Low Au-content CoAu electrodes for environmental applications
Аутори
Radinović, KristinaMilikić, Jadranka
Balčiūnaitė, Aldona
Sukackienė, Zita
Bošković, Marko
Tamašauskaitė-Tamašiūnaitė, Loreta
Šljukić, Biljana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
electrodes / acidИзвор:
RSC Advances, 2022, 12, 40, 26134-26146Издавач:
- Royal Society of Chemistry
Финансирање / пројекти:
- The European Social Fund under Measure No. 09.3.3-LMT-K-712-19-0138
DOI: 10.1039/d2ra04828k
ISSN: 2046-2069
PubMed: 36275101
WoS: 000854648800001
Scopus: 2-s2.0-85139878976
Институција/група
IHTMTY - JOUR AU - Radinović, Kristina AU - Milikić, Jadranka AU - Balčiūnaitė, Aldona AU - Sukackienė, Zita AU - Bošković, Marko AU - Tamašauskaitė-Tamašiūnaitė, Loreta AU - Šljukić, Biljana PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5394 AB - 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. PB - Royal Society of Chemistry T2 - RSC Advances T1 - Low Au-content CoAu electrodes for environmental applications VL - 12 IS - 40 SP - 26134 EP - 26146 DO - 10.1039/d2ra04828k ER -
@article{ author = "Radinović, Kristina and Milikić, Jadranka and Balčiūnaitė, Aldona and Sukackienė, Zita and Bošković, Marko and Tamašauskaitė-Tamašiūnaitė, Loreta and Šljukić, Biljana", year = "2022", 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.", publisher = "Royal Society of Chemistry", journal = "RSC Advances", title = "Low Au-content CoAu electrodes for environmental applications", volume = "12", number = "40", pages = "26134-26146", doi = "10.1039/d2ra04828k" }
Radinović, K., Milikić, J., Balčiūnaitė, A., Sukackienė, Z., Bošković, M., Tamašauskaitė-Tamašiūnaitė, L.,& Šljukić, B.. (2022). Low Au-content CoAu electrodes for environmental applications. in RSC Advances Royal Society of Chemistry., 12(40), 26134-26146. https://doi.org/10.1039/d2ra04828k
Radinović K, Milikić J, Balčiūnaitė A, Sukackienė Z, Bošković M, Tamašauskaitė-Tamašiūnaitė L, Šljukić B. Low Au-content CoAu electrodes for environmental applications. in RSC Advances. 2022;12(40):26134-26146. doi:10.1039/d2ra04828k .
Radinović, Kristina, Milikić, Jadranka, Balčiūnaitė, Aldona, Sukackienė, Zita, Bošković, Marko, Tamašauskaitė-Tamašiūnaitė, Loreta, Šljukić, Biljana, "Low Au-content CoAu electrodes for environmental applications" in RSC Advances, 12, no. 40 (2022):26134-26146, https://doi.org/10.1039/d2ra04828k . .