Grazing incidence X-ray absorption spectroscopy

XAS. In order to better understand the catal)4ic processes, we investigated Co nanoparticle catalysts in SAN and SiNW with grazing incidence X-ray absorption spectroscopy (GI-XAS). Figure 10.16 shows the results of EXAFS measurements. FT of the EXAFS of both SAN and SiNW samples are shown. 

J. D. Carter, F. Shan, and T. Guo, Determination of CoSi2 self-aligned nanostructures (SAN) with grazing incidence X-ray absorption spectroscopy, J. Phys. Chem. B 109, 4118 122 (2004). 

Figure 9.15 Electrochemical cells for in situ grazing incidence X-ray diffraction (GIXRD) and grazing incidence X-ray absorption spectroscopy (GIXAD). (A) Thin-layer ceU for XAS in reflection and grazing incidence XRD XE, entrance X-ray beam XR, reflected X-ray beam PE, polyethylene foil WE, working electrode RE, reference electrode CE, counter electrode EL, electrolyte SH, sample holder and (B) ceU for XAS in transmission and reflection. XE entrance X-ray beam, XR reflected X-ray beam, WE working electrode, CE counter electrode RE reference electrode, W windows, B1 beam aperture, entrance beam, B2 beam aperture, reflected beam, and blocking direct beam (according to Strehblow). (Reproduced with permission from Ref. [22], 2006, Walter de Gruyter Co.)...

Grazing-incidence X-ray Absorption Emission Spectroscopy 307 interface fluorescence vs. incidence angle... 

GDCAFS Grazing incidence X-ray absorption fine structure spectroscopy... 

X-Ray Absorption Spectroscopy (XAS). The XAS measurements were similar to those described elsewhere.Grazing incidence (GI)-XAS measurements were performed at beamline 11-2 at Stanford Synchrotron Radiation Laboratory (SSRL). A double Si(220) crystal spectrometer was used to select the energy of the synchrotron X-rays, and the beam size was set to 400 pm x 2 mm. The bandwidth of the spectrometer was about 1 eV. Routine procedures were used to optimize the positions of the samples so that the angle of incidence was about 0.17°, with the X-ray... 

Towle SN, Bargar JR, Brown GE Jr, Parks GA (1999b) Sorption of Co(II) on metal oxide surfaces II. Identification of Co(II)(aq) adsorption sites on (1-102) and (0001) surfaces of a-Al203 by grazing-incidence XAFS spectroscopy. J Colloid Interface Sci 217 312-321 Trainor TP (2001) X-ray Scattering and X-ray Absorption Spectroscopy Studies of the Structure and Reactivity of Aluminum Oxide Surfaces. Ph.D. Dissertation. Department of Geological Environmental Sciences, Stanford University, Stanford, CA, USA Trainor TP, Brown GE Jr, Parks GA (2000) Adsorption and precipitation of aqueous Zn(II) on alumina powders. J Colloid. Interface Sci 231 359-372... 

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