Self‐Assembled Film of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion‐Sieving Membranes.

Pyrasch, Mario; Toutianoush, Ali; Jin, Wanqin; Schnepf, Judit; Tieke, Bernd

doi:10.1002/chin.200312214

Cited by 6 publications

(2 citation statements)

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“…Presently, a more detailed study on the growth and the morphology of the PB-type films and its relevance to the ion transport behavior is carried out, which will be published elsewhere. 39…”

Section: Discussionmentioning

confidence: 99%

Self-assembled Films of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion-Sieving Membranes

et al. 2002

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Ultrathin films of metal hexacyanometalates were prepared upon multiple sequential adsorption of metal cations M m + (Fe3+, Fe2+, Co2+, and Ni2+) and hexacyanometalate anions [M(CN)6] n - (Fe(CN)6 3-, Fe(CN)6 4-, and Co(CN)6 3-) on solid supports. The layer-by-layer deposition led to the formation of films of the metal complex salts with monolayer precision. The films were characterized using UV and IR spectroscopic methods and cyclic voltammetry. The alternating adsorption of Fe3+ and Fe(CN)6 4- ions led to dense and defect-free films of Prussian Blue, which were useful as membranes for ion separation. The porous, zeolitic structure of Prussian Blue was permeable for ions with a small Stokes radius such as Cs+, K+, and Cl-, whereas large hydrated ions such as Na+, Li+, Mg2+, or SO4 2- were blocked. The effect of ion sieving increased with the thickness of the membrane. After a hundred dipping cycles, high separation factors α(CsCl/NaCl) and α(KCl/NaCl) of 6.5 and 6.2, respectively, were found. Corresponding membranes of cobalt and nickel hexacyanoferrate were also useful for ion separation, but the α-values were lower. Possible reasons for the differences in selectivity are discussed.

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Section: Discussionmentioning

confidence: 99%

Self-assembled Films of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion-Sieving Membranes

et al. 2002

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“…In this work, we focus on the intercalation of alkali and alkaline earth ions into stoichiometric iron hexacyanoferrate (Fe[Fe(CN) 6 ], FeHCF) in nonaqueous solutions. The insertion of cations into hexacyanoferrate compounds in aqueous solution is usually accomplished with the hydrated ions. ,, In nonaqueous solutions, the large organic molecules of the solvent are unlikely to enter the lattice of hexacyanoferrate during the electrochemical insertion . Thus, we only consider the intercalation of cations, without including the organic solvent molecules in the calculations.…”

Section: Methodsmentioning

confidence: 99%

First-Principles Study of Alkali and Alkaline Earth Ion Intercalation in Iron Hexacyanoferrate: The Important Role of Ionic Radius

Ling¹,

Chen²,

Mizuno³

2013

J. Phys. Chem. C

200

165

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Hexacyanoferrate compounds recently have attracted much interest because of their potential as aqueous and nonaqueous battery cathodes in the application of large-scale energy storage. Here, the feasibility to use iron hexacyanoferrate, Fe[Fe(CN)6], as a cathode candidate for nonaqueous rechargeable batteries is assessed with first-principle calculations. The structural deformation induced by the intercalation of alkali (Li+, Na+, K+, Rb+, Cs+) and alkaline earth (Mg2+, Ca2+, Sr2+, Ba2+) ions into Fe[Fe(CN)6] induces is negligible as compared to other Li-ion battery cathodes. The intercalation is strongly affected by the ionic radius of inserted species. With increasing ionic size, the most stable interstitial site changes from face-centered site to body-centered site. More importantly, the voltages for the intercalation are highly correlated to the ionic radius of the inserted species. The insertion of cations with larger ionic radius happens at higher voltages, and thus provides higher energy density. However, the intercalation of larger cations may also suffer from slower migration kinetics. Thus, it is important to choose inserted cation with appropriate ionic size to achieve the optimized performance. Overall, our results suggest hexacyanoferrate compounds are promising cathode materials for various types of nonaqueous rechargeable batteries.

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Novel synthesis of nickel–iron hexacyanoferrate nanoparticles and its application in electrochemical sensing

Pandey

Panday

2016

Journal of Electroanalytical Chemistry

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Self‐Assembled Film of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion‐Sieving Membranes.

Cited by 6 publications

References 1 publication

Self-assembled Films of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion-Sieving Membranes

Self-assembled Films of Prussian Blue and Analogues: Optical and Electrochemical Properties and Application as Ion-Sieving Membranes

First-Principles Study of Alkali and Alkaline Earth Ion Intercalation in Iron Hexacyanoferrate: The Important Role of Ionic Radius

Novel synthesis of nickel–iron hexacyanoferrate nanoparticles and its application in electrochemical sensing

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