Electrochromic Thin Film of Water-Dispersible Prussian-Blue Nanoparticles

Omura, Ayako; Shiozaki, Hirofumi; Hara, Shigeo; Kawamoto, T.; Gotoh, Akihito; Kurihara, M.; Sakamoto, Mitsuru; Tanaka, Hidemi

doi:10.1093/ietele/e91-c.12.1887

Cited by 7 publications

(8 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PB analogues (PBAs) are replaced by other metal ions in PB with similar crystal structures. From the analysis of their chemically modified electrodes, multi-functionalities of PB and PBAs have recently received renewed interest in scientific fields and for industrial applications, such as electrochromic displays, [2][3][4][5][6][7] electrocatalysts, 8,9 secondary batteries, 10 ion-and bio-sensors, 11,12 photo-magnets, [13][14][15] and hydrogen storage. 16,17 So far, we have revealed that insoluble PB and PBA colloidal nanoparticles (NPs) are immediately precipitated from a dense aqueous solution of M 3+/2+ and [Fe II/III (CN) 6 ] 4−/3− as chargecompensated salts of the coordination polymers M 4 [Fe(CN) 6 ] 3 and M 3 [Fe(CN) 6 ] 2 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Proton-exchange mechanism of specific Cs+ adsorption via lattice defect sites of Prussian blue filled with coordination and crystallization water molecules

et al. 2013

Self Cite

View full text Add to dashboard Cite

We have revealed the fundamental mechanism of specific Cs(+) adsorption into Prussian blue (PB) in order to develop high-performance PB-based Cs(+) adsorbents in the wake of the Fukushima nuclear accident. We compared two types of PB nanoparticles with formulae of Fe(III)4[Fe(II)(CN)6]3·xH2O (x = 10-15) (PB-1) and (NH4)0.70Fe(III)1.10[Fe(II)(CN)6]·1.7H2O (PB-2) with respect to the Cs(+) adsorption ability. The synthesised PB-1, by a common stoichiometric aqueous reaction between 4Fe(3+) and 3[Fe(II)(CN)6](4-), showed much more efficient Cs(+) adsorption ability than did the commercially available PB-2. A high value of the number of waters of crystallization, x, of PB-1 was caused by a lot of defect sites (vacant sites) of [Fe(II)(CN)6](4-) moieties that were filled with coordination and crystallization water molecules. Hydrated Cs(+) ions were preferably adsorbed via the hydrophilic defect sites and accompanied by proton-elimination from the coordination water. The low number of hydrophilic sites of PB-2 was responsible for its insufficient Cs(+) adsorption ability.

show abstract

Section: Introductionmentioning

confidence: 99%

Proton-exchange mechanism of specific Cs+ adsorption via lattice defect sites of Prussian blue filled with coordination and crystallization water molecules

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…24 A stable oxidation wave occurred at +0.46 V vs. SCE. 24 A stable oxidation wave occurred at +0.46 V vs. SCE.…”

Section: Redox Reactions Of Pb Nanoparticle Thin Filmsmentioning

confidence: 97%

Electrochemical control of the elution property of Prussian blue nanoparticle thin films: mechanism and applications

Omura

Tanaka

Kurihara

et al. 2009

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

We found a method for controlling the elution property of a thin film of water-dispersible Prussian blue (w-PB) nanoparticles using a simple electrochemical treatment. The thin film of the w-PB nanoparticles fabricated by the spin-coating method was unstable in water and eluted easily. However, after electrochemical reduction and oxidation, the film did not elute in water. To clarify the mechanism, we investigated films using ultraviolet-visible absorption spectroscopy, X-ray photoemission spectroscopy, and atomic force microscopy. We propose herein that the change in the elution property occurs because of alkali cation exchange from Na(+) to K(+). We also demonstrated that this elution-control technique is effective for the fabrication of w-PB nanoparticle nanostructures such as multilayered thin films.

show abstract

“…For electrochromic studies, the water-dispersible PB NPs with 10-15% surface modification with [Fe(CN) 6 ] 4− have been used because of their highly dispersible nature in water. 4,6 However, ITO glass and plastic substrates repel the water inks, and such repellents are responsible for the unsuccessful spin-coating thin films of the PB NPs. The atmospheric oxygen plasma treatment of the substrates suppressed the repellent through improvement of their wettability.…”

Section: Spin-coated Thin Films Of N-butanol-dispersible Pb Nps Prepa...mentioning

confidence: 99%

“…The water-dispersible PB NP thin films showed an advantageous feature of the electrochromic response, leading to direct electrical contact between each NP. 4,6 The surface-charged PB NPs of the thin films were eluted into electrolyte aqueous solution. Thus, the PB thin films of the physically connected charged NPs are fragile when exposed to some electrolyte solutions.…”

Section: Spin-coated Thin Films Of N-butanol-dispersible Pb Nps Prepa...mentioning

confidence: 99%

“…30,42 The fabrication of the water-dispersible PB NP ink will be categorised as a green preparation due to the complete exclusion of synthetic organic solvents, surfactants, and additional harmful reagents. 8,30,38 Spin-coated PB thin films 4,6 and printed PB patterns 5,7 using the PB NP inks on ITO glass substrates exhibited a quick electrochromic response between blue and colourless and high durability of the redox cycles of more than 10 4 times. 5 Water-dispersible NP inks will greatly contribute to printed electronics using the most environmentally friendly solvent; however, many substrates, such as glass and plastic, repel such aqueous inks in the printing process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of electrochromic Prussian blue nanoparticles dispersible into various solvents for realisation of printed electronics

et al. 2012

View full text Add to dashboard Cite

An insoluble solid of historic Prussian blue (PB) was transformed into dispersible PB nanoparticles in water and various hydrophilic and hydrophobic organic solvents. Via hybrid surface modification using Na 4 [Fe II (CN) 6 ] and short-chain alkylamines, the insoluble PB was successfully dispersed in hydrophilicand-hydrophobic boundary alcohols, such as n-butanol. The n-butanol-dispersible PB nanoparticles afforded homogeneous spin-coated thin films on various substrates. The chemisorbed shorter-chain alkylamines, n-propylamines, of the PB nanoparticles were thermally released at 100 °C from their surfaces to present stubborn electrochromic PB thin films adhering to the substrate via mutual coordination-bonding networks.

show abstract

Electrochromic Thin Film of Water-Dispersible Prussian-Blue Nanoparticles

Cited by 7 publications

References 5 publications

Proton-exchange mechanism of specific Cs+ adsorption via lattice defect sites of Prussian blue filled with coordination and crystallization water molecules

Proton-exchange mechanism of specific Cs+ adsorption via lattice defect sites of Prussian blue filled with coordination and crystallization water molecules

Electrochemical control of the elution property of Prussian blue nanoparticle thin films: mechanism and applications

Preparation of electrochromic Prussian blue nanoparticles dispersible into various solvents for realisation of printed electronics

Contact Info

Product

Resources

About