Exafs PowerPoint PPT Presentations

Primary competing processes and some radiative and non ... From ab-initio calculations or from reference compounds. 0. 1 st. 2 nd. 3 rd. Coordination shells ...

Corwin H. Booth Chemical Sciences Division Glenn T. Seaborg Center Lawrence Berkeley National Laboratory Presented at the SSRL School on Synchrotron X-ray Absorption ...

How to model metal (Pt) foil data: S02 = 0.747364 0.044827 ... title = Pt L3-edge, foil. data = ptfoil-200avk.chi out = ptfoil-200avk. rmin = 2.1 rmax = 3.3 ...

Silicon Sensor with Readout ASICs for EXAFS Spectroscopy. Gianluigi De ... Microelectronics Group, Instrumentation Division, Brookhaven National Laboratory, ...

... gas molecules) the ejected photo-electron (wave) will be scattered ... A single step-scanning EXAFS scan will take about 20-40 minutes.(Perhaps longer ...

1. Extended X-ray absorption fine structure (EXAFS) and X-ray ... f is the phase shift the photoelectron undergoes when it bounces off the scattering atom. ...

GeoSoilEnviroCARS l The University of Chicago l Argonne National Lab. 1 ... GeoSoilEnviroCARS l The University of Chicago l Argonne National Lab. 2. The ...

GeoSoilEnviroCARS l The University of Chicago l Argonne National Lab. 1 ... Matt Newville, Steve Sutton, Peter Eng, Mark Rivers (Univ of Chicago) ...

1. EXAFS study of La and Zr local environment in amorphous precursors of ... XRD - Bruker AXS D4 Endeavor diffractometer CuKa radiation. SEM - Zeiss SUPRA 35VP ...

However, one possible source of the organic phosphate is that arising from the ... false-colour image of the sample scannd using micro-FTIR spectroscopy ...

... high-pressure Polarized neutron scattering: specular & non-specular ... for the EXAFS station Confocal optical laser microscopy studies ...

... s2i using the EXAFS equation Other Reference Materials FEFF can accurately calculate the various M-M interactions in the close-packed crystal structures Pt ...

... X-Ray Absorption Near Edge Structure - tunable synchroton radiation in the X-Ray region necessary EXAFS and XANES Thermal Analysis DTA: ...

ARO Workshop on Application of First-Principles-Based Computational Methods to ... Andrea Russel et.al (J Phys.Chem B 2000,104,1998-2004) studied EXAFS of CO ...

... of XANES Structure. Mehmet Karabiyik, Kyle Bolduc, and James E. Penner-Hahn ... b) X-Ray Absorption: Principles, applications, techniques of EXAFS, SEXAFS ...

EXAFS studies of Negative Thermal Expansion Zincblende structure PhD student: Naglaa AbdelAll Tutors: Prof. Giuseppe Dalba Prof. Paolo Fornasini

X-Ray Absorption Spectroscopy (EXAFS & XANES studies) Imaging ... Dean Chapman , Canada Research Chair in X-Ray Imaging, University of Saskatchewan ...

Sub 20-fs examination of the optically pumped amorphous silicon ... Difference spectra recorded above Si Kedge (1.8 keV) EXAFS evaluation. 2D Fourier transform ...

While diffraction methods require crystallinity, EXAFS/SEXAFS can be applied to ... E. A. Stern and S. M. Heald, edited by E. E. Koch, North-Holland, 1983. ...

Title: Phononen in Fe65Ni35 Temperatur- und Druckabh ngigkeit Author: AG Wortmann Created Date: 4/3/2002 9:40:03 AM Document presentation format

Debye-Waller. factor. Electron mean. free path. High coordination number. Low temperature ... Waller. factor. Back. scattering. amplitude. Direction of ...

Xray Absorption Spectroscopy of Molybdenum Enzymes

Converting CO2 emissions, powered by renewable electricity, to produce fuels and chemicals provides an elegant route towards a carbon-neutral energy cycle. Progress in the understanding and synthesis of Cu catalysts has spurred the explosive development of electrochemical CO2 reduction (CO2RR) technology to produce hydrocarbons and oxygenates; however, Cu, as the predominant catalyst, often exhibits limited selectivity and activity towards a specific product, leading to low productivity and substantial post-reaction purification. Here, we present a single-atom Pb-alloyed Cu catalyst (Pb1Cu) that can exclusively (~96% Faradaic efficiency) convert CO2 into formate with high activity in excess of 1 A cm–2.

... CoFeB-MgO magnetic tunnel junctions (MTJs) are leading spintronic devices that relies on quantum Mechanical tunneling of electrons from one magnetic metal ...

Modern version of code uses X Windows graphics. ... DHOASE-K101A_014.001 Hamster DHOase K101A variant. 8.5K. Label Index Array. rtc 1 ...

Use flow and recirculation reactors spanning. 0.1-100 atm. Emphasize study of structure of catalysts and. membranes and functional mechanisms ...

Title: No Slide Title Author: Valued Gateway Customer Last modified by: Valued Gateway Customer Created Date: 10/2/2000 4:50:52 PM Document presentation format

XAS is used to obtain local structural environment of different cations in ... XANES: Gives information about the ionic state of the absorbing atom. ...

basic principle of XAFS and XANES. and a glimpse on data evaluation ... encoder in-vacuo (Renishaw ) - vacuum 10-7 mbar. Monochromator ...

Title: CoC2 Author: J. Nishijo Last modified by: J. Nishijo Created Date: 11/15/2004 9:13:43 AM Document presentation format

Introduction to X-ray Absorption Spectroscopy: an element sensitive method ... Palladium Nanoparticles immobilized on Mesoporous Silica Support New Efficient ...

Synchrotron Radiation Interaction with Matter; Different Techniques Anders Nilsson Stanford Synchrotron Radiation Laboratory Why X-rays? VUV? What can we hope to learn?

Carbon dioxide electroreduction (CO2R) is being actively studied as a promising route to convert carbon emissions to valuable chemicals and fuels. However, the fraction of input CO2 that is productively reduced has typically been very low,

Instrumental corrections (energy calibration, deglitching etc. ... [1] S. R. Wasserman, J. Phys. IV France 7 (1997) C2-203 [2] T. Ressler, et al., Env. ...

Synchrotron Techniques in Environmental Sciences

X-ray absorption fine spectroscopy (XAFS) leads to short-range order structural data ... Two separated crystals : reference/transmitted (higher S/N ratio) ...

Synthesis and characterization of poorly-crystaline Fe-Al nano-hydroxides Katya Bazilevskaya, Douglas Archibald, Carmen Enid Mart nez Crop and Soil Sciences ...

Aliphatic hydrocarbons (like amine epoxy) with simple C-H bonds gives the best match ... is mostly comprised of aliphatic hydrocarbons. C-K NEXAFS Set by ...

Structural Chemistry from the Edge(s): An Introduction. Georgina Rosair ... information - 3D structure around a photoabsorber, even determine chirality ...

Nicola Allison, Adrian Finch (Univ of Brighton, Univ of Hertfordshire, UK) ... Matt Newville, Steve Sutton, Mark Rivers, Ian Steele (U Chicago) , Mark Antonio ...

Two of the major issues for UK high level waste vitrification. New and legacy ... plays a vital role in the disposal of nuclear waste (i.e. reprocessed calcine) ...

Conclusion For solving proper and improper problems of mathematical programming and inverse ill-posed problems with a priori information new iterative methods of ...

Title: Pr sentation PowerPoint Author: Laurence Galoisy Last modified by: Laurence Galoisy Created Date: 3/6/2004 6:28:22 PM Document presentation format

DISCUS. uses r ! PDF of Nano versus Bulk. Nanoparticle: A longest vector exists. DISCUS. uses r ! 4 0 r tanh(shape(r-diameter)) 4 0 r. Diameter. Crystal of ...

Mineralogy, geochemistry and speciation of contaminants in urban sediments. Kevin G. Taylor ... Early diagenesis results in contaminant release into river basins. ...

Condensed Matter Physics: Advanced experimental techniques. Femtosecond X-ray ... course of phase transitions in solids. kinetic pathways of chemical reactions ...

Synchrotron Radiation in the Earth and Environmental Sciences

Research performed at UNLV on the chemistry of Technetium in the nuclear fuel cycle 1. Separation U/Tc and synthesis of solids form 2. Synthesis and characterization ...

Diamond Light Source Data Acquisition System (GDA) flexes its muscles Presented by Paul Gibbons PhD. GDA Team Manager but the work of many others.

Electron spectroscopy IMFP of electron Photoelectron spectroscopy 3. Microscopies: PEEM, LEEM, Imaging XPS Auger electron spectroscopy Extended X-ray Absorption Fine ...

Countries where surface physics is performed (source 1993, : Briggs, Seah, see References) ... [1] H. P. Myers, Introductory Solid State Physics, Taylor&Francis, 1990. ...

with an electrometer. m=I/I0. Data Collection. Synchrotron ... Electrometer. Sample. Auger effect (Non-radiative de-excitation) -The photo-electron is emitted ...

Structure and magnetic properties of Mn11Cr with a half-integer spin Nagoya Univ. H. Hachisuka, K. Awaga Inst. Mol. Sci.) T. Yokoyama

20-Jun-2003. mXRF and mXAFS with the GSECARS X-ray Microprobe. Matthew Newville, Steve Sutton, Mark ... and x -ray diffraction (small crystals, high pressure) ...

... .edu/chem/Scarrow/EXAFS123/Plotting%20Graphs.htm FITTING http://www.haverford.edu/chem/Scarrow/EXAFS123/FITTING.htm REFINING http ... and molecular size ...

Title: Author: ELECTROCHEMISTRY Last modified by: Created Date: 10/28/1999 9:40:43 AM Document presentation format