Accurate tuning of ordered nanotubular platinum electrodes by galvanic plating

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Roscher V, Licklederer M, Schumacher J, Rios GR, Hoffmann B, Christiansen S, Bachmann J
Zeitschrift: Dalton Transactions
Verlag: Royal Society of Chemistry
Jahr der Veröffentlichung: 2014
Band: 43
Seitenbereich: 4345-4350
ISSN: 1477-9226
eISSN: 1477-9234


Abstract


Platinum nanotubes are created by galvanic deposition inside porous templates. The effects of the electrolyte's ion concentration and pH, of the applied potential and of the deposition duration on the morphology of the tubes are investigated systematically. The system provides a model electrode platform with accurately tunable geometry for the fundamental investigation of electrochemical transformations. For slow electrochemical reactions, we observe a linear increase of the galvanic current with the length of the nanotubes, and therefore with the specific surface area of the electrode. In contrast to this, inherently fast electrochemical transformations are diffusion-limited and give rise to the same current density independently of the geometry. These results delineate a strategy for optimizing the performance of electrochemical energy conversion devices systematically via nanostructuring the electrode surfaces.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bachmann, Julien Prof.
Lehrstuhl für Chemistry of thin film materials
Licklederer, Markus
Lehrstuhl für Anorganische und Allgemeine Chemie


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


Einrichtungen weiterer Autorinnen und Autoren

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Universität Hamburg


Forschungsbereiche

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials
C Photonic and Optical Materials
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Roscher, V., Licklederer, M., Schumacher, J., Rios, G.R., Hoffmann, B., Christiansen, S., & Bachmann, J. (2014). Accurate tuning of ordered nanotubular platinum electrodes by galvanic plating. Dalton Transactions, 43, 4345-4350. https://dx.doi.org/10.1039/c3dt52608a

MLA:
Roscher, Valentin, et al. "Accurate tuning of ordered nanotubular platinum electrodes by galvanic plating." Dalton Transactions 43 (2014): 4345-4350.

BibTeX: 

Zuletzt aktualisiert 2019-06-08 um 09:18