Journal ArticleDOI
Note: Design and fabrication of a simple versatile microelectrochemical cell and its accessories.
TLDR
A microelectrochemical cell housed in an optical microscope and custom-made accessories have been designed and fabricated, which allows performing spatially resolved corrosion measurements, and is demonstrated by studying μ-Electrochemical behavior of worn surface on AA2014-T6 alloy.Abstract:
A microelectrochemical cell housed in an optical microscope and custom-made accessories have been designed and fabricated, which allows performing spatially resolved corrosion measurements. The cell assembly was designed to directly integrate the reference electrode close to the capillary tip to avoid air bubbles. A hard disk along with an old optical microscope was re-engineered into a microgrinder, which made the vertical grinding of glass capillary tips very easy. A stepper motor was customized into a microsyringe pump to dispense a controlled volume of electrolyte through the capillary. A force sensitive resistor was used to achieve constant wetting area. The functionality of the developed instrument is demonstrated by studying μ-electrochemical behavior of worn surface on AA2014-T6 alloy.read more
Citations
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Hydrogel-based flexible micro-reference electrodes for use in alkaline and neutral pH solutions
TL;DR: In this article, two types of non-breakable, flexible micro-reference electrodes filled with gel-electrolytes were prepared for use in solutions with alkaline and neutral pH.
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On the corrosion behavior of Al2Cu by local electrochemical impedance spectroscopy using droplet cell microscopy
TL;DR: In this paper, the electrochemical behavior of an individual Al2Cu intermetallic phase (coexisting with α-Al) in 0.1 M NaCl solution was studied using droplet cell microscopy (DCM).
References
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Electrochemical Characteristics of Intermetallic Phases in Aluminum Alloys An Experimental Survey and Discussion
TL;DR: In this article, a survey of corrosion potentials, pitting potentials and electrochemical characteristics for intermetallic particles commonly present in high-strength aluminum-based alloys is presented.
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An agar-based silver|silver chloride reference electrode for use in micro-electrochemistry
TL;DR: In this article, a miniaturised Ag|AgCl reference electrode is described, which can be easily set up and its electrochemical behaviour is proven by micro-polarisation curves, electrochemical impedance spectroscopy and potential transients.
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The Scanning Droplet Cell and its Application to Structured Nanometer Oxide Films on Aluminium
TL;DR: In this article, a scanning droplet cell was used for surface analysis of valve metals (especially Al), and the electrolyte droplet had a diameter of some 100 μm, with lateral resolution limited to 1/10 of the droplet diameter.
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Scanning droplet cell for high throughput electrochemical and photoelectrochemical measurements
TL;DR: This work has developed a highly integrated, compact scanning droplet cell that is optimized for rapid electrochemical and photoeletrochemical measurements, and screened a quaternary oxide library as (photo)electrocatalysts for the oxygen evolution (water splitting) reaction.
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Micro-electrochemical techniques for studies of localized processes on metal surfaces in the nanometer range
Hans Böhni,T Suter,F Assi +2 more
TL;DR: In this paper, the results obtained from stainless steel are presented and discussed with respect to the corrosion resistance of these alloys, based on the microcapillary technique new methods have been developed, such as the non-contact scanning capillary microscopy and the Micro-Tribocorrosion Electrochemistry (MTE).