Octadecylamine-based Langmuir-Blodgett films containing iron and copper hexacyanoferrates

Ivanov, N. S.; Kondrat'ev, Yu. V.; Yanklovich, A. I.; Суходолов, Н. Г.; Zhukov, A. N.

doi:10.1134/s1061933x15020088

Cited by 6 publications

(4 citation statements)

References 9 publications

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“…An increase in the area of the monolayer is observed for all values of the surface pressure. Two rectilinear sections are observed, the value of the area per molecule at the zero value of the surface pressure is 0.42 nm 2 . Fig.…”

Section: -A Isothermsmentioning

confidence: 94%

“…Prussian blue and other metals hexacyanoferrate (HCF) with general formula A[B(CN) 6 ] Ń nH 2 O (where A and B are atoms of transition metals) have been studied as promising compounds due to their magnetic properties [1], high ion-exchange capacity [2]. These hexacyanoferrates have shown the possibility of using electrochemical imaging devices [3,4], catalysts [5], energy carriers [6], and ion-selective sensors [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…The compression isotherms of the ODA monolayer on water (1) and the ODA monolayer containing nanoparticles of the nickel HCF(2). nanoparticles before extraction are demonstrated inFigs.…”

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confidence: 99%

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Monolayers of Surfactants Containing Nanoparticles of Hexacyanoferrates of Various Metals

Stepashkin

Chernenko

Khripun

et al. 2018

Reviews on Advanced Materials Science

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In this article the possibility of obtaining Langmuir-Blodgett films on the basis of octadecylamine monolayers containing nanoparticles of hexacyanoferrates of various metals was shown. A comparison was made between different methods for obtaining these particles. Nanoparticles were produced using sodium hexametaphosphate as a stabilizer, their average size were determined by laser diffraction. The isotherms of compression were studied for monolayers on a subphase containing nanoparticles. Optimal conditions for the transfer of monolayers to a solid substrate were chosen according to the data obtained and their morphology was studied by scanning electron microscopy. The cyclic voltammetry method also confirmed the successful transfer of a monolayer to a solid substrate and showed the manifestation of the electrochemical properties of the obtained substrates.

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Section: -A Isothermsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Monolayers of Surfactants Containing Nanoparticles of Hexacyanoferrates of Various Metals

Stepashkin

Chernenko

Khripun

et al. 2018

Reviews on Advanced Materials Science

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“…Sorbents containing a metal ion strongly bound at the substrate are of special interest for metal-affine chromatography [2][3][4]. Earlier we have shown that such structures containing Fe III ions can be used as metal-affine sorbents [5,6].…”

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confidence: 99%

Surface properties of Langmuir–Blodgett films and nanodispersed oxides containing nickel and copper

et al. 2015

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The structures exhibiting specific sorption properties have recently attracted considerable attention [1]. Sorbents containing a metal ion strongly bound at the substrate are of special interest for metal-affine chromatography [2][3][4]. Earlier we have shown that such structures containing Fe III ions can be used as metal-affine sorbents [5,6]. Therefore we assumed that Langmuir-Blodgett films based on metal stearates and nanodispersed metal oxides with a developed surface can exhibit such specific sorption properties [7,8]. To verify this assumption, we prepared collapsed films of copper and nickel stearates and nanosized oxides of the same metals.The films of copper and nickel stearates with average mass of 0.002 g per 100 cm 2 were prepared via the Langmuir-Blodgett method. Chemical analysis of the metals contents showed that the fraction of copper (nickel) at the surface of stearic acid monolayer was of 0.5, pointing at the complete conversion of stearic acid into distearate of the corresponding metal. Scanning electronic microscopy (SEM) examination of the collapsed monolayers of copper and nickel stearates revealed the layered structures that were further used in the study of the electrokinetic potential as a function of the solution рН. The isoelectric points were found at 3.9 and 3.5 рН units for the films based on nickel and copper stearates, respectively.Nickel and copper oxides were synthesized via microwave treatment of aqueous solutions containing carbamide and the corresponding metal nitrate. The Xray analysis revealed that the single-phase oxides without any admixtures of the starting compounds were formed; the recorded reflexes were well resolved, and no splitting was observed. Nickel and copper oxides had the bunsenite and the tenorite structures, respectively. In the both cases, the peaks were somewhat broadened, possibly pointing at sufficiently high dispersity and small particle size of the resulting oxides. The SEM method showed that the formed oxides contained spherical aggregates of about 500 nm.The synthesized oxides were studied with nitrogen low-temperature sorption (BET). The hysteresis loop and characteristic inflection at low relative pressure allowed assignment of the sorption isotherm to the type IV according to the IUPAC nomenclature, evidencing about the mesoporous structure of the oxides. The specific surface area of copper and nickel oxides was of 2 and 90 m 2 /g, respectively.It was found that both the films of copper and nickel stearates and the oxides of those metals exhibited the metal-affine activity towards N-(phosphonomethyl)glycine and aminomethylphosphonic acid, i.e. they could be used as sorbents. After extraction

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Electrochemical properties of Langmuir-Blodgett films containing cobalt hexacyanoferrate nanoparticles

et al. 2018

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Octadecylamine-based Langmuir-Blodgett films containing iron and copper hexacyanoferrates

Cited by 6 publications

References 9 publications

Monolayers of Surfactants Containing Nanoparticles of Hexacyanoferrates of Various Metals

Monolayers of Surfactants Containing Nanoparticles of Hexacyanoferrates of Various Metals

Surface properties of Langmuir–Blodgett films and nanodispersed oxides containing nickel and copper

Electrochemical properties of Langmuir-Blodgett films containing cobalt hexacyanoferrate nanoparticles

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