Abstract
Abstract This work presents the results of a theoretical study of semi-infinite linear diffusion of single geometrically anisotropic molecular species to a stationary planar interface and monolayer adsorption at the interface assuming reorientation of the initially flat adsorbed molecules to perpendicular position. A modified Flory–Huggins isotherm including lateral molecular interaction was used in the study of adsorption kinetics with different models of molecular reorientation. The connection between the structural changes of the adsorbed monolayer induced by reorientation of the initially flatly adsorbed molecules and the corresponding subtle, but the experimentally accessible changes in the fractional electrode coverage is established and investigated. It is shown that depending on the rate constants of the reorientation process, the change in the fractional interface coverage can range from barely noticeable to a very pronounced, manifested as a pit in the fractional coverage curve. The possible implications for the experimental detection of reorientation are discussed. The presented theoretical predictions are compliant with the recent experimental findings.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
