P
P. Geissbühler
Researcher at University of Washington
Publications - 6
Citations - 716
P. Geissbühler is an academic researcher from University of Washington. The author has contributed to research in topics: Calcite & X-ray reflectivity. The author has an hindex of 6, co-authored 6 publications receiving 676 citations. Previous affiliations of P. Geissbühler include Argonne National Laboratory.
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Journal ArticleDOI
Surface speciation of calcite observed in situ by high-resolution X-ray reflectivity
TL;DR: In this paper, high-resolution X-ray reflectivity measurements were made of the calcite (104) -water interface in calcite-saturated aqueous solutions at pH values ranging from 6.8 to 12.1 and low PCO2.
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Three-dimensional structure of the calcite-water interface by surface X-ray scattering
P. Geissbühler,Paul Fenter,E. DiMasi,George Srajer,Larry B. Sorensen,Neil C. Sturchio,Neil C. Sturchio +6 more
TL;DR: The three-dimensional structure of the calcite-water interface has been determined with surface X-ray scattering with nine crystal truncation rods (including specular and non-specular rods) provided both vertical and lateral sensitivity to the interfacial structure.
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Lead adsorption at the calcite-water interface: Synchrotron X-ray standing wave and X-ray reflectivity studies
Neil C. Sturchio,Ronald P. Chiarello,L. Cheng,L. Cheng,Paul F. Lyman,Michael J. Bedzyk,Michael J. Bedzyk,Y. Qian,Y. Qian,Hoydoo You,Dennis Yee,P. Geissbühler,Larry B. Sorensen,Yong Liang,Donald R. Baer +14 more
TL;DR: In this paper, the synchrotron X-ray standing wave (XSW) measurements were combined with X-Ray reflectivity measurements to determine the precise 3D location of submonolayer Pb ions adsorbed at the calcite (104) surface from dilute aqueous solutions.
Journal ArticleDOI
Atomic-scale structure of the orthoclase (001)–water interface measured with high-resolution X-ray reflectivity
Paul Fenter,H. Henry Teng,P. Geissbühler,P. Geissbühler,John M. Hanchar,Kathryn L. Nagy,Neil C. Sturchio +6 more
TL;DR: In this paper, X-ray specular reflectivity and atomic force microscopy were used to determine the structure of the orthoclase (001) cleavage surface in contact with deionized water at 25°C.
Journal ArticleDOI
Otavite-calcite solid-solution formation at the calcite-water interface studied in situ by synchrotron X-ray scattering
Ronald P. Chiarello,Neil C. Sturchio,J. Grace,P. Geissbühler,Larry B. Sorensen,L. Cheng,L. Cheng,Songtao Xu +7 more
TL;DR: In this article, X-ray scattering measurements were performed in situ during the formation of thin overgrowths of otavite-calcite solid-solutions at the (10 1 4) cleavage surface of single-crystal calcite.