Electrochemical Behavior of Silver Halogenocomplexes in an Amide-Type Ionic Liquid
نویسندگان
چکیده
The electrode reactions of haloargentates were investigated in an aprotic and hydrophobic amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) the presence halide ions. Silver halides, AgX (X – = Cl , Br I ) found to be soluble BMPTFSA containing 0.5 M BMPX form halogenocomplex, [AgX 3 ] 2– . cathodic reduction metallic Ag was observed within electrochemical potential window while lower than that liquid absence X equilibrium potentials /Ag order [AgCl > [AgBr [AgI probably reflecting thermodynamic stability complexes. diffusion coefficients 2.5, 2.0, 1.6 × 10 –7 cm 2 s –1 respectively. morphology deposits strongly depended on potential. nucleation growth mechanism deposition considered progressive rather instantaneous. Formation nanoparticles dispersed liquids confirmed after potentiostatic at –2.5 V vs Ag∣Ag(I) using a transmission electron microscope.
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ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2022
ISSN: ['0013-4651', '1945-7111']
DOI: https://doi.org/10.1149/1945-7111/ac8bac