Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis
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Tasić, Gvozden S.Maslovara, Slađana Lj.
Žugić, Dragana
Maksić, Aleksandar
Marčeta Kaninski, Milica
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Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-Mo catalysts obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are around 120 mV and exchange current densities are close to 10(-2) mA cm(-2) (three orders of magnitude higher compared to the bulk Ni). moreover, formed deposit possess high stability during prolonged electrolysis. Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation, the apparent electrochemical surface and the stability of in situ formed Ni-Mo catalyst. Results suggest to significant catalytic performance not only from the increase of the real surface area of electrodes, but also from the true catalytic ef...fect. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Keywords:
Electrolysis / Hydrogen / Catalysis / Ionic activators / EIS / Tafel analysisSource:
International Journal of Hydrogen Energy, 2011, 36, 18, 11588-11595Funding / projects:
DOI: 10.1016/j.ijhydene.2011.06.081
ISSN: 0360-3199
WoS: 000294982800011
Scopus: 2-s2.0-80052148653
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VinčaTY - JOUR AU - Tasić, Gvozden S. AU - Maslovara, Slađana Lj. AU - Žugić, Dragana AU - Maksić, Aleksandar AU - Marčeta Kaninski, Milica PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4488 AB - Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-Mo catalysts obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are around 120 mV and exchange current densities are close to 10(-2) mA cm(-2) (three orders of magnitude higher compared to the bulk Ni). moreover, formed deposit possess high stability during prolonged electrolysis. Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation, the apparent electrochemical surface and the stability of in situ formed Ni-Mo catalyst. Results suggest to significant catalytic performance not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. T2 - International Journal of Hydrogen Energy T1 - Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis VL - 36 IS - 18 SP - 11588 EP - 11595 DO - 10.1016/j.ijhydene.2011.06.081 ER -
@article{ author = "Tasić, Gvozden S. and Maslovara, Slađana Lj. and Žugić, Dragana and Maksić, Aleksandar and Marčeta Kaninski, Milica", year = "2011", abstract = "Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-Mo catalysts obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are around 120 mV and exchange current densities are close to 10(-2) mA cm(-2) (three orders of magnitude higher compared to the bulk Ni). moreover, formed deposit possess high stability during prolonged electrolysis. Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation, the apparent electrochemical surface and the stability of in situ formed Ni-Mo catalyst. Results suggest to significant catalytic performance not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.", journal = "International Journal of Hydrogen Energy", title = "Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis", volume = "36", number = "18", pages = "11588-11595", doi = "10.1016/j.ijhydene.2011.06.081" }
Tasić, G. S., Maslovara, S. Lj., Žugić, D., Maksić, A.,& Marčeta Kaninski, M.. (2011). Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis. in International Journal of Hydrogen Energy, 36(18), 11588-11595. https://doi.org/10.1016/j.ijhydene.2011.06.081
Tasić GS, Maslovara SL, Žugić D, Maksić A, Marčeta Kaninski M. Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis. in International Journal of Hydrogen Energy. 2011;36(18):11588-11595. doi:10.1016/j.ijhydene.2011.06.081 .
Tasić, Gvozden S., Maslovara, Slađana Lj., Žugić, Dragana, Maksić, Aleksandar, Marčeta Kaninski, Milica, "Characterization of the Ni-Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis" in International Journal of Hydrogen Energy, 36, no. 18 (2011):11588-11595, https://doi.org/10.1016/j.ijhydene.2011.06.081 . .