New reflections on hard X-ray photon-in/photon-out spectroscopy.
Sara Lafuerza,Marius Retegan,Blanka Detlefs,Ruchira Chatterjee,Vittal K. Yachandra,Junko Yano,Pieter Glatzel +6 more
TLDR
Experimental aspects are discussed, the feasibility of measuring weak fluorescence lines in dilute, radiation sensitive samples are assessed, and new experimental approaches for studying magnetic properties of colloidal nanoparticles directly in the liquid phase are presented.Abstract:
Analysis of the electronic structure and local coordination of an element is an important aspect in the study of the chemical and physical properties of materials. This is particularly relevant at the nanoscale where new phases of matter may emerge below a critical size. X-ray emission spectroscopy (XES) at synchrotron radiation sources and free electron lasers has enriched the field of X-ray spectroscopy. The spectroscopic techniques derived from the combination of X-ray absorption and emission spectroscopy (XAS-XES), such as resonant inelastic X-ray scattering (RIXS) and high energy resolution fluorescence detected (HERFD) XAS, are an ideal tool for the study of nanomaterials. New installations and beamline upgrades now often include wavelength dispersive instruments for the analysis of the emitted X-rays. With the growing use of XAS-XES, scientists are learning about the possibilities and pitfalls. We discuss some experimental aspects, assess the feasibility of measuring weak fluorescence lines in dilute, radiation sensitive samples, and present new experimental approaches for studying magnetic properties of colloidal nanoparticles directly in the liquid phase.read more
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Challenges and Opportunities for Applications of Advanced X-ray Spectroscopy in Catalysis Research
TL;DR: In this article , the authors review the range of hard X-ray photon-in, photon-out experiments that are presently possible, and highlight their recent applications in catalysis research, and discuss the ongoing need for conventional XAS applications, either in standalone applications or in combination with more advanced approaches.
Journal ArticleDOI
Design of Single-Atom Catalysts and Tracking Their Fate Using Operando and Advanced X-ray Spectroscopic Tools
TL;DR: The potential of operando X-ray techniques for following the structure, fate, and active site of single-atom catalysts (SACs) is highlighted with emphasis on a synergetic approach of both topics as mentioned in this paper .
Journal ArticleDOI
Activity of Cu-Al-Oxo Extra-Framework Clusters for Selective Methane Oxidation on Cu-Exchanged Zeolites.
Insu Lee,Mal Soon Lee,Lei Tao,Takaaki Ikuno,Rachit Khare,Andreas Jentys,Thomas Huthwelker,Camelia N. Borca,Aleksandr Kalinko,Oliver Y. Gutiérrez,Niri Govind,John L. Fulton,Jian Zhi Hu,Vassiliki Alexandra Glezakou,Roger Rousseau,Maricruz Sanchez-Sanchez,Johannes A. Lercher,Johannes A. Lercher +17 more
TL;DR: Evidence is provided of a [Cu2AlO3]2+ cluster exchanged on MOR Al pairs that is able to oxidize up to two methane molecules per cluster at ambient pressure and it consists of two Cu ions and one Al linked by O.
Journal ArticleDOI
The five-analyzer point-to-point scanning crystal spectrometer at ESRF ID26.
Pieter Glatzel,Alistair Harris,Philippe Marion,Marcin Sikora,Tsu-Chien Weng,Cyril Guilloud,Sara Lafuerza,Mauro Rovezzi,Blanka Detlefs,Ludovic Ducotté +9 more
TL;DR: In this paper, various options for positioning the components and formulas for calculating their relative placement were discussed, and the alignment of the instrument was described and examples are given for the performance of the performance.
Journal ArticleDOI
The Inner Shell Spectroscopy beamline at NSLS-II: a facility for in situ and operando X-ray absorption spectroscopy for materials research
Denis Leshchev,Maksim Rakitin,B. V. Luvizotto,R. Kadyrov,Bruce Ravel,Klaus Attenkofer,Eli Stavitski +6 more
TL;DR: The specifications of the Inner Shell Spectroscopy beamline at the National Synchrotron Light Source II of Brookhaven National Laboratory are described in this paper , where the inner shell spectroscope is used for the beamline.
References
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