Title of article :
A novel differential equation approach to modeling ion size effects in the diffuse double layer
Author/Authors :
Smagala، نويسنده , , THOMAS G. and FAWCETT، نويسنده , , W. Ronald، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
8
From page :
43
To page :
50
Abstract :
A new differential equation for the diffuse double layer is derived from the integral form of the hypernetted chain approximation (HNCA). Using the mean-spherical approximation for ion–ion interactions in the bulk, the resulting theory is found to be in excellent agreement with results obtained by the traditional solution of the HNCA integral equation for 1:1 electrolytes, provided the product of the Debye–Hückel reciprocal length and the ionic diameter is less than 1.5. The new theory is much easier to implement than the traditional method, and provides a rapid route to the estimates of the ion–wall correlation functions, diffuse layer potential profiles, differential capacities, and ionic surface excesses for a restricted electrolyte in a primitive solvent.
Keywords :
Diffuse double layer , Ion size effects , Double layer theory , differential equation
Journal title :
Journal of Electroanalytical Chemistry
Serial Year :
2006
Journal title :
Journal of Electroanalytical Chemistry
Record number :
1672641
Link To Document :
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