M21 | |
dc.citation.volume | 878 | |
dc.identifier.doi | 10.1016/j.jelechem.2020.114575 | |
dc.identifier.scopus | 2-s2.0-85089574406 | |
dc.identifier.wos | 000593969800003 | |
dc.type.version | publishedVersion |