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Low Au-content CoAu electrodes for environmental applications
dc.creator | Radinović, Kristina | |
dc.creator | Milikić, Jadranka | |
dc.creator | Balčiūnaitė, Aldona | |
dc.creator | Sukackienė, Zita | |
dc.creator | Bošković, Marko | |
dc.creator | Tamašauskaitė-Tamašiūnaitė, Loreta | |
dc.creator | Šljukić, Biljana | |
dc.date.accessioned | 2022-11-15T20:05:17Z | |
dc.date.available | 2022-11-15T20:05:17Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2046-2069 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/5394 | |
dc.description.abstract | Six cobalt gold (CoAu) electrodes were prepared by electroless deposition using different gold-containing solutions (acidic and weakly acidic) and different Au deposition times. Characterization of CoAu electrodes was done by scanning electron microscopy with energy-dispersive X-ray spectroscopy, N2-sorption, and X-ray powder diffraction techniques. The possibility of using the prepared electrodes in environmental applications, i.e., for the electrochemical sensing of a trace amount of arsenic(iii) in weakly alkaline media was assessed. Employing the CoAu electrode (prepared by immersing Co/Cu into 1 mM HAuCl4 (pH 1.8) at 30 °C for 30 s) under optimized conditions (deposition potential −0.7 V and deposition time of 60 s), a low limit of detection of 2.16 ppb was obtained. Finally, this CoAu electrode showed activity for arsenic oxidation in the presence of Cu(ii) as a model interferent as well as in real samples. Furthermore, the use of CoAu electrode as an anode in fuel cells, namely, direct borohydride - hydrogen peroxide fuel cells was also assessed. A peak power density of 191 mW cm−2 was attained at 25 °C for DBHPFC with CoAu anode at a current density of 201 mA cm−2 and cell voltage of 0.95 V, respectively. The peak power density further increased with the increase of the operating temperature to 55 °C. | sr |
dc.language.iso | en | sr |
dc.publisher | Royal Society of Chemistry | sr |
dc.relation | The European Social Fund under Measure No. 09.3.3-LMT-K-712-19-0138 | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | RSC Advances | sr |
dc.subject | electrodes | sr |
dc.subject | acid | sr |
dc.title | Low Au-content CoAu electrodes for environmental applications | sr |
dc.type | article | sr |
dc.rights.license | BY | sr |
dc.citation.volume | 12 | |
dc.citation.issue | 40 | |
dc.citation.spage | 26134 | |
dc.citation.epage | 26146 | |
dc.citation.rank | M22~ | |
dc.identifier.pmid | 36275101 | |
dc.identifier.doi | 10.1039/d2ra04828k | |
dc.identifier.fulltext | http://cer.ihtm.bg.ac.rs/bitstream/id/22866/bitstream_22866.pdf | |
dc.identifier.scopus | 2-s2.0-85139878976 | |
dc.identifier.wos | 000854648800001 | |
dc.type.version | publishedVersion | sr |