An electrolytic bath containing silver(I), cobalt(II) and different complexing agents to electrodeposit Co-Ag coatings over vitreous carbon and silicon/seed-layer substrates is proposed. In situ electrochemical characterization of thin deposits is performed by means of stripping (potentiodynamic or galvanostatic) methods. These techniques allow detecting the heterogeneous codeposition of cobalt and silver. Electrochemical ex situ methods (polarographic and voltammetric methods) are implemented to quantify the silver and cobalt percentage in the coatings. Optimal analytical parameters for voltammetric method are established.
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http://dx.doi.org/10.1016/j.aca.2007.09.040 | DOI Listing |
ACS Appl Mater Interfaces
December 2022
Institute of Physical and Theoretical Chemistry, University of Bonn, Bonn53117, Germany.
Developing earth-abundant, cost-effective, and active bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is key to boosting sustainable energy systems such as electrolyzers and lithium-air batteries. However, the performance of promising cobalt-based materials is impaired by the external effects of binders and carbon additives as well as inhomogeneous electrode fabrication. In this work, binder- and carbon-free flower-like Co-decorated Ag catalytic nanosheets were in situ-synthesized via a simple electrodeposition approach.
View Article and Find Full Text PDFAnal Chim Acta
October 2007
Electrodep. Departament Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 1. 08028 Barcelona, Spain.
An electrolytic bath containing silver(I), cobalt(II) and different complexing agents to electrodeposit Co-Ag coatings over vitreous carbon and silicon/seed-layer substrates is proposed. In situ electrochemical characterization of thin deposits is performed by means of stripping (potentiodynamic or galvanostatic) methods. These techniques allow detecting the heterogeneous codeposition of cobalt and silver.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!