The LISA beamline at ESRF

d’Acapito, Francesco; Lepore, Giovanni Orazio; Puri, Alessandro; Laloni, A.; Manna, F.; Dettona, Eric; Luisa, A. De; Martin, A.

doi:10.1107/s160057751801843x

Cited by 65 publications

(33 citation statements)

References 21 publications

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“…After the optimization of the beamline optical configuration, the resulting energy resolution, evaluated from the rocking curves Full Width at Half Maximum (FWHM) of the two crystal sets measured in a wide energy range (5-40 keV), is ΔE/E = 10 −4 -10 −5 [2], depending on the crystal pair, which is in excellent agreement with theoretical calculations [5].…”

Section: Introductionsupporting

confidence: 52%

“…LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) [1,2], the new Italian beamline at the European Synchrotron Radiation Facility (ESRF), is the result of the refurbishment of the former GILDA (General purpose Italian beam Line for Diffraction and Absorption) [3], and it has been open to users since April 2018. The beamline has been designed and optimized for X-ray absorption spectroscopy (XAS).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, a pair of Pt-coated flat mirrors working at 8 mrads (cutoff ≈ 12 keV), located after the second mirror, can be used for harmonics rejection at low energies (4-6 keV). The small spot size and the beam stability during energy scans [2] (beam movement <10% of the beam size over an angular range of 30 • for both crystals pairs) allow for the study of samples of reduced dimensions, like small crystals and fibers, or to obtain elemental mappings of the sample with a spatial resolution of down to~100 × 65 µm 2 . crystals and fibers, or to obtain elemental mappings of the sample with a spatial resolution of down to ~100 × 65 μm 2 .…”

Section: Introductionmentioning

confidence: 99%

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The New Beamline LISA at ESRF: Performances and Perspectives for Earth and Environmental Sciences

2019

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LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) is the new Italian Collaborating Research Group (CRG) beamline at the European Synchrotron Radiation Facility (ESRF) dedicated to X-ray absorption spectroscopy (XAS). The beamline covers a wide energy range, 4 < E < 90 keV, which offers the possibility for probe the K and L edges of elements that are heavier than Ca. A liquid He/N2 cryostat and a compact furnace are available for measurements in a wide temperature range (10–1000 K), allowing for in situ chemical treatments and measurements under a controlled atmosphere. The sub-millimetric beam size, the high photon flux provided, and the X-ray fluorescence detectors available (HP-Ge, SDD) allow for the study of liquid and highly diluted samples. Trace elements in geological or environmental samples can be analyzed, even for very small sample areas, gaining information on oxidation states and host phases.

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Section: Introductionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The New Beamline LISA at ESRF: Performances and Perspectives for Earth and Environmental Sciences

2019

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“…Experiments were conducted at the BM-08 LISA CRG Beamline at the European Synchrotron Radiation Facility (ESRF) (see affiliations) in Grenoble [55] during four experimental sessions (08-01-996, MA2936, MA3173, and MA3431, in chronological order). For the first three sessions, a dynamically focusing sagittal monochromator equipped with a pair of Si(311) crystals were employed [45].…”

Section: Beamline Set-upmentioning

confidence: 99%

“…For the first three sessions, a dynamically focusing sagittal monochromator equipped with a pair of Si(311) crystals were employed [45]. During experiment MA3431, samples were measured after the first part of the BM08 refurbishment [55] Measurements were carried out in fluorescence mode by means of a 12-element solid-state (high purity Germanium) detector. All the spectroscopic and electrochemical measurements were synchronised and performed within the SPEC environment (Certified Scientific Software; http://www.certif.com/).…”

Section: Beamline Set-upmentioning

confidence: 99%

In-situ Quantification of Nanoparticles Oxidation: A Fixed Energy X-ray Absorption Approach

et al. 2019

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The oxidation of palladium nanoparticles causes the performance degradation of alkaline direct ethanol fuel cells. Quantifying this oxidation is a task of tremendous importance to design mitigation strategies that extend the service life of catalysts and devices. Here, we show that the Fixed Energy X-ray Absorption Voltammetry (FEXRAV) can provide this information with an in-situ approach. To do so, we have developed a quantification method that assumes the linear response at fixed energy. With this method, we have investigated the oxidation of carbon black-supported palladium electrocatalysts during cyclic voltammetry in the same solution employed as a fuel in the direct ethanol fuel cells. We have shown that up to 38% of the palladium is oxidised at 1.2 V vs RHE and that such oxidation also happens at lower potentials that the catalyst can experience in real direct ethanol fuel cells. The result of this study is a proof of concept of quantitative FEXRAV.

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Single Atom Silver‐Phosphors in Titanosilicate Matrix for Enhanced LED Applications

Romolini,

Sun,

Fron

et al. 2023

Advanced Optical Materials

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Small metal oligomers have gained significant attention due to their exceptional optoelectronic properties and versatile applications, ranging from sensors to imaging and catalysis. However, the need for matrices (silica, zeolites, or metal‐organic frameworks) to prevent aggregation into larger metallic particles reduces their potential applicability in light‐emitting devices (LEDs) due to their poor electrical properties. To address this issue, a novel semiconductor stabilizer, titanosilicate, is proposed as an innovative solution for Ag‐based luminescent materials. These results show that titanosilicate, characterized by high thermochemical stability and well‐defined semiconducting properties, is an ideal scaffold for Ag‐luminescent species. Optical spectroscopic techniques reveal that Ag‐titanosilicates feature an orange fluorescence with a photoluminescence quantum yield reaching 20%. In contrast, a combination of X‐ray diffraction, TEM, and XEOL‐X‐ray absorption spectroscopic techniques show that, unlike zeolites, the luminescent species consist of single Ag atoms. The electroluminescent properties of the proposed Ag‐titanosilicate are further investigated within a conventional LED architecture by using the new material as an emissive layer. The developed proof‐of‐concept LED exhibits a significant improvement of the ZEOLEDs, where a smaller low turn‐on voltage of 2 V (enabling energy‐efficient operation) and high color rendering index of 80 introduces exciting prospects for developing advanced Ag‐LED phosphors.

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The LISA beamline at ESRF

Cited by 65 publications

References 21 publications

The New Beamline LISA at ESRF: Performances and Perspectives for Earth and Environmental Sciences

The New Beamline LISA at ESRF: Performances and Perspectives for Earth and Environmental Sciences

In-situ Quantification of Nanoparticles Oxidation: A Fixed Energy X-ray Absorption Approach

Single Atom Silver‐Phosphors in Titanosilicate Matrix for Enhanced LED Applications

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