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Themed collection Spectroscopy and scattering for chemistry

21 items
Editorial

Spectroscopy and scattering for chemistry: new possibilities and challenges with large scale facilities

Kirsten M. Ø. Jensen, Dorota Koziej and Serena DeBeer introduce the Nanoscale themed issue on spectroscopy and scattering for chemistry: new possibilities and challenges with large scale facilities.

Graphical abstract: Spectroscopy and scattering for chemistry: new possibilities and challenges with large scale facilities
From the themed collection: Spectroscopy and scattering for chemistry
Minireview

Applications of pair distribution function analyses to the emerging field of non-ideal metal–organic framework materials

Pair distribution function, PDF, analyses are emerging as a powerful tool to characterize non-ideal metal–organic framework (MOF) materials with compromised ordering.

Graphical abstract: Applications of pair distribution function analyses to the emerging field of non-ideal metal–organic framework materials
From the themed collection: Recent Review Articles
Minireview

Characterizing electronic and atomic structures for amorphous and molecular metal oxide catalysts at functional interfaces by combining soft X-ray spectroscopy and high-energy X-ray scattering

Combined analyses by operando soft X-ray spectroscopy and high-energy X-ray scattering offers opportunities to unravel electronic and atomic structures that underpin interfacial catalysis.

Graphical abstract: Characterizing electronic and atomic structures for amorphous and molecular metal oxide catalysts at functional interfaces by combining soft X-ray spectroscopy and high-energy X-ray scattering
From the themed collection: Recent Review Articles
Open Access Communication

Selective magnetometry of superparamagnetic iron oxide nanoparticles in liquids

A new photon-in/photon-out magnetic probe empowers an in situ estimation of size distribution and atomic structure of iron oxide nanoparticles in suspension.

Graphical abstract: Selective magnetometry of superparamagnetic iron oxide nanoparticles in liquids
From the themed collection: Recent Open Access Articles
Open Access Paper

The missing pieces of the PuO2 nanoparticle puzzle

We report a full characterization of PuO2 nanoparticles at the atomic level and probe their local and electronic structure by a variety of methods available at the synchrotron and theoretical approaches.

Graphical abstract: The missing pieces of the PuO2 nanoparticle puzzle
From the themed collection: Recent Open Access Articles
Open Access Paper

Effect of molten sodium nitrate on the decomposition pathways of hydrated magnesium hydroxycarbonate to magnesium oxide probed by in situ total scattering

We use pair distribution function analysis of in situ total scattering data and complementary techniques to reveal how molten NaNO3 modifies the decomposition pathways of a hydrated magnesium carbonate to the formation of MgO.

Graphical abstract: Effect of molten sodium nitrate on the decomposition pathways of hydrated magnesium hydroxycarbonate to magnesium oxide probed by in situ total scattering
From the themed collection: Recent Open Access Articles
Paper

New reflections on hard X-ray photon-in/photon-out spectroscopy

The combination of X-ray absorption with X-ray emission spectroscopy requires careful consideration of the experimental protocol. The article discusses general aspects with examples for bio-catalysis and colloidal magnetic nanoparticles.

Graphical abstract: New reflections on hard X-ray photon-in/photon-out spectroscopy
From the themed collection: Spectroscopy and scattering for chemistry
Paper

The role of pre-nucleation clusters in the crystallization of gold nanoparticles

The gold nanoparticle nucleation stage identified by XAS is accompanied in SAXS by an abrupt shrinkage of the size of molecular pre-nucleation clusters into gold nuclei, which is interpreted as a non-classical nucleation mechanism.

Graphical abstract: The role of pre-nucleation clusters in the crystallization of gold nanoparticles
From the themed collection: Spectroscopy and scattering for chemistry
Open Access Paper

Hard X-ray-based techniques for structural investigations of CO2 methanation catalysts prepared by MOF decomposition

We investigate the structure-activity correlations of methanation catalysts obtained by thermal decomposition of a Ni-based metal-organic framework, using pair distribution function, X-ray absorption spectroscopy and X-ray diffraction.

Graphical abstract: Hard X-ray-based techniques for structural investigations of CO2 methanation catalysts prepared by MOF decomposition
From the themed collection: Recent Open Access Articles
Open Access Paper

In situ X-ray emission and high-resolution X-ray absorption spectroscopy applied to Ni-based bimetallic dry methane reforming catalysts

The effect of cobalt on the catalytic activity of a NiCoO dry methane reforming catalyst was investigated by in situ XES and HERFD XAS. Co is shown to hamper the reduction of the Ni in the NiCoO catalyst by modulation of its electronic structure.

Graphical abstract: In situ X-ray emission and high-resolution X-ray absorption spectroscopy applied to Ni-based bimetallic dry methane reforming catalysts
From the themed collection: Recent Open Access Articles
Open Access Paper

In situ speciation and spatial mapping of Zn products during pulsed laser ablation in liquids (PLAL) by combined synchrotron methods

Material ejection in pulsed laser ablation in liquids is analysed by X-ray in situ methods to resolve particle formation and oxidation.

Graphical abstract: In situ speciation and spatial mapping of Zn products during pulsed laser ablation in liquids (PLAL) by combined synchrotron methods
From the themed collection: Recent Open Access Articles
Paper

Evolution of short-range order in chemically and physically grown thin film bilayer structures for electronic applications

The local atomic structure of two stacked thin films is probed by applying grazing incidence x-ray total scattering at variable incidence angle and resolving pair distribution functions for each individual layer.

Graphical abstract: Evolution of short-range order in chemically and physically grown thin film bilayer structures for electronic applications
From the themed collection: Spectroscopy and scattering for chemistry
Open Access Paper

Molybdenum carbide and oxycarbide from carbon-supported MoO3 nanosheets: phase evolution and DRM catalytic activity assessed by TEM and in situ XANES/XRD methods

Nanosheets of molybdenum(VI) oxide supported on carbon spheres were carburized and utilized for the dry reforming of methane (DRM). A molybdenum oxycarbide phase was identified as active for DRM and characterised by XANES and TEM methods.

Graphical abstract: Molybdenum carbide and oxycarbide from carbon-supported MoO3 nanosheets: phase evolution and DRM catalytic activity assessed by TEM and in situ XANES/XRD methods
From the themed collection: Recent Open Access Articles
Paper

Na-Ion storage in iron hydroxide phosphate hydrate through a reversible crystalline-to-amorphous phase transition

Iron(III) hydroxide phosphate hydrate Fe1.13(PO4)(OH)0.39(H2O)0.61 is investigated for the first time as a Na-ion battery cathode. The material exhibits similar storage capacities for Na- and Li-ions at relatively low current rates (i.e. C/10).

Graphical abstract: Na-Ion storage in iron hydroxide phosphate hydrate through a reversible crystalline-to-amorphous phase transition
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Cubes on a string: a series of linear coordination polymers with cubane-like nodes and dicarboxylate linkers

Crystalline and amorphous cubane-type coordination polymers were synthesized and investigated by X-ray total scattering and single crystal diffraction.

Graphical abstract: Cubes on a string: a series of linear coordination polymers with cubane-like nodes and dicarboxylate linkers
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Bad neighbour, good neighbour: how magnetic dipole interactions between soft and hard ferrimagnetic nanoparticles affect macroscopic magnetic properties in ferrofluids

Hard ferrimagnetic CoFe2O4 nanoparticles become softer in the presence of neighbouring soft ferrimagnetic MnFe2O4 nanoparticles.

Graphical abstract: Bad neighbour, good neighbour: how magnetic dipole interactions between soft and hard ferrimagnetic nanoparticles affect macroscopic magnetic properties in ferrofluids
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Elucidating the relationship between nanoparticle morphology, nuclear/magnetic texture and magnetic performance of sintered SrFe12O19 magnets

The relationship between nanoparticle morphology, self-induced atomic/magnetic texture and magnetic properties of high-performance hexaferrite magnets is elucidated using neutron/X-ray pole figure analysis and neutron/synchrotron powder diffraction.

Graphical abstract: Elucidating the relationship between nanoparticle morphology, nuclear/magnetic texture and magnetic performance of sintered SrFe12O19 magnets
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Exploring the direct synthesis of exchange-spring nanocomposites by reduction of CoFe2O4 spinel nanoparticles using in situ neutron diffraction

In situ neutron powder diffraction (NPD) was employed for investigating gram-scale reduction of hard magnetic CoFe2O4 (spinel) nanoparticles into CoFe2O4/CoFe2 exchange-spring nanocomposites via H2 partial reduction.

Graphical abstract: Exploring the direct synthesis of exchange-spring nanocomposites by reduction of CoFe2O4 spinel nanoparticles using in situ neutron diffraction
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Mapping the redox chemistry of common solvents in solvothermal synthesis through in situ X-ray diffraction

The redox properties of five common solvents under solvothermal conditions are demonstrated through synthesis and characterization of 3d metal based materials.

Graphical abstract: Mapping the redox chemistry of common solvents in solvothermal synthesis through in situ X-ray diffraction
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Surface softening in palladium nanoparticles: effects of a capping agent on vibrational properties

The presence of a capping agent (CTAB) on Pd nanoparticles produces a strong static disorder in the surface region.

Graphical abstract: Surface softening in palladium nanoparticles: effects of a capping agent on vibrational properties
From the themed collection: Spectroscopy and scattering for chemistry
Paper

Core–shell PdCu bimetallic colloidal nanoparticles in Sonogashira cross-coupling reaction: mechanistic insights into the catalyst mode of action

PdCu bimetallic colloidal nanoparticles-catalyzed Sonogashira coupling is demonstrated proceed by a quasi-homogeneous pathway with involvement of an alkynylcopper intermediate.

Graphical abstract: Core–shell PdCu bimetallic colloidal nanoparticles in Sonogashira cross-coupling reaction: mechanistic insights into the catalyst mode of action
From the themed collection: Spectroscopy and scattering for chemistry
21 items

About this collection

Guest Edited by Kirsten M. Ø. Jensen (University of Copenhagen, Denmark), Dorota Koziej (University of Hamburg, Germany) and Serena DeBeer (Max Planck Institute for Chemical Energy Conversion, Germany).

This online themed collection focuses on new studies taking advantage of in situ synchrotron and neutron techniques to elucidate mechanisms for material formation and function, including catalysts, batteries, gas storage materials, magnetic nanomaterials and thin films.

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