Abstract
The competitive irreversible adsorption of 1,4-naphthohydroquinone (NHQ) and 2,2′,5,5′-tetrahydroxybiphenyl (THBP) from aqueous solutions onto smooth (annealed) polycrystalline platinum electrodes has been studied at room temperature. Coadsorption coverage measurements were based on thin-layer coulometry. Preferential adsorption of NHQ over THBP was exhibited at all bulk concentrations studied. The mixed adsorption profiles showed minima in total packing density which were accompanied by minima in the fraction of edge-pendant oriented THBP, indicating that packing in oriented mixed-polyphenol layers involves ordered structures which are favored by intermolecular hydrogen-bonding. In the edge-orientation, traces of one compound in a layer composed primarily of another compound introduced disorder into the layer.
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.
