Electrochemical Co-deposition of iron and nickel from a hydrophobic ionic liquid

Y. L. Zhu; Y. Katayama; T. Miura

doi:10.1149/2.0631508jes

Electrochemical Co-deposition of iron and nickel from a hydrophobic ionic liquid

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

School of Mechatronical Engineering

Keio University

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Electrochemical reactions of Ni(II)/Ni and Fe(II)/Fe were investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)₂ and Fe(TFSA)₂. The optimal conformation of high-spin metal ion (M(II) = Fe(II) and Ni(II)) with three trans-TFSA-were obtained using the theoretical calculations. The bigger molecular volume of Fe(II) species in BMPTFSA may lead to a smaller reduction peak current. The cyclic voltammetric results showed that the cathodic peaks of Ni(II) and Fe(II) emerged into one wave, which is close to the cathodic waves of individual metals and favorable for the co-electrodeposition of Ni-Fe. A non-anomalous codeposition behavior was found from BMPTFSA with Ni(TFSA)₂ and Fe(TFSA)₂. Ni-Fe deposits with different morphology and composition were obtained at various applied potentials and metal ion concentrations.

Original language	English
Pages (from-to)	D371-D375
Journal	Journal of the Electrochemical Society
Volume	162
Issue number	8
DOIs	https://doi.org/10.1149/2.0631508jes
Publication status	Published - 2015

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title = "Electrochemical Co-deposition of iron and nickel from a hydrophobic ionic liquid",

abstract = "Electrochemical reactions of Ni(II)/Ni and Fe(II)/Fe were investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)2 and Fe(TFSA)2. The optimal conformation of high-spin metal ion (M(II) = Fe(II) and Ni(II)) with three trans-TFSA-were obtained using the theoretical calculations. The bigger molecular volume of Fe(II) species in BMPTFSA may lead to a smaller reduction peak current. The cyclic voltammetric results showed that the cathodic peaks of Ni(II) and Fe(II) emerged into one wave, which is close to the cathodic waves of individual metals and favorable for the co-electrodeposition of Ni-Fe. A non-anomalous codeposition behavior was found from BMPTFSA with Ni(TFSA)2 and Fe(TFSA)2. Ni-Fe deposits with different morphology and composition were obtained at various applied potentials and metal ion concentrations.",

author = "Zhu, {Y. L.} and Y. Katayama and T. Miura",

note = "Publisher Copyright: {\textcopyright} 2015 The Electrochemical Society.",

year = "2015",

doi = "10.1149/2.0631508jes",

language = "English",

volume = "162",

pages = "D371--D375",

journal = "Journal of the Electrochemical Society",

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TY - JOUR

T1 - Electrochemical Co-deposition of iron and nickel from a hydrophobic ionic liquid

AU - Zhu, Y. L.

AU - Katayama, Y.

AU - Miura, T.

PY - 2015

Y1 - 2015

N2 - Electrochemical reactions of Ni(II)/Ni and Fe(II)/Fe were investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)2 and Fe(TFSA)2. The optimal conformation of high-spin metal ion (M(II) = Fe(II) and Ni(II)) with three trans-TFSA-were obtained using the theoretical calculations. The bigger molecular volume of Fe(II) species in BMPTFSA may lead to a smaller reduction peak current. The cyclic voltammetric results showed that the cathodic peaks of Ni(II) and Fe(II) emerged into one wave, which is close to the cathodic waves of individual metals and favorable for the co-electrodeposition of Ni-Fe. A non-anomalous codeposition behavior was found from BMPTFSA with Ni(TFSA)2 and Fe(TFSA)2. Ni-Fe deposits with different morphology and composition were obtained at various applied potentials and metal ion concentrations.

AB - Electrochemical reactions of Ni(II)/Ni and Fe(II)/Fe were investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)2 and Fe(TFSA)2. The optimal conformation of high-spin metal ion (M(II) = Fe(II) and Ni(II)) with three trans-TFSA-were obtained using the theoretical calculations. The bigger molecular volume of Fe(II) species in BMPTFSA may lead to a smaller reduction peak current. The cyclic voltammetric results showed that the cathodic peaks of Ni(II) and Fe(II) emerged into one wave, which is close to the cathodic waves of individual metals and favorable for the co-electrodeposition of Ni-Fe. A non-anomalous codeposition behavior was found from BMPTFSA with Ni(TFSA)2 and Fe(TFSA)2. Ni-Fe deposits with different morphology and composition were obtained at various applied potentials and metal ion concentrations.

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DO - 10.1149/2.0631508jes

M3 - Article

AN - SCOPUS:84931269858

SN - 0013-4651

VL - 162

SP - D371-D375

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 8

ER -

Electrochemical Co-deposition of iron and nickel from a hydrophobic ionic liquid

Abstract

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