Electrochemical Formation of Selenium Nanoparticle in an Amide-type Ionic Liquid

Electrochemical preparation of Co-Sm nanoparticles was conducted in an aprotic room temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Co(TFSA)2 and Sm(TFSA)3. The cyclic voltammetry on a glassy carbon (GC) electrode indicated the electrochemically generated Sm(II) reacted with Co(II) at 25 °C. Potentiostatic cathodic reduction on a GC electrode in BMPTFSA containing 30 mM Co(TFSA)2 and 5 mM Sm(TFSA)3 at 25 °C gave the deposits, which were found to be composed of Co and Sm by energy dispersive X-ray spectroscopy (EDX). The deposits were found to be the aggregates of SmCo7 nanoparticles by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The formation of SmCo7 nanoparticles dispersed in the ionic liquid was also confirmed by TEM. SmCo7 nanoparticles were considered to form by the disproportionation reaction of Sm(II) in the presence of elementary Co, which was formed by the reduction of Co(II) by Sm(II).

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“…82 Therefore, the stability of SmCo 7 nanoparticles in air might be caused by a protecting shell of BMPTFSA. [84][85][86][87][88][89][90]…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Preparation of Cobalt-Samarium Nanoparticles in an Aprotic Ionic Liquid

Manjum

Serizawa

Ispas

et al. 2020

J. Electrochem. Soc.

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“…We investigated the electrodeposition of various metals and the electrochemical behaviors of metal ions using RTILs composed of aliphatic cations and TFSA anion, which have a high reduction stability and relatively low viscosity. [42][43][44][45][46][47][48][49][50][51][52][53] Pd and Pt are two of the important metals used in scientific and industrial fields owing to their good physical and chemical properties such as corrosion and wear resistance. Therefore, the electrodeposition of Pd and Pt from RTILs has been extensively investigated; however, the precursor metal salts were limited to halogeno complexes.…”

Section: Electrodeposition Of Metals From Rtilsmentioning

confidence: 99%

“…49 Furthermore, we prepared Cd and Se nanoparticles by a similar electrochemical reduction method. 44,52 Although we have prepared metal nanoparticles in RTILs by the RTILsputtering and electrochemical reduction methods, we have not yet established a method to obtain the desired particle size. We expect that future research will elucidate the correlation between the structure and physicochemical properties of RTILs and the particle size of metal nanoparticles, and the application scope of metal nanoparticles stabilized in RTILs will further expand.…”

Section: Electrodeposition Of Metals From Rtilsmentioning

confidence: 99%

Electrodeposition of Metals and Preparation of Metal Nanoparticles in Nonaqueous Electrolytes and Their Application to Energy Devices

Yoshii

2021

Electrochemistry

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Nonaqueous electrolytes are used in various electrochemical devices as their electrochemical potential window is wider than that of aqueous electrolytes. Electrochemical reactions significantly change depending on the combination of nonaqueous solvent and salt and the dissolved state of the metal ions or redox species in the solvent. Room-temperature ionic liquids (RTILs), a type of nonaqueous solvent, have unique physicochemical properties such as negligible vapor pressure and non-flammability. Their application as reaction media for a variety of reactions, including electrochemical reactions has attracted significant interest, as they enable reactions that cannot proceed in water or organic solvents.We have been researching materials synthesis and energy devices using RTILs and organic electrolytes.Herein, we comprehensively review our research on the electrodeposition of metals, preparation of metal nanoparticles, and secondary batteries using nonaqueous electrolytes.

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“…In the literature, there are some works devoted to electroreduction or deposition of selenium ions in various ways [11][12][13][14][15][16][17][18][19]. Among these methods, the electrochemical method is the most extended and it always attracts great interest of researchers.…”

Section: Introductionmentioning

confidence: 99%

“…The electrochemical formation of selenium (Se) nanoparticles in an amide-type ionic liquid containing selenium tetrachloride (SeCl 4 ), was studied in the presence of an excess chlo-ride anion on a glassy carbon electrode [16,17]. The electrochemical reduction of [SeCl 6 ] 2led to the deposition of Se on the electrode surface.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of Selenium Ions From Organic Solution

Javadova¹

2020

AChJ

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Due to the unique properties of metal dichalcogenides, they are wide used in various fields of nano- and optoelectronics. Bi2Se3 is one of the promising n-type semiconductor materials belonging to the Av – Bvı group, with a band gap of 0.3 eV. To obtain these compounds by co-electrodeposition, we study the electroreduction of the initial components separately. Therefore, the study is devoted to the electrochemical reduction of selenite ions from the ethylene glycol solution. By drawing cyclic and linear polarization curves on Pt electrodes, the kinetics, the mechanism of the process, and the influence of various factors on the electroreduction of selenite ions are studied. Using the obtained data on the influence of temperature, the effective activation energy was calculated by the Gorbachov method. The calculation results show that the electroreduction of selenite ions from ethylene glycol is accompanied by electrochemical kinetics closer to diffusion

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Electrochemical Formation of Selenium Nanoparticle in an Amide-type Ionic Liquid

Cited by 5 publications

References 22 publications

Electrochemical Preparation of Cobalt-Samarium Nanoparticles in an Aprotic Ionic Liquid

Electrochemical Preparation of Cobalt-Samarium Nanoparticles in an Aprotic Ionic Liquid

Electrodeposition of Metals and Preparation of Metal Nanoparticles in Nonaqueous Electrolytes and Their Application to Energy Devices

Electrochemical Reduction of Selenium Ions From Organic Solution

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