Electrochemical formation of selenium nanoparticle in an amide-type ionic liquid

Hiroki Sato, Shimul Saha, Naoki Tachikawa, Kazuki Yoshii, Nobuyuki Serizawa, Yasushi Katayama

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Electrochemical formation of selenium (Se) nanoparticles in an amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing selenium tetrachloride (SeCl4) was investigated in the presence of excess chloride anion on a glassy carbon electrode. Electrochemical reduction of [SeCl6]2- resulted in deposition of Se on the electrode surface. The deposited Se was further reduced electrochemically at the more negative potential region to form [Se2]2-, which was suggested to exist by ultraviolet-visible spectroscopy. Se nanoparticles dispersed in the ionic liquid were formed by the proportionation reaction between [SeCl6]2- and [Se2]2- in the ionic liquid. The Se nanoparticles were characterized by energy dispersive X-ray spectroscopy and transmission electron microscopy.

Original languageEnglish
Pages (from-to)57-60
Number of pages4
JournalElectrochemistry
Volume86
Issue number2
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Disproportionation
  • Ionic liquid
  • Nanoparticle
  • Selenium

ASJC Scopus subject areas

  • Electrochemistry

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