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Journal ArticleDOI

Electrochemical preparation and characterization of hybrid films composed of prussian blue type metal hexacyanoferrate and conducting polymer

TL;DR: In this article, a hybrid organic/inorganic system is proposed to construct a thin and moderately thick (μm level) films on electrode surfaces during electrodeposition by potential cycling, where polyaniline and metal hexacyanoferrate are produced.
About: This article is published in Electrochimica Acta.The article was published on 2001-08-24. It has received 101 citations till now. The article focuses on the topics: Polyaniline & Conductive polymer.
Citations
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Journal ArticleDOI
TL;DR: In this article, a conducting polymer matrix is integrated into a polyaniline matrix to form a hybrid material to harness the electrochemical activity of nanosized oxide clusters, which can be put to work in energy storage applications.

225 citations

Journal ArticleDOI
TL;DR: In this article, new electrochemical sensors for dopamine (DA) and phenol derivative, based on hybrid inorganic redox material-organic conducting polymers, were developed, which exhibited a linear response over wide range of 4-nitrophenol concentrations from 30 to 90μM, with a detection limit of 8.23μM (s/n = 3).

118 citations

Journal ArticleDOI
TL;DR: In this paper, a review of the research that was done on utilizing Prussian blue (PB) and its analogues (PBA) for fabricating the electrodes of supercapacitor, studying their synthesis approaches in addition to the hybridization with other materials such as graphene, CNTs and conducting polymer.

113 citations

Journal ArticleDOI
TL;DR: In this article, a review article highlights the important synthesis techniques of hybrid conducting polymers and their conduction mechanism and the future prospects and current challenges of such polymers have also been overviewed.

109 citations

Journal ArticleDOI
TL;DR: In this article, the ability of a polyoxometallate (dodecamolybdophosphate) to form negatively charged monolayers on solid electrode surfaces is explored.

99 citations

References
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Journal ArticleDOI
TL;DR: In this article, anodic growth of polyaniline films on a Au microelectrode array has been carried out to add to the characterization of polyanoiline and to fabricate polyanoin-based microelectronic devices, diodes and transistors, that function when the polyanoine-functionalized microelectron array is immersed in an electrolyte solution.
Abstract: : Anodic growth of polyaniline films on a Au microelectrode array has been carried out to add to the characterization of polyaniline and to fabricate polyaniline-based microelectronic devices, diodes and transistors, that function when the polyaniline-functionalized microelectrode array is immersed in an electrolyte solution. The microelectrode array is a set of eight Au electrodes, 0.1 micrometer thick, 4.4 micrometers wide and 50 micrometers long, each individually addressable and separated from each other by 1.7 micrometers. Polyaniline can be deposited in controlled amounts by electrochemical oxidation of aniline. When the polyaniline is deposited in sufficient amounts, two or more of the eight Au microelectrodes can be connected in the electrical sense. Current can pass between two connected microelectrodes when there is an applied potential between them. The magnitude of the current at a given applied potential depends on the electrochemical potential of the polyaniline. In 0.5 M NaHsSO4/H20 the current (at a fixed applied potential) is maximum at an electrochemical potential of approx. +0.4 V vs. SCE and declines by a factor of greater than 1,000,000 upon reduction to +0.1 or oxidation to +0,7 V vs. SCE. Owing to the large change in resistance upon change in electrochemical potential, the functionalized microelectrodes is crucial to device function, owing to the limited conductivity of the polyaniline. The switching time of a transistor-like device is faster than 0.1 s.

944 citations

Journal ArticleDOI
TL;DR: In this article, Electrochemical and SEM characterization results are presented, and effects of polyaniline coating application techniques are discussed, including the effect of localized corrosion on the open-circuit voltage.
Abstract: Electroactive polyaniline coatings have been deposited on ferritic stainless steels. The coatings appear to be deposited over the passive metal oxide film but can undergo electron transfer with the metal. Polyaniline immobilized on the alloys imparts a form of anodic protection which stabilizes the materials in mineral acids. Electrochemical and SEM characterization results are presented, and effects of coating application techniques are discussed. Oscillations in the open‐circuit voltage occur in solutions containing a high enough concentration of chloride ion to initiate pitting at potentials dictated by the coating. Inhibition of localized corrosion may also be obtainable for favorable systems.

763 citations

Book
01 Jan 1995
TL;DR: In this paper, a rearview mirror for cars employing type 1 (solution phase) electrochromes is described, and the insertion coefficient of ECDs is analyzed, as well as the response time, cycle life, and insertion coefficient.
Abstract: Part 1 Introduction: electrochromism - what is electrochromism?, existing technologies, electrochromic displays and shutters, terminology of electrochromism, primary and secondary electrochromism, colour and contrast ratio, colouration efficiency, write-erase efficiency, response time, cycle life, the insertion coefficient, ECD appearance electrochromic systems -equilibrium electrochemistry, electrochromic operation exemplified, voltammetry, charge transfer and charge transport, AC or RF electrochemistry, electrodes construction of electrochromic devices -all-solid cells with reflective operation, all-solid cells with transmissive operation, solid electrolytes, the preparation of solid electrochromic films, liquid electrolytes, self-darkening electrochromic rearview mirror for cars employing type 1 (solution-phase) electrochromes. Part 2 Electrochromic systems: metal oxides-cobalt oxide, indium tin oxide, iridium oxide, molybdenum trioxide, nickel oxide, tungsten trioxide, vanadium pentoxide, other metal oxides, mixed metal oxides, metal oxide - organic mixtures phthalocyanine compounds - lutetium bis(phthalocyanine), other metal phthalocyanines, related species prussian blue - preparation of prussian blue thin films, prussian blue electrochromic films, prussian blue ECDs, prussian blue analogues other inorganic systems - deposition of metals, deposition of colloidal material, intercalation layers, inclusion and polymeric systems bipyridilium systems - bipyridilium redox chemistry, bipyridilium species for inclusion within ECDs, recent developments electroactive conducting polymers - polyaniline electrochromes, polypyrrole electrochromes, polythiophene electrochromes, poly(carbazole), miscellaneous polymeric electrochromes, recent developments other organic electrochromes - monomeric species, tethered electrochromic species, electrochromes immobilised by viscous solvents polyelectrochromism - studies of polyelectrochromic systems photoelectrochromism and electrochromic printing - device types, electrochromic printing or electrochromography.

701 citations

Journal ArticleDOI
01 Mar 1995-Nature
TL;DR: In this paper, the authors developed a rechargeable lithium battery with a composite organic cathode based on a mixture of a dimercaptan and polyaniline, which can be repeatedly charged to near its theoretical limit and discharged.
Abstract: THE development of low-cost, solid-state rechargeable batteries is of considerable technological importance. A key requirement of such batteries is that the density of energy stored electrochemically in the electrodes is high. In this context, the use of organic materials has attracted interest; they combine high theoretical energy storage capability with low weight and good mechanical strength. Here we report the development of a rechargeable lithium battery with a composite organic cathode based on a mixture of a dimercaptan and polyaniline. The redox behaviour of the dimercaptan, which is normally too slow for practical applications1,2, is accelerated when coupled to that of the polyaniline3–5 (which itself functions as an active cathode material). Intimate mixing of the two materials is achieved by casting them jointly from solution. The resulting electrode can be repeatedly charged to near its theoretical limit and discharged. The gravimetric energy density of our materials exceeds that of the oxide electrodes in commercially available lithium-ion batteries6, a feature that is likely to prove advantageous in applications where weight, rather than volume, is a critical factor.

474 citations