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Xafs Study of Co(Ii) at the Zno-Aqueous and Zns-Aqueous Interfaces

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Author

Summary, in English

Co(II) adsorption at ZnO- and ZnS-aqueous interfaces was studied with the XAFS technique. The results show the presence of both 4- and 6-coordinated oxygen-ligated Co(II) on ZnO, corresponding to Co-O distances of 1.95 and 2.1 Angstrom, respectively. At ZnS two Co-O distances are also indicated and a Co-S correlation at 2.36 Angstrom is revealed. Higher shell analysis indicates a fraction of bidentately coordinated Co(II) on ZnO. Increased coverage yields a phase structurally close to Co(OH)(2) on both adsorbents.

Publishing year

1995

Language

English

Pages

453-454

Publication/Series

Physica B: Condensed Matter

Volume

208

Document type

Journal article

Publisher

Elsevier

Topic

  • Earth and Related Environmental Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0921-4526