کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
190071 459691 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of acetonitrile on electrodeposition of Ni from a hydrophobic ionic liquid
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effects of acetonitrile on electrodeposition of Ni from a hydrophobic ionic liquid
چکیده انگلیسی

The effects of addition of acetonitrile (ACN) on electrodeposition of nickel were investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Ni(TFSA)2. Addition of ACN resulted in the change of the color of the ionic liquid. The UV–vis and FT-IR spectra of the electrolyte showed the coordination environment of Ni(II) changed gradually from [Ni(TFSA)3]− to [Ni(ACN)6]2+ with an increase in the concentration of ACN. The diffusion coefficient of Ni(II) in BMPTFSA was increased and the reduction potential of Ni(II) shifted to the more positive side in the presence of ACN. The nucleation/growth process of Ni was not affected by the change in the coordination environment of Ni(II) from the chronoamperometric results although the more nuclei formed on the electrode surface. SEM showed smoother deposit was obtained in Ni(TFSA)2/BMPTFSA with ACN.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 28, 1 December 2010, Pages 9019–9023
نویسندگان
, , ,