Electrochemical preparation of nickel and iron nanoparticles in a hydrophobic ionic liquid

Y. L. Zhu, Y. Katayama, T. Miura

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

4 Citations (Scopus)

Abstract

The preparation of nickel and iron nanoparticles was achieved in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifloromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)2 or Fe(TFSA)2. A potentiostatic cathodic reduction of Ni(II) in Ni(TFSA)2/BMPTFSA at - 2.6 V made the color of the electrolyte change from yellow to black and resulted in formation of Ni nanoparticles, which were confirmed by transmission electron microscopy (TEM) and energy-dispersive X-ray analysis (EDX). Addition of acetonitrile (ACN) into Ni(TFSA)2/BMPTFSA resulted in a reduction of the mean diameter of Ni nanoparticles from about 3 nm to 1 nm. This may be due to the changes in the coordination environment of the Ni(II) species in the ionic liquid, from [Ni(TFSA)3]- to [Ni(ACN)6]2+. The mean diameter of Fe nanoparticles, which were prepared from Fe(TFSA)2/BMPTFSA, was close to that of Ni nanoparticles.

Original languageEnglish
Title of host publicationMolten Salts and Ionic Liquids 17
Pages537-541
Number of pages5
Edition7
DOIs
Publication statusPublished - 2010 Dec 1
Event17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting - Las Vegas, NV, United States
Duration: 2010 Oct 102010 Oct 15

Publication series

NameECS Transactions
Number7
Volume33
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other17th International Symposium on Molten Salts and Ionic Liquids - 218th ECS Meeting
CountryUnited States
CityLas Vegas, NV
Period10/10/1010/10/15

ASJC Scopus subject areas

  • Engineering(all)

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