Weidler, Natascha ; Schuch, Jona ; Knaus, Florian ; Stenner, Patrick ; Hoch, Sascha ; Maljusch, Artjom ; Schaefer, Rolf ; Kaiser, Bernhard ; Jaegermann, Wolfram (2017)
X-ray Photoelectron Spectroscopic Investigation of of Plasma-Enhanced Chemical Vapor Deposited NiOx, NiOx(OH)y and CoNiOx(OH)y: Influence of the Chemical Composition on the Catalytic Activity for the Oxygen Evolution Reaction.
In: The Journal of Physical Chemistry C, 121 (12)
doi: 10.1021/acs.jpcc.6b12652
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report here the plasma-enhanced chemical vapor deposition and electrocatalytic characterization of pure NiOx and NiOx(OH)y. Whereas NiOx is deposited if oxygen is used as a reactive gas, the use of air as a reactive gas leads to the deposition of the NiOx(OH)y, which is electrochemically more active than the NiOx. By recording X-ray photoelectron spectra from the as-deposited catalysts and after their electrochemical investigations, we determined that the electrochemical activity correlates with the amount of hydroxide sites on the surface. Such a behavior was already observed for CoOx and CoOx(OH)y. As a consequence, CoNiOx(OH)y was deposited using air as a reactive gas to study the influence of nickel on the electronic structure of CoOx(OH)y and its effect on the electrochemical activity.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Weidler, Natascha ; Schuch, Jona ; Knaus, Florian ; Stenner, Patrick ; Hoch, Sascha ; Maljusch, Artjom ; Schaefer, Rolf ; Kaiser, Bernhard ; Jaegermann, Wolfram |
| Art des Eintrags: | Bibliographie |
| Titel: | X-ray Photoelectron Spectroscopic Investigation of of Plasma-Enhanced Chemical Vapor Deposited NiOx, NiOx(OH)y and CoNiOx(OH)y: Influence of the Chemical Composition on the Catalytic Activity for the Oxygen Evolution Reaction |
| Sprache: | Englisch |
| Publikationsjahr: | 23 Februar 2017 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | The Journal of Physical Chemistry C |
| Jahrgang/Volume einer Zeitschrift: | 121 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1021/acs.jpcc.6b12652 |
| URL / URN: | http://doi.org/10.1021/acs.jpcc.6b12652 |
| Kurzbeschreibung (Abstract): | We report here the plasma-enhanced chemical vapor deposition and electrocatalytic characterization of pure NiOx and NiOx(OH)y. Whereas NiOx is deposited if oxygen is used as a reactive gas, the use of air as a reactive gas leads to the deposition of the NiOx(OH)y, which is electrochemically more active than the NiOx. By recording X-ray photoelectron spectra from the as-deposited catalysts and after their electrochemical investigations, we determined that the electrochemical activity correlates with the amount of hydroxide sites on the surface. Such a behavior was already observed for CoOx and CoOx(OH)y. As a consequence, CoNiOx(OH)y was deposited using air as a reactive gas to study the influence of nickel on the electronic structure of CoOx(OH)y and its effect on the electrochemical activity. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie 07 Fachbereich Chemie > Computational Physical Chemistry |
| Hinterlegungsdatum: | 19 Mär 2017 12:32 |
| Letzte Änderung: | 15 Jul 2020 09:08 |
| PPN: | |
| Sponsoren: | The authors thanks Evonik for the financial support., Part of this work was financed by the German federal Ministry of Education and Research within the Project SusHy and by the Graduate School of Excellence Energy Science and Engineering. |
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