Moderately charged cylinder

An approximate potential profile for a moderately charged cylinder in the presence of a mixed electrolyte can be found by using the effective-valence planar solution of Eq. [69] in either the PGC approximation of Eq. [152] or the NLDH approximation of Eq. [177]. Application of Eq. [152] is straightforward, but the NLDH potential of Eqs. [177]-[181] still requires development in terms of the cyHndrical geometry. The solution to DH equation [165] for d = l subject to conditions [160] is given in terms of Bessel functions and is derived in the following section. This solution is given by Eq. [259] below and leads to... 

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