Ion adsorption at the rutile-water interface: Linking molecular and macroscopic properties

Z. Zhang, P. Fenter, L. Cheng, N. C. Sturchio, M. J. Bedzyk, M. Předota, A. Bandura, J. D. Kubicki, S. N. Lvov, P. T. Cummings, A. A. Chialvo, M. K. Ridley, P. Bénézeth, L. Anovitz, D. A. Palmer, M. L. Machesky, D. J. Wesolowski

Research output: Contribution to journalArticlepeer-review

268 Scopus citations


An understanding of the solution-crystal interface that connects the actual molecular structures to the macroscopic properties, was obtained, by combining in situ synchrotron X-ray measurements on submerged rutile single crystal surfaces with ab inito calculations, molecular dynamic simulations, and macroscopic ion adsorption data. All X-ray, ab inito, molecular dynamics, and ion adsorption results were broadly compatible with a Stern-based description of EDL structure. All cations were found to be adsorbed as 'inner sphere' species bonded directly to surface oxygen atoms. A link between macroscopic manifestations of metal oxide surface charging and ion adsorption and the molecule-scale interfacial structures was established.

Original languageEnglish
Pages (from-to)4954-4969
Number of pages16
Issue number12
StatePublished - Jun 8 2004


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