研究目的
Investigating the mechanism of electrode reactions accompanying the cathodic polarization of the electrode in a copper lactate based electrolyte and analyzing anodic processes related to the oxidation of products formed during cathodic sweep.
研究成果
The study provides a detailed analysis of the electrode reactions in the alkaline copper(II) lactate system, identifying the mechanisms of Cu2O formation and oxidation. The results indicate the potential for controlling the composition of Cu2O and composite Cu-Cu2O films through electrode potential manipulation. The findings contribute to the understanding of Cu2O electrodeposition mechanisms and could inform the development of more efficient synthesis methods for Cu2O-based materials.
研究不足
The study focuses on the alkaline copper(II) lactate system, and the findings may not be directly applicable to other systems or conditions. The experimental conditions, such as temperature and scan rate, were fixed, which might limit the understanding of the system's behavior under varying conditions.
1:Experimental Design and Method Selection:
The study involved electrochemical tests in an electrolyte containing
2:4 M Cu2+ and 3 M of lactic acid, adjusted to pH 5 with NaOH. Electrogravimetric tests were performed in a standard three-electrode electrochemical cell with a gold-sputtered quartz crystal as the working electrode, a leakless Ag/AgCl electrode as a reference, and a platinum gauze electrode as a counter electrode. Sample Selection and Data Sources:
The electrolyte composition and conditions were selected based on previous studies to ensure the formation of Cu2O films.
3:List of Experimental Equipment and Materials:
BioLogic Sp-200 potentiostat/galvanostat equipped with a Seiko (QCM922A) electrochemical quartz crystal microbalance (EQCM), Panalytical Empyrean diffractometer for XRD analysis.
4:Experimental Procedures and Operational Workflow:
Measurements were performed at ambient temperature with a scan rate of 40 mV s?
5:Cyclic voltammograms were recorded in different electrochemical windows. Data Analysis Methods:
The analysis involved interpreting voltammograms and electrogravimetric curves to identify the sequence and mechanisms of electrode reactions.
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