Platinum-electroplated Cathode
Platinum-electroplated Cathode - Related Videos
07:58
Electroplating of Thin Films
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2023
Source: Logan G. Kiefer, Andrew R. Falkowski, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a thin coating on an electrode. Other thin film deposition techniques include chemical vapor deposition (CVD), spin coating, dip coating, and sputter deposition among others. CVD uses a gas-phase precursor of the element to be...
14:37
Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
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Cited by 7 •
2014
A method of fabricating, in ambient conditions, organic photovoltaic tandem devices in a parallel configuration is presented. These devices feature an air-processed, semi-transparent, carbon nanotube common cathode.
07:20
Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
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Cited by 1 •
2014
This protocol describes the use of amide coupling reactions of isonicotinic acid and diaminoalkanes to form bridging ligands suitable for use in the synthesis of multinuclear platinum complexes, which combine aspects of the anticancer drugs BBR3464 and picoplatin.
08:32
Electrochemical Roughening of Thin-Film Platinum Macro and Microelectrodes
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2019
This protocol demonstrates a method for electrochemical roughening of thin-film platinum electrodes without preferential dissolution at grain boundaries. The electrochemical techniques of cyclic voltammetry and impedance spectroscopy are demonstrated to characterize these electrode surfaces.
09:02
Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
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2018
The protocol describes the synthesis and electrochemical testing of platinum-nickel nanowires. Nanowires were synthesized by the galvanic displacement of a nickel nanowire template. Post-synthesis processing, including hydrogen annealing, acid leaching, and oxygen annealing were used to optimize nanowire performance and durability in the oxygen reduction reaction.
FAQs
The platinum surface provides active sites where reduction reactions can occur more effectively, including oxygen or proton reduction. These sites support the transfer of electrons to dissolved or surface-associated species, helping the cathode facilitate reactions required in environmental electrochemical systems. Improved catalytic performance can increase reaction efficiency without changing the broader treatment or monitoring process.
Environmental electrochemical systems often operate in chemically complex solutions that can degrade electrode materials. A platinum coating improves resistance to chemical corrosion, helping the cathode retain its functional surface during operation. Greater durability supports more stable electrode performance, reduces the need for maintenance, and makes the electrode more suitable for sustained water treatment, pollutant transformation, or sensing.
Applied current drives the electrochemical reduction of dissolved platinum ions at the cathode surface. As these ions are reduced, platinum forms a thin functional coating containing catalytic sites. The resulting surface combines the conductivity of the underlying electrode with platinum’s catalytic and corrosion-resistant properties, enabling subsequent reduction reactions in environmental electrochemical applications.
In water treatment systems, the coated cathode can facilitate reduction reactions that contribute to the transformation of substances in the water. Its catalytic surface may improve reaction efficiency, while corrosion resistance helps maintain performance in complex solutions. These characteristics make the electrode relevant to treatment designs intended to manage environmental contaminants through electrochemical processes.
They are useful when an electrochemical system must promote reduction reactions while operating in solutions that may challenge electrode stability. Platinum’s catalytic activity can support the conversion of pollutants, and its resistance to chemical corrosion helps preserve the working surface. The combination is relevant to environmental technologies focused on transforming contaminants rather than only detecting them.
In sensing systems, the catalytic surface can facilitate electrochemical reactions associated with environmental contaminants, supporting their monitoring. Stable performance is especially valuable when measurements occur in complex solutions, where corrosion could impair an electrode. By combining catalytic activity with durability, these cathodes can contribute to more reliable monitoring technologies and potentially reduce maintenance requirements.