Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids
Само за регистроване кориснике
2022
Аутори
Zdolšek, NikolaVujković, Milica
Metin, Önder
Brković, Snežana
Jocić, Ana
Dimitrijević, Aleksandra
Trtić-Petrović, Tatjana M.
Šljukić, Biljana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Development of cost-effective, bi-functional carbon electrocatalysts via direct carbonization of ionic liquids (bis(cholinium) tetrachlorocobaltate(II) ([Ch]2[CoCl4]) and bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate(II) ([Bmim]2[CoCl4])) is reported herein for the first time. Carbon electrocatalysts, dual-doped with cobalt and nitrogen, were tested for oxygen reduction (ORR) and oxygen evolution (OER) reactions. Both materials show high bi-functional catalytic activity and excellent stability due to synergistic effects arising from the presence of nitrogen and cobalt. Electrocatalyst prepared by carbonization of [Ch]2[CoCl4] show exceptional activity and selectivity toward ORR. Conversely, electrocatalyst prepared from [Bmim]2[CoCl4] showed a slightly better OER performance indicating that different catalytic sites are responsible for O2 reduction and H2O oxidation. Parent CoO particles with graphitic nitrogen boost activity for ORR, while elemental Co supported by nitrogen at...oms is responsible for OER activity. Finally, energy consumption during electrolytic oxygen production was calculated revealing energy saving when using two materials as anode electrocatalysts.
Кључне речи:
Doped carbon materials / Ionic liquids / Oxygen evolution reaction / Oxygen reduction reactionИзвор:
International Journal of Hydrogen Energy, 2022, 47, 33, 14847-14858Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-200017)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200146 (Универзитет у Београду, Факултет за физичку хемију) (RS-200146)
- HiSuperBat - High-Capacity Electrodes for Aqueous Rechargeable Multivalent-Ion Batteries and Supercapacitors: Next Step Towards a Hybrid Model (RS-6062667)
- Fundacao para a Ciencia e a Tecnologia [Contract no. IST-ID/156e2018]
DOI: 10.1016/j.ijhydene.2022.02.225
ISSN: 0360-3199
WoS: 00079352280000
Scopus: 2-s2.0-85127337669
Колекције
Институција/група
VinčaTY - JOUR AU - Zdolšek, Nikola AU - Vujković, Milica AU - Metin, Önder AU - Brković, Snežana AU - Jocić, Ana AU - Dimitrijević, Aleksandra AU - Trtić-Petrović, Tatjana M. AU - Šljukić, Biljana PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10229 AB - Development of cost-effective, bi-functional carbon electrocatalysts via direct carbonization of ionic liquids (bis(cholinium) tetrachlorocobaltate(II) ([Ch]2[CoCl4]) and bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate(II) ([Bmim]2[CoCl4])) is reported herein for the first time. Carbon electrocatalysts, dual-doped with cobalt and nitrogen, were tested for oxygen reduction (ORR) and oxygen evolution (OER) reactions. Both materials show high bi-functional catalytic activity and excellent stability due to synergistic effects arising from the presence of nitrogen and cobalt. Electrocatalyst prepared by carbonization of [Ch]2[CoCl4] show exceptional activity and selectivity toward ORR. Conversely, electrocatalyst prepared from [Bmim]2[CoCl4] showed a slightly better OER performance indicating that different catalytic sites are responsible for O2 reduction and H2O oxidation. Parent CoO particles with graphitic nitrogen boost activity for ORR, while elemental Co supported by nitrogen atoms is responsible for OER activity. Finally, energy consumption during electrolytic oxygen production was calculated revealing energy saving when using two materials as anode electrocatalysts. T2 - International Journal of Hydrogen Energy T1 - Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids VL - 47 IS - 33 SP - 14847 EP - 14858 DO - 10.1016/j.ijhydene.2022.02.225 ER -
@article{ author = "Zdolšek, Nikola and Vujković, Milica and Metin, Önder and Brković, Snežana and Jocić, Ana and Dimitrijević, Aleksandra and Trtić-Petrović, Tatjana M. and Šljukić, Biljana", year = "2022", abstract = "Development of cost-effective, bi-functional carbon electrocatalysts via direct carbonization of ionic liquids (bis(cholinium) tetrachlorocobaltate(II) ([Ch]2[CoCl4]) and bis(1-butyl-3-methylimidazolium) tetrachlorocobaltate(II) ([Bmim]2[CoCl4])) is reported herein for the first time. Carbon electrocatalysts, dual-doped with cobalt and nitrogen, were tested for oxygen reduction (ORR) and oxygen evolution (OER) reactions. Both materials show high bi-functional catalytic activity and excellent stability due to synergistic effects arising from the presence of nitrogen and cobalt. Electrocatalyst prepared by carbonization of [Ch]2[CoCl4] show exceptional activity and selectivity toward ORR. Conversely, electrocatalyst prepared from [Bmim]2[CoCl4] showed a slightly better OER performance indicating that different catalytic sites are responsible for O2 reduction and H2O oxidation. Parent CoO particles with graphitic nitrogen boost activity for ORR, while elemental Co supported by nitrogen atoms is responsible for OER activity. Finally, energy consumption during electrolytic oxygen production was calculated revealing energy saving when using two materials as anode electrocatalysts.", journal = "International Journal of Hydrogen Energy", title = "Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids", volume = "47", number = "33", pages = "14847-14858", doi = "10.1016/j.ijhydene.2022.02.225" }
Zdolšek, N., Vujković, M., Metin, Ö., Brković, S., Jocić, A., Dimitrijević, A., Trtić-Petrović, T. M.,& Šljukić, B.. (2022). Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids. in International Journal of Hydrogen Energy, 47(33), 14847-14858. https://doi.org/10.1016/j.ijhydene.2022.02.225
Zdolšek N, Vujković M, Metin Ö, Brković S, Jocić A, Dimitrijević A, Trtić-Petrović TM, Šljukić B. Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids. in International Journal of Hydrogen Energy. 2022;47(33):14847-14858. doi:10.1016/j.ijhydene.2022.02.225 .
Zdolšek, Nikola, Vujković, Milica, Metin, Önder, Brković, Snežana, Jocić, Ana, Dimitrijević, Aleksandra, Trtić-Petrović, Tatjana M., Šljukić, Biljana, "Boosting electrocatalysis of oxygen reduction and evolution reactions with cost-effective cobalt and nitrogen-doped carbons prepared by simple carbonization of ionic liquids" in International Journal of Hydrogen Energy, 47, no. 33 (2022):14847-14858, https://doi.org/10.1016/j.ijhydene.2022.02.225 . .