Corrosion of conducting polymers in aqueous media

Beck, F.; Barsch, U.; Michaelis, R.

doi:10.1016/0022-0728(93)80232-7

Cited by 63 publications

(37 citation statements)

References 22 publications

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“…The above mentioned polymer reduction process cannot be completely balanced by oxidation of water to oxygen, owing to its high oxidation potential. A contribution from this process can be expected only in alkaline solutions [127].…”

Section: Irreversible Degradation (Corrosion) Under Ambient Conditionsmentioning

confidence: 98%

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Chemical Reactivity of Polypyrrole and Its Relevance to Polypyrrole Based Electrochemical Sensors

Maksymiuk

2006

Electroanalysis

139

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One of the most frequently used conducting polymers, polypyrrole, can take part in chemical processes with typical components of ambient media: oxygen, acids, bases, redox reactants, water, and organic vapors; it can also incorporate nonreactive ions and surfactants from solutions. The influence of such processes on changes of the polymer structure, composition and on possible degradation is analyzed. The benefits and disadvantages of such processes for analytical characteristic of polypyrrole based electrochemical sensors are considered. This discussion is focused on potentiometric ion sensors, where polypyrrole is either a receptor membrane or an ion-to-electron transducer placed between a solid state electrode support and a typical ion-selective membrane.

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Section: Irreversible Degradation (Corrosion) Under Ambient Conditionsmentioning

confidence: 98%

“…From the charge change vs. time plots, the corrosion kinetics could be evaluated. Exponential rate law has been found with half-time, which significantly lowers with increasing solution pH (from 10 2 to 10 5 s within pH range from 13 to 1 [126,127,134]). …”

Section: Irreversible Degradation (Corrosion) Under Ambient Conditionsmentioning

confidence: 99%

Chemical Reactivity of Polypyrrole and Its Relevance to Polypyrrole Based Electrochemical Sensors

Maksymiuk

2006

Electroanalysis

139

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“…Beck et al suggested a model of corrosion protection by PPy [25]. The initial fast corrosion was a superposition of cathodic film reduction and anodic oxidation.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…There are many publications related to conducting polymer in corrosion protection. Conducting polymer can decrease the corrosion rate of many metals such as iron, mild steel, aluminium, magnesium and others [19][20][21][22][23][24][25].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Layers of Inhibitor Anion – Doped Polypyrrole for Corrosion Protection of Mild Steel

Đức¹,

Trung²

2013

Materials Science - Advanced Topics

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“…This over-oxidation of polypyrrole polymer has inferior mechanical and electrical properties. On other hand, when the potential is too negative, hydrogen evolution and subsequent deterioration of the polymer occurs, which further reduces the mechanical displacement of the actuator [42,43]. Finally, strip 3 was set at ±1.5 V with a 5-s time period per side, which displayed better actuation as well as stability.…”

Section: Mechanical Properties Of the Tri-layer Actuatormentioning

confidence: 99%

Environmental Effects on the Polypyrrole Tri-layer Actuator

2017

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Abstract:Electroactive polymer actuators such as polypyrrole (PPy) are exciting candidates to drive autonomous devices that require low weight and low power. A simple PPy tri-layer bending type cantilever which operates in the air has been demonstrated previously, but the environmental effect on this actuator is still unknown. The major obstacle in the development of the PPy tri-layer actuator is to create proper packaging that reduces oxidation of the electrolyte and maintains constant displacement. Here, we report the variation in the displacement as well as the charge transfer at the different environmental condition. PPy trilayer actuators were fabricated by depositing polypyrrole on gold-coated porous poly(vinylidene fluoride) (PVDF) using the electro-synthesis method. It has been demonstrated that the charge transfer of tri-layer actuators is more in an inert environment than in open air. In addition, tri-layer actuators show constant deflection and enhancement of life due to the negligible oxidation rate of the electrolyte in an inert environment.

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Corrosion of conducting polymers in aqueous media

Cited by 63 publications

References 22 publications

Chemical Reactivity of Polypyrrole and Its Relevance to Polypyrrole Based Electrochemical Sensors

Chemical Reactivity of Polypyrrole and Its Relevance to Polypyrrole Based Electrochemical Sensors

Layers of Inhibitor Anion – Doped Polypyrrole for Corrosion Protection of Mild Steel

Environmental Effects on the Polypyrrole Tri-layer Actuator

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