Sparse ab initio x-ray transmission spectrotomography for nanoscopic compositional analysis of functional materials.

Science Advances
Zirui GaoJohannes Ihli

Abstract

The performance of functional materials is either driven or limited by nanoscopic heterogeneities distributed throughout the material's volume. To better our understanding of these materials, we need characterization tools that allow us to determine the nature and distribution of these heterogeneities in their native geometry in 3D. Here, we introduce a method based on x-ray near-edge spectroscopy, ptychographic x-ray computed nanotomography, and sparsity techniques. The method allows the acquisition of quantitative multimodal tomograms of representative sample volumes at sub-30 nm half-period spatial resolution within practical acquisition times, which enables local structure refinements in complex geometries. To demonstrate the method's capabilities, we investigated the transformation of vanadium phosphorus oxide catalysts with industrial use. We observe changes from the micrometer to the atomic level and the formation of a location-specific defect so far only theorized. These results led to a reevaluation of these catalysts used in the production of plastics.

References

Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jun 22, 2005·Journal of Synchrotron Radiation·B Ravel, M Newville
Aug 30, 2005·Journal of Structural Biology·Marin van Heel, Michael Schatz
Apr 22, 2008·Nature Materials·Pierre BleuetPhilippe Walter
Jul 19, 2008·Science·Pierre ThibaultFranz Pfeiffer
Mar 1, 2009·Journal of Electron Spectroscopy and Related Phenomena·M R HowellsD Starodub
Sep 25, 2010·Nature·Martin DierolfFranz Pfeiffer
Apr 29, 2011·Journal of Synchrotron Radiation·Sergey GorelickChristian David
Jan 25, 2014·Scientific Reports·M HollerO Bunk
May 31, 2014·Science·Benjamin A PalmerStephen P Collins
Jun 13, 2014·Optics Express·Xiaojing HuangYong S Chu
Nov 20, 2014·Physical Chemistry Chemical Physics : PCCP·S W T PriceJ F W Mosselmans
May 2, 2015·Science·Jianwei MiaoMargaret M Murnane
Jul 4, 2015·Scientific Reports·J W GibbsP W Voorhees
Jul 1, 2016·Journal of Synchrotron Radiation·Federico BenziEleonora Paris
Aug 9, 2017·ACS Nano·Clément Y J Hémonnot, Sarah Köster
Oct 6, 2017·Angewandte Chemie·Johannes IhliJeroen A van Bokhoven
Mar 4, 2018·Nature Communications·Young-Sang YuDavid A Shapiro
Aug 26, 2018·Nature Communications·Dongjin KimHyunjung Kim
Jun 6, 2019·Optics Express·Michal OdstrčilMirko Holler
Aug 21, 2019·Nature Materials·Theodosios FamprikisChristian Masquelier
Dec 25, 2019·Optics Express·Michal OdstrčilManuel Guizar-Sicairos
Mar 11, 2020·Journal of Synchrotron Radiation·Mirko HollerSarah H Shahmoradian
Apr 14, 2020·Journal of Applied Crystallography·Klaus WakonigManuel Guizar-Sicairos
Oct 9, 2020·Chemical Communications : Chem Comm·Zirui GaoJohannes Ihli

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Software Mentioned

PtychoShelves
SART
XTNES
PXCT

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.