Accurate tuning of ordered nanotubular platinum electrodes by galvanic plating

Roscher V, Licklederer M, Schumacher J, Rios GR, Hoffmann B, Christiansen S, Bachmann J (2014)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Dalton Transactions Royal Society of Chemistry

Publisher: Royal Society of Chemistry

Book Volume: 43

Pages Range: 4345-4350

DOI: 10.1039/c3dt52608a

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.

Authors with CRIS profile

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

Additional Organisation(s)

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

Involved external institutions

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

How to cite

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://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.

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