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

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Xafs Study of Co(Ii) at the Zno-Aqueous and Zns-Aqueous Interfaces. / Persson, Per; Parks, G. A.; Brown, G. E.

In: Physica B: Condensed Matter, Vol. 208, 1995, p. 453-454.

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Persson, Per ; Parks, G. A. ; Brown, G. E. / Xafs Study of Co(Ii) at the Zno-Aqueous and Zns-Aqueous Interfaces. In: Physica B: Condensed Matter. 1995 ; Vol. 208. pp. 453-454.

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TY - JOUR

T1 - Xafs Study of Co(Ii) at the Zno-Aqueous and Zns-Aqueous Interfaces

AU - Persson, Per

AU - Parks, G. A.

AU - Brown, G. E.

N1 - 1-4

PY - 1995

Y1 - 1995

N2 - 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.

AB - 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.

U2 - 10.1016/0921-4526(94)00865-S

DO - 10.1016/0921-4526(94)00865-S

M3 - Article

VL - 208

SP - 453

EP - 454

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -