Electrochemistry of Tris(2,2'-bipyridyl)Ruthenium(II)-Sodium Dodecyl Sulfate in 300 mM $H_2SO_4$ Solution

  • Received : 2009.02.24
  • Accepted : 2009.03.12
  • Published : 2009.03.31

Abstract

Electrochemistry of 1.0 mM tris(2,2'-bipyridyl)ruthenium(II) ($Ru(bpy)_3{^{2+}}$) in 300 mM $H_2SO_4$ solution with and without sodium dodecyl sulfate (SDS) is studied. In the presence of SDS, $E_{pa}$ of $Ru(bpy)_3{^{2+}}$ shifts to positive direction compared to the SDS free case. The intersection of two lines on ${\Delta}E_p$ vs. -log[SDS] plot is measured as a critical micelle concentration (CMC), which is 3.67 mM SDS.

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