Electrochemical behavior of silver halogenocomplexes in an amide-type ionic liquid

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The electrochemical behavior of halogenocomplexes of Ag was investigated in an amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) in the presence of the corresponding halogen anion. Silver halides, AgX (X- = Cl-, Br-, and I-) were found to be soluble in BMPTFSA containing 0.5 M BMPX by forming [AgX3]2-. The cathodic reduction of [AgX3]2- to metallic Ag was possible within the electrochemical window of BMPTFSA. The reduction potentials were in the order of [AgCl3]2- > [AgBr3]2- > [AgI3]2-. The morphology of Ag deposits depended on the reduction potential. The diffusion coefficients of [AgCl3]2-, [AgBr3]2-, and [AgI3]2- were 2.5, 2.0, and 1.6 × 10-7 cm2 s-1, respectively. Formation of Ag nanoparticles dispersed in the ionic liquids was confirmed after potentiostatic cathodic reduction at -2.5 V using transmission electron microscopy.

Original languageEnglish
Title of host publicationPRiME 2020
Subtitle of host publicationMolten Salts and Ionic Liquids 22
EditorsD. P. Durkin, P. C. Trulove, A. Bund, A. Ispas, V. Di Noto, W. M. Reichert, R. A. Mantz, H. C. De Long, M. Mizuhata, M. Ueda
PublisherIOP Publishing Ltd.
Pages209-214
Number of pages6
Edition10
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2020
EventPacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200 - Honolulu, United States
Duration: 2020 Oct 42020 Oct 9

Publication series

NameECS Transactions
Number10
Volume98
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200
CountryUnited States
CityHonolulu
Period20/10/420/10/9

ASJC Scopus subject areas

  • Engineering(all)

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