Adsorption of Catalyst at the Interface

The adsorption of catalyst at the interface indicates that a reaction must occur there. As shown by the Volta potential measurements in the chain  

FeP is adsorbed at the octane/water interface and produces a positive potential shift with respect to water as large as 0.46 V (Fig. 7). The adsorption of surface-active catalysts, such as coproporphyrin (CP) [51,52], at the octane/water interface has been studied. From the interfacial tension data, with the use of the Gibbs adsorption equation  

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