Charge measurement capacitive probe method

The double-layer capacitance is another useful electrochemical method for probing the integrity of molecular assemblies in contact with electrolyte solutions. If a cyclic voltammogram is recorded in a solution of electrolyte only, a non-Faradaic current results, and the double-layer capacitance, Cji (or differential capacitance), is measured as half the width of the voltammogram charging envelope given by [30, 48]... 

The GCSB models have predicted a variety of interfacial properties, for example, capacitive behavior, charge and potential distributions, and potential dependence of surface tension (the so-called electrocapillary curves), which have been experimentally tested by a variety of electrochemical and physical methods with varying levels of success. For instance, much has been learned over the past 70 years about ion adsorption and solvent orientation at Hg and well-defined solid metal electrodes from capacitance measurements. " Similarly, studies in recent decades using in situ scanned probe microscopy and surface force microbalance method have been used to map the electrical forces (and thus electric field) extending from electrode surfaces. 

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