Structural Changes of the Gold−Support Interface during CO Oxidation Catalyzed by Mononuclear Gold Complexes Bonded to Zeolite NaY:  Evidence from Time-Resolved X-ray Absorption Spectroscopy

Langmuir ◽  
2005 ◽  
Vol 21 (13) ◽  
pp. 5693-5695 ◽  
Author(s):  
Juan C. Fierro-Gonzalez ◽  
Bruce C. Gates
Keyword(s):  
Co Oxidation ◽  
Absorption Spectroscopy ◽  
Structural Changes ◽  
Gold Complexes ◽  
Time Resolved ◽  
X Ray ◽  
Zeolite Nay ◽  
X Ray Absorption

Operando spatially and time-resolved X-ray absorption spectroscopy and infrared thermography during oscillatory CO oxidation

2015 ◽  
Vol 328 ◽  
pp. 216-224 ◽  
Author(s):  
Andreas M. Gänzler ◽  
Maria Casapu ◽  
Alexey Boubnov ◽  
Oliver Müller ◽  
Sabrina Conrad ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Infrared Thermography ◽  
Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

Time resolved X-ray absorption spectroscopy studies of metalloenzymes reveal mechanistic information beyond kinetics

2002 ◽  
Vol 58 (s1) ◽  
pp. c188-c188
Author(s):  
I. Sagi ◽  
G. Rosenblum ◽  
O. Kleifeld ◽  
A. Frenkel
Keyword(s):  
Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
Spectroscopy Studies ◽  
X Ray Absorption

scholarly journals A setup for ultrafast time-resolved x-ray absorption spectroscopy

2004 ◽  
Vol 75 (1) ◽  
pp. 24-30 ◽  
Author(s):  
Melanie Saes ◽  
Frank van Mourik ◽  
Wojciech Gawelda ◽  
Maik Kaiser ◽  
Majed Chergui ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

Time-Resolved X-ray Absorption Determination of Structural Changes following Photoinduced Electron Transfer within Bis-porphyrin Heme Protein Models

1999 ◽  
Vol 103 (16) ◽  
pp. 3270-3274 ◽  
Author(s):  
Lin X. Chen ◽  
Peter L. Lee ◽  
David Gosztola ◽  
Walter A. Svec ◽  
Pedro A. Montano ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Structural Changes ◽  
Heme Protein ◽  
Time Resolved ◽  
X Ray ◽  
Absorption Determination ◽  
Protein Models ◽  
X Ray Absorption

scholarly journals Development of an experimental apparatus to observe ultrafast phenomena by tender X-ray absorption spectroscopy at PAL-XFEL

2022 ◽  
Vol 29 (1) ◽  
Author(s):  
Yujin Kim ◽  
Daewoong Nam ◽  
Rory Ma ◽  
Sangsoo Kim ◽  
Myung-jin Kim ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Spectroscopic Technique ◽  
Ultrafast Dynamics ◽  
Electronic Information ◽  
Time Resolved ◽  
X Ray ◽  
Experimental Apparatus ◽  
Technical Achievement ◽  
X Ray Absorption ◽  
Pal Xfel

Understanding the ultrafast dynamics of molecules is of fundamental importance. Time-resolved X-ray absorption spectroscopy (TR-XAS) is a powerful spectroscopic technique for unveiling the time-dependent structural and electronic information of molecules that has been widely applied in various fields. Herein, the design and technical achievement of a newly developed experimental apparatus for TR-XAS measurements in the tender X-ray range with X-ray free-electron lasers (XFELs) at the Pohang Accelerator Laboratory XFEL (PAL-XFEL) are described. Femtosecond TR-XAS measurements were conducted at the Ru L 3-edge of well known photosensitizer tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]2+) in water. The results indicate ultrafast photoinduced electron transfer from the Ru center to the ligand, which demonstrates that the newly designed setup is applicable for monitoring ultrafast reactions in the femtosecond domain.

Ascertaining the nanocluster formation within an ion-irradiated Pt/Ni/C multi-trilayer with X-ray absorption spectroscopy

2012 ◽  
Vol 20 (1) ◽  
pp. 137-144
Author(s):  
Nitya Ramanan ◽  
Sumalay Roy ◽  
Debdutta Lahiri ◽  
Surinder M. Sharma ◽  
B. N. Dev
Keyword(s):  
Absorption Spectroscopy ◽  
Structural Changes ◽  
Nearest Neighbor ◽  
Ion Irradiation ◽  
Physical Adsorption ◽  
X Ray ◽  
Bimetallic Nanoclusters ◽  
Wave Technique ◽  
Wide Scale ◽  
X Ray Absorption

In this work nanoclusters formed in a Pt/Ni/C multi-trilayer by the ion-irradiated method of synthesis are characterized. In particular, an attempt to understand the role of interfaces in the synthesis is made. With this objective, ion-irradiation-induced structural changes in a Pt/Ni/C multi-trilayer using X-ray absorption spectroscopy (at the NiK-edge) in conjunction with the X-ray standing-wave technique are investigated. The XANES analysis identifies chemical binding at pristine Ni/C and Ni/Pt interfaces, in contrast with physical adsorption at the Pt/C interface. The chemical nature of the interfaces determines their relative stability with respect to irradiation and controls the extent of metallic diffusion. The most interesting structural change, upon irradiation, is the disruption of the Pt/C interface and subsequent migration of Pt atoms towards pre-diffused Ni atoms within the C layer, leading to the formation of Ni-centered Ni–Pt bimetallic nanoclusters (with Ni:Pt = 60:40). These clusters are highly disordered beyond their nearest neighbor and find wide-scale applications as, for example, magnetic devicesetc. The implications of these findings on the design goals are discussed.

scholarly journals Time-resolved X-ray absorption spectroscopy of infrared-laser-induced temperature jumps in liquid water

2009 ◽  
Vol 96 (1) ◽  
pp. 11-18 ◽  
Author(s):  
G. Gavrila ◽  
K. Godehusen ◽  
C. Weniger ◽  
E. T. J. Nibbering ◽  
T. Elsaesser ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Liquid Water ◽  
Infrared Laser ◽  
Time Resolved ◽  
X Ray ◽  
Temperature Jumps ◽  
X Ray Absorption

scholarly journals Decomposing electronic and lattice contributions in optical pump – X-ray probe transient inner-shell absorption spectroscopy of CuO

2019 ◽  
Vol 216 ◽  
pp. 414-433 ◽  
Author(s):  
Johannes Mahl ◽  
Stefan Neppl ◽  
Friedrich Roth ◽  
Mario Borgwardt ◽  
Catherine Saladrigas ◽  
...  
Keyword(s):  
Heat Transport ◽  
Absorption Spectroscopy ◽  
Energy Deposition ◽  
Optical Pump ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

Laser-induced energy deposition and heat transport in CuO is studied by picosecond time-resolved X-ray absorption spectroscopy.

Sign in / Sign up

Export Citation Format

Share Document