Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Kim, L. To Thi; Gabrielli, C.; Perrot, Hubert; Garcı́a-Jareño, J.J.; Vicente, F.

doi:10.1016/j.electacta.2012.06.049

Cited by 18 publications

(18 citation statements)

References 54 publications

(58 reference statements)

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“…in any state, which means that there are no possibilities of dissolving from titanium mesh current collector or the NaTi 2 (PO 4 ) 3 anode. As shown in 27,31,32 At the charged state up to 0.9 V in 1 m NaClO 4 aq., detected metal ions amount in the electrolyte and the coloration did not change much compared to the initial state, but pH value shifted from 4 to 6. H + concentration is not increased, because the voltage of NMHCF cathode is much lower than the potential of O 2 evolution as shown in Fig.…”

Section: Electrolyte Properties During Charge/discharge Processmentioning

confidence: 99%

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

et al. 2017

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From the viewpoint of the cost and safety, aqueous sodium-ion batteries are attractive candidate for large-scale energy storage. Although the operating voltage range of the aqueous battery is theoretically limited to 1.23 V by the electrochemical decomposition of water, the voltage restriction is a little bit eased in real aqueous battery system by the charge/discharge overvoltage. Effect of the concentrated electrolyte on the operation voltage was studied in aqueous Na-ion battery with Na 2 MnFe(CN) 6 hexacyanoferrates cathode and NaTi 2 (PO 4 ) 3 NASICON-type anode, in order to increase the discharge voltage. According to the cyclic voltammetry, the electrochemical window of diluted 1 mol kg −1 NaClO 4 aqueous electrolyte is only 1.9 V, whereas the corresponding electrochemical window of concentrated 17 mol kg −1 NaClO 4 aqueous electrolyte is widen to 2.8 V. This wide electrochemical window of the concentrated aqueous electrolyte allows the Na 2 MnFe(CN) 6 //NaTi 2 (PO 4 ) 3 aqueous sodium-ion system to work reversibly. By contrast, the framework of Na 2 MnFe(CN) 6 cathode was destroyed by the hydroxide anion generated in diluted 1 mol kg −1 electrolyte.

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Section: Electrolyte Properties During Charge/discharge Processmentioning

confidence: 99%

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

et al. 2017

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“…It can be reduced from its deep blue color to the colorless form of Prussian white (PW) and then recovered by oxidation through the following reaction: KFe 3+ [Fe 2+ (CN) 6 ] + K + + e − ⇄ K 2 Fe 2+ [Fe 2+ (CN) 6 ]. 34 Because of its excellent color switching properties between PB and PW under external electrical stimuli, PB has been considered as a prominent candidate for the electrochromic displays. Previous studies on these electrochromic devices have reported lifetimes in the range of 10 5 to over 10 7 cycles, suggesting extremely high stability for color switching.…”

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confidence: 99%

Photocatalytic Color Switching of Transition Metal Hexacyanometalate Nanoparticles for High-Performance Light-Printable Rewritable Paper

Wang

Feng

et al. 2017

Nano Lett.

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Developing efficient photoreversible color switching systems for constructing rewritable paper is of significant practical interest owing to the potential environmental benefits including forest conservation, pollution reduction, and resource sustainability. Here we report that the color change associated with the redox chemistry of nanoparticles of Prussian blue and its analogues could be integrated with the photocatalytic activity of TiO nanoparticles to construct a class of new photoreversible color switching systems, which can be conveniently utilized for fabricating ink-free, light printable rewritable paper with various working colors. The current system also addresses the phase separation issue of the previous organic dye-based color switching system so that it can be conveniently applied to the surface of conventional paper to produce an ink-free light printable rewritable paper that has the same feel and appearance as the conventional paper. With its additional advantages such as excellent scalability and outstanding rewriting performance (reversibility >80 times, legible time >5 days, and resolution >5 μm), this novel system can serve as an eco-friendly alternative to regular paper in meeting the increasing global needs for environment protection and resource sustainability.

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“…The result that is presented in Figure 11 indicates that the potential response remained constant at the pH range of 2.0-10.0, which can be used as the applicable pH range of the prepared electrode. At pH <2.0, the response potential of bromide electrode significantly decreased with decreasing pH values due to the simultaneous response of the electrode to the oppositely charged H 3 O + and Br − [51]. When the pH is greater than 10, on the contrary, OH − strongly competed with Br − to form oxonium cations, which resulted in an augmented response potential with increasing pH values [52].…”

Section: Effect Of Ph and Selectivitymentioning

confidence: 99%

Doped PANI Coated Nano-Ag Electrode for Rapid In-Situ Detection of Bromide in Seawater

Wang

Zhou

et al. 2019

Coatings

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In this paper, we successfully fabricated a novel bromide ion selective electrode (Br-ISE), which was coated by bromine ion doped polyaniline as sensitive film. Using Ag wire as the substrate, a uniform and dense nano-silver layer was electroplated to enhance the specific surface area of the electrode. Subsequently, a polyaniline (PANI) film was coated onto the electrode by cyclic voltammetry in a 0.3 M aniline and 1 M HCl solution and was in-situ doped by 0.1 M KBr solution. The morphology and performance of the electrode were characterized by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and other electrochemical analysis methods, respectively. The prepared Br-ISE exhibited a wide linear dynamic range between 1.0 × 10−1 and 1.0 × 10−7 M with a near-Nernst slope of 57.33 mV/decade. In addition, the electrode possessed extremely fast response time (<1 s) and low impedance (300 Ω), high sensitivity, and good selectivity. The electrode potential drifted within 2 mV in 8 h. The lifespan was larger than three months.

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Redox switching of Prussian blue thin films investigated by ac-electrogravimetry

Abstract: of Prussian blue thin films investigated by ac-electrogravimetry. Electrochimica Acta, Elsevier, 2012, 84, pp

Cited by 18 publications

References 54 publications

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

Photocatalytic Color Switching of Transition Metal Hexacyanometalate Nanoparticles for High-Performance Light-Printable Rewritable Paper

Doped PANI Coated Nano-Ag Electrode for Rapid In-Situ Detection of Bromide in Seawater

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