Single molecule magnets with protective ligand shells on gold and titanium dioxide surfaces: In situ electrospray deposition and x-ray absorption spectroscopy

2013 ◽  
Vol 139 (15) ◽  
pp. 154708 ◽  
Author(s):  
Karsten Handrup ◽  
Victoria J. Richards ◽  
Matthew Weston ◽  
Neil R. Champness ◽  
James N. O’Shea
Keyword(s):  
Titanium Dioxide ◽  
Absorption Spectroscopy ◽  
Single Molecule ◽  
Electrospray Deposition ◽  
Single Molecule Magnets ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films

2013 ◽  
Vol 4 ◽  
pp. 320-324 ◽  
Author(s):  
David Klar ◽  
Svetlana Klyatskaya ◽  
Andrea Candini ◽  
Bernhard Krumme ◽  
Kurt Kummer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Single Molecule ◽  
Magnetic Circular Dichroism ◽  
Magnetic Coupling ◽  
Magnetic Surface ◽  
Antiferromagnetic Coupling ◽  
Single Molecule Magnets ◽  
X Ray ◽  
X Ray Absorption

The magnetic and electronic properties of single-molecule magnets are studied by X-ray absorption spectroscopy and X-ray magnetic circular dichroism. We study the magnetic coupling of ultrathin Co and Ni films that are epitaxially grown onto a Cu(100) substrate, to an in situ deposited submonolayer of TbPc2 molecules. Because of the element specificity of the X-ray absorption spectroscopy we are able to individually determine the field dependence of the magnetization of the Tb ions and the Ni or Co film. On both substrates the TbPc2 molecules couple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.

Application of In Situ X-ray Absorption Spectroscopy to Study Dilute Chromium Ions in a Molten Chloride Salt

2019 ◽  
Author(s):  
Jisue Moon ◽  
Carter Abney ◽  
Dmitriy Dolzhnikov ◽  
James M. Kurley ◽  
Kevin A. Beyer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chloride Salt ◽  
X Ray ◽  
Molten Chloride ◽  
Stable Species ◽  
Higher Temperature ◽  
Cr Concentration ◽  
X Ray Absorption

The local structure of dilute CrCl<sub>3</sub> in a molten MgCl<sub>2</sub>:KCl salt was investigated by <i>in situ</i> x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800<sup>o</sup>C. This constitutes the first experiment where dilute Cr speciation is explored in a molten chloride salt, ostensibly due to the compounding challenges arising from a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl<sub>3</sub> was confirmed to be the stable species between 200 and 500<sup>o</sup>C, while mobility of metal ions at higher temperature (>700<sup>o</sup>C) prevented confirmation of the local structure.

Revealing the structural transformation of rutile RuO2via in situ X-ray absorption spectroscopy during the oxygen evolution reaction

2019 ◽  
Vol 48 (21) ◽  
pp. 7122-7129 ◽  
Author(s):  
Chia-Jui Chang ◽  
You-Chiuan Chu ◽  
Hao-Yu Yan ◽  
Yen-Fa Liao ◽  
Hao Ming Chen
Keyword(s):  
Oxygen Evolution ◽  
Structural Transformation ◽  
Absorption Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
The State ◽  
X Ray ◽  
Alkaline Conditions ◽  
X Ray Absorption ◽  
State Of Art

The state-of-art RuO2 catalyst for the oxygen evolution reaction (OER) is measured by using in situ X-ray absorption spectroscopy (XAS) to elucidate the structural transformation during catalyzing the reaction in acidic and alkaline conditions.

Simple flow through reaction cells for in situ transmission and fluorescence x-ray-absorption spectroscopy of heterogeneous catalysts

2006 ◽  
Vol 77 (2) ◽  
pp. 023105 ◽  
Author(s):  
Simon R. Bare ◽  
George E. Mickelson ◽  
Frank S. Modica ◽  
Andrzej Z. Ringwelski ◽  
N. Yang
Keyword(s):  
Absorption Spectroscopy ◽  
Heterogeneous Catalysts ◽  
X Ray ◽  
Flow Through ◽  
X Ray Absorption ◽  
Simple Flow

scholarly journals Unraveling the Structure of Mn-Promoted Co/TiO2 Fischer-Tropsch Catalysts by In Situ X-Ray Absorption Spectroscopy

2007 ◽  
Author(s):  
Didier Grandjean ◽  
Fernando Morales ◽  
Ad Mens ◽  
Frank M. F. de Groot ◽  
Bert M. Weckhuysen
Keyword(s):  
Absorption Spectroscopy ◽  
Fischer Tropsch ◽  
X Ray ◽  
X Ray Absorption

Genesis of Pt Clusters in Reverse Micelles Investigated by in Situ X-ray Absorption Spectroscopy

2004 ◽  
Vol 108 (24) ◽  
pp. 8148-8152 ◽  
Author(s):  
Yin W. Tsai ◽  
Yu L. Tseng ◽  
Loka S. Sarma ◽  
Din G. Liu ◽  
Jyh F. Lee ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Reverse Micelles ◽  
X Ray ◽  
X Ray Absorption

In situ sulfur K-edge X-ray absorption spectroscopy of the reaction of zinc oxide with hydrogen sulfide

1996 ◽  
pp. 1431 ◽  
Author(s):  
John Evans ◽  
Judith M. Corker ◽  
Clive E. Hayter ◽  
Richard J. Oldman ◽  
B. Peter Williams
Keyword(s):  
Zinc Oxide ◽  
Hydrogen Sulfide ◽  
Absorption Spectroscopy ◽  
X Ray ◽  
X Ray Absorption
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