1
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Derelli D, Frank K, Grote L, Mancini F, Dippel AC, Gutowski O, Nickel B, Koziej D. Direct Synthesis of CuPd Icosahedra Supercrystals Studied by In Situ X-Ray Scattering. Small 2024:e2311714. [PMID: 38501853 DOI: 10.1002/smll.202311714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/20/2024] [Indexed: 03/20/2024]
Abstract
Nanocrystal self-assembly into supercrystals provides a versatile platform for creating novel materials and devices with tailored properties. While common self-assembly strategies imply the use of purified nanoparticles after synthesis, conversion of chemical precursors directly into nanocrystals and then supercrystals in simple procedures has been rarely reported. Here, the nucleation and growth of CuPd icosahedra and their consecutive assembly into large closed-packed face-centered cubic (fcc) supercrystals are studied. To this end, the study simultaneously and in situ measures X-ray total scattering with pair distribution function analysis (TS-PDF) and small-angle X-ray scattering (SAXS). It is found that the supercrystals' formation is preceded by an intermediate dense phase of nanocrystals displaying short-range order (SRO). It is further shown that the organization of oleic acid/oleylamine surfactants into lamellar structures likely drives the emergence of the SRO phase and later of the supercrystals by reducing the volume accessible to particle diffusion. The supercrystals' formation as well as their disassembly are triggered by temperature. The study demonstrates that ordering of solvent molecules can be crucial in the direct synthesis of supercrystals. The study also provides a general approach to investigate novel preparation routes of supercrystals in situ and across several length scales via X-ray scattering.
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Affiliation(s)
- Davide Derelli
- Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, University of Hamburg, 22761, Hamburg, Germany
| | - Kilian Frank
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, 80539, Munich, Germany
| | - Lukas Grote
- Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, University of Hamburg, 22761, Hamburg, Germany
| | - Federica Mancini
- Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, University of Hamburg, 22761, Hamburg, Germany
- Current affiliation: National Research Council of Italy, Institute of Science, Technology and Sustainability for Ceramics, CNR - ISSMC (former ISTEC), 64 I-48018, Via Granarolo, FAENZA (RA), Italy
| | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Bert Nickel
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, 80539, Munich, Germany
| | - Dorota Koziej
- Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, University of Hamburg, 22761, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany
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2
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Derelli D, Caddeo F, Frank K, Krötzsch K, Ewerhardt P, Krüger M, Medicus S, Klemeyer L, Skiba M, Ruhmlieb C, Gutowski O, Dippel AC, Parak WJ, Nickel B, Koziej D. Photodegradation of CuBi 2 O 4 Films Evidenced by Fast Formation of Metallic Bi using Operando Surface-sensitive X-ray Scattering. Angew Chem Int Ed Engl 2023; 62:e202307948. [PMID: 37635657 DOI: 10.1002/anie.202307948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/28/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
CuBi2 O4 has recently emerged as a promising photocathode for photo-electrochemical (PEC) water splitting. However, its fast degradation under operation currently poses a limit to its application. Here, we report a novel method to study operando the semiconductor-electrolyte interface during PEC operation by surface-sensitive high-energy X-ray scattering. We find that a fast decrease in the generated photocurrents correlates directly with the formation of a metallic Bi phase. We further show that the slower formation of metallic Cu, as well as the dissolution of the electrode in contact with the electrolyte, further affect the CuBi2 O4 activity and morphology. Our study provides a comprehensive picture of the degradation mechanisms affecting CuBi2 O4 electrodes under operation and poses the methodological basis to investigate the photocorrosion processes affecting a wide range of PEC materials.
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Affiliation(s)
- Davide Derelli
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Francesco Caddeo
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Kilian Frank
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Kilian Krötzsch
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Patrick Ewerhardt
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Marco Krüger
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Sophie Medicus
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Lars Klemeyer
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Marvin Skiba
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Charlotte Ruhmlieb
- University of Hamburg, Institute of Physical Chemistry, Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | | | - Wolfgang J Parak
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Bert Nickel
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Dorota Koziej
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
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3
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Brummel O, Jacobse L, Simanenko A, Deng X, Geile S, Gutowski O, Vonk V, Lykhach Y, Stierle A, Libuda J. Chemical and Structural In-Situ Characterization of Model Electrocatalysts by Combined Infrared Spectroscopy and Surface X-ray Diffraction. J Phys Chem Lett 2023; 14:8820-8827. [PMID: 37750826 DOI: 10.1021/acs.jpclett.3c01777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
New diagnostic approaches are needed to drive progress in the field of electrocatalysis and address the challenges of developing electrocatalytic materials with superior activity, selectivity, and stability. To this end, we developed a versatile experimental setup that combines two complementary in-situ techniques for the simultaneous chemical and structural analysis of planar electrodes under electrochemical conditions: high-energy surface X-ray diffraction (HE-SXRD) and infrared reflection absorption spectroscopy (IRRAS). We tested the potential of the experimental setup by performing a model study in which we investigated the oxidation of preadsorbed CO on a Pt(111) surface as well as the oxidation of the Pt(111) electrode itself. In a single experiment, we were able to identify the adsorbates, their potential dependent adsorption geometries, the effect of the adsorbates on the surface morphology, and the structural evolution of Pt(111) during surface electro-oxidation. In a broader perspective, the combined setup has a high application potential in the field of energy conversion and storage.
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Affiliation(s)
- Olaf Brummel
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Leon Jacobse
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Alexander Simanenko
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Xin Deng
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Simon Geile
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Vedran Vonk
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Yaroslava Lykhach
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Andreas Stierle
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
- Fachbereich Physik, Universität Hamburg, Jungiusstraße 11, 20355 Hamburg, Germany
| | - Jörg Libuda
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
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4
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Roelsgaard M, Kløve M, Christensen R, Bertelsen AD, Broge NLN, Kantor I, Sørensen DR, Dippel AC, Banerjee S, Zimmermann MV, Glaevecke P, Gutowski O, Jørgensen MRV, Iversen BB. A reactor for time-resolved X-ray studies of nucleation and growth during solvothermal synthesis. J Appl Crystallogr 2023; 56:581-588. [PMID: 37284256 PMCID: PMC10241040 DOI: 10.1107/s1600576723002339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/09/2023] [Indexed: 06/08/2023] Open
Abstract
Understanding the nucleation and growth mechanisms of nanocrystals under hydro- and solvothermal conditions is key to tailoring functional nanomaterials. High-energy and high-flux synchrotron radiation is ideal for characterization by powder X-ray diffraction and X-ray total scattering in real time. Different versions of batch-type cell reactors have been employed in this work, exploiting the robustness of polyimide-coated fused quartz tubes with an inner diameter of 0.7 mm, as they can withstand pressures up to 250 bar and temperatures up to 723 K for several hours. Reported here are recent developments of the in situ setups available for general users on the P21.1 beamline at PETRA III and the DanMAX beamline at MAX IV to study nucleation and growth phenomena in solvothermal synthesis. It is shown that data suitable for both reciprocal-space Rietveld refinement and direct-space pair distribution function refinement can be obtained on a timescale of 4 ms.
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Affiliation(s)
- Martin Roelsgaard
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
- MAX IV Laboratory, Lund University, 224 84 Lund, Sweden
| | - Magnus Kløve
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Rasmus Christensen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Andreas D. Bertelsen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Nils L. N. Broge
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Innokenty Kantor
- MAX IV Laboratory, Lund University, 224 84 Lund, Sweden
- Department of Physics, Technical University of Denmark, 2880 Kongens Lyngby, Denmark
| | - Daniel Risskov Sørensen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
- MAX IV Laboratory, Lund University, 224 84 Lund, Sweden
| | - Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Soham Banerjee
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | | | - Philipp Glaevecke
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Mads Ry Vogel Jørgensen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
- MAX IV Laboratory, Lund University, 224 84 Lund, Sweden
| | - Bo Brummerstedt Iversen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
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5
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Li T, Dresselhaus JL, Ivanov N, Prasciolu M, Fleckenstein H, Yefanov O, Zhang W, Pennicard D, Dippel AC, Gutowski O, Villanueva-Perez P, Chapman HN, Bajt S. Dose-efficient scanning Compton X-ray microscopy. Light Sci Appl 2023; 12:130. [PMID: 37248250 DOI: 10.1038/s41377-023-01176-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/31/2023]
Abstract
The highest resolution of images of soft matter and biological materials is ultimately limited by modification of the structure, induced by the necessarily high energy of short-wavelength radiation. Imaging the inelastically scattered X-rays at a photon energy of 60 keV (0.02 nm wavelength) offers greater signal per energy transferred to the sample than coherent-scattering techniques such as phase-contrast microscopy and projection holography. We present images of dried, unstained, and unfixed biological objects obtained by scanning Compton X-ray microscopy, at a resolution of about 70 nm. This microscope was realised using novel wedged multilayer Laue lenses that were fabricated to sub-ångström precision, a new wavefront measurement scheme for hard X rays, and efficient pixel-array detectors. The doses required to form these images were as little as 0.02% of the tolerable dose and 0.05% of that needed for phase-contrast imaging at similar resolution using 17 keV photon energy. The images obtained provide a quantitative map of the projected mass density in the sample, as confirmed by imaging a silicon wedge. Based on these results, we find that it should be possible to obtain radiation damage-free images of biological samples at a resolution below 10 nm.
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Affiliation(s)
- Tang Li
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany
| | | | - Nikolay Ivanov
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Mauro Prasciolu
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Holger Fleckenstein
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Wenhui Zhang
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - David Pennicard
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | | | - Olof Gutowski
- Deutsches Elektronen Synchrotron DESY, 22607, Hamburg, Germany
| | | | - Henry N Chapman
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany.
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany.
- Department of Physics, Universität Hamburg, 22761, Hamburg, Germany.
| | - Saša Bajt
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany.
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany.
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6
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Wollak B, Espinoza D, Dippel AC, Sturm M, Vrljic F, Gutowski O, Nielsen IG, Sheppard TL, Korup O, Horn R. Catalytic reactor for operando spatially resolved structure-activity profiling using high-energy X-ray diffraction. J Synchrotron Radiat 2023; 30:571-581. [PMID: 37042662 PMCID: PMC10161877 DOI: 10.1107/s1600577523001613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 02/22/2023] [Indexed: 05/06/2023]
Abstract
In heterogeneous catalysis, operando measurements probe catalysts in their active state and are essential for revealing complex catalyst structure-activity relationships. The development of appropriate operando sample environments for spatially resolved studies has come strongly into focus in recent years, particularly when coupled to the powerful and multimodal characterization tools available at synchrotron light sources. However, most catalysis studies at synchrotron facilities only measure structural information about the catalyst in a spatially resolved manner, whereas gas analysis is restricted to the reactor outlet. Here, a fully automated and integrated catalytic profile reactor setup is shown for the combined measurement of temperature, gas composition and high-energy X-ray diffraction (XRD) profiles, using the oxidative dehydrogenation of C2H6 to C2H4 over MoO3/γ-Al2O3 as a test system. The profile reactor methodology was previously developed for X-ray absorption spectroscopy and is here extended for operando XRD. The profile reactor is a versatile and accessible research tool for combined spatially resolved structure-activity profiling, enabling the use of multiple synchrotron-based characterization methods to promote a knowledge-based optimization of a wide range of catalytic systems in a time- and resource-efficient way.
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Affiliation(s)
- Birte Wollak
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Diego Espinoza
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Ann Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Marina Sturm
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Filip Vrljic
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Ida G Nielsen
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Thomas L Sheppard
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344 Baden-Württemberg, Germany
| | - Oliver Korup
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Raimund Horn
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
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7
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Simutis G, Bollhalder A, Zolliker M, Küspert J, Wang Q, Das D, Van Leeuwen F, Ivashko O, Gutowski O, Philippe J, Kracht T, Glaevecke P, Adachi T, V Zimmermann M, Van Petegem S, Luetkens H, Guguchia Z, Chang J, Sassa Y, Bartkowiak M, Janoschek M. In situ uniaxial pressure cell for x-ray and neutron scattering experiments. Rev Sci Instrum 2023; 94:013906. [PMID: 36725613 DOI: 10.1063/5.0114892] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/24/2022] [Indexed: 06/18/2023]
Abstract
We present an in situ uniaxial pressure device optimized for small angle x-ray and neutron scattering experiments at low-temperatures and high magnetic fields. A stepper motor generates force, which is transmitted to the sample via a rod with an integrated transducer that continuously monitors the force. The device has been designed to generate forces up to 200 N in both compressive and tensile configurations, and a feedback control allows operating the system in a continuous-pressure mode as the temperature is changed. The uniaxial pressure device can be used for various instruments and multiple cryostats through simple and exchangeable adapters. It is compatible with multiple sample holders, which can be easily changed depending on the sample properties and the desired experiment and allow rapid sample changes.
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Affiliation(s)
- G Simutis
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A Bollhalder
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Zolliker
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - J Küspert
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Q Wang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - D Das
- Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - F Van Leeuwen
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - O Ivashko
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - O Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - J Philippe
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - T Kracht
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - P Glaevecke
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - T Adachi
- Department of Engineering and Applied Sciences, Sophia University, Chiyoda, Tokyo, 102-8554, Japan
| | - M V Zimmermann
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - S Van Petegem
- Structure and Mechanics of Advanced Materials, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - H Luetkens
- Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - Z Guguchia
- Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Y Sassa
- Department of Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| | - M Bartkowiak
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - M Janoschek
- Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
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8
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Espinoza DA, Wollak B, Sheppard T, Dippel AC, Sturm M, Gutowski O, Schmidt M, Korup O, Horn R. Catalytic Profile Reactor for Multimodal Operando Measurements during Periodic Operation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Diego Astudillo Espinoza
- Hamburg University of Technology: Technische Universitat Hamburg Institute of Chemical Reaction Engineering GERMANY
| | - Birte Wollak
- Hamburg University of Technology: Technische Universitat Hamburg Institute of Chemical Reaction Engineering GERMANY
| | - Thomas Sheppard
- Karlsruhe Institute of Technology: Karlsruher Institut fur Technologie Institute of Chemical Technology and Polymer Chemistry GERMANY
| | - Ann-Christin Dippel
- DESY: Deutsches Elektronen-Synchrotron High Energy Materials Science GERMANY
| | - Marina Sturm
- DESY: Deutsches Elektronen-Synchrotron PETRA III GERMANY
| | - Olof Gutowski
- DESY: Deutsches Elektronen-Synchrotron PETRA III GERMANY
| | - Michael Schmidt
- Hamburg University of Technology: Technische Universitat Hamburg REACNOSTICS GmbH GERMANY
| | - Oliver Korup
- Hamburg University of Technology: Technische Universitat Hamburg Institute of Chemical Reaction Engineering GERMANY
| | - Raimund Horn
- Hamburg University of Technology: Technische Universitat Hamburg Institute of Chemical Reaction Engineering Eißendorfer Straße 38 21073 Hamburg GERMANY
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9
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Sturm M, Gutowski O, Brezesinski G. The Effect of pH on the Structure and Lateral Organization of Cardiolipin in Langmuir Monolayers. Chemphyschem 2022; 23:e202200218. [PMID: 35920819 DOI: 10.1002/cphc.202200218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/17/2022] [Indexed: 01/07/2023]
Abstract
Cardiolipin (CL) is a unique phospholipid featuring a dimeric structure. With its four alkyl chains, it has a large hydrophobic region and the charged hydrophilic head group is relatively small. Biological membranes exhibit CL exclusively in the inner bacterial and mitochondrial membranes. Alteration of CL packing can lead to structural changes and membrane instabilities. One environmental influence is the change in pH. Since the acidic properties of the phosphate head groups remain still controversial in literature, this work focusses on the influence of pH on the ionization degree of CL. For the analyses, surface pressure (π) - molecular area (A) isotherm experiments were combined with total reflection X-ray fluorescence (TRXF) and grazing incidence X-ray diffraction (GIXD). Continuous ionization with a high CL packing density was observed in the monolayer over a wide pH range. No individual pKa values can be assigned to the two phosphate groups, but mutual influence is observed.
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Affiliation(s)
- Marina Sturm
- Photon Science, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Olof Gutowski
- Photon Science, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Gerald Brezesinski
- Institute of Applied Dermatopharmacy, Martin Luther University Halle-Wittenberg, Weinbergweg 23, 06120, Halle (Saale), Germany
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10
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Nielsen I, Ivashko O, Gutowski O, Dippel A, Zimmermann M. High-energy X-ray diffraction for physics and chemistry on beamlines P07 and P21.1 at PETRA III, DESY. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322089902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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11
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Jacobse L, Schuster R, Pfrommer J, Deng X, Dolling S, Weber T, Gutowski O, Dippel AC, Brummel O, Lykhach Y, Over H, Libuda J, Vonk V, Stierle A. A combined rotating disk electrode-surface x-ray diffraction setup for surface structure characterization in electrocatalysis. Rev Sci Instrum 2022; 93:065111. [PMID: 35777992 DOI: 10.1063/5.0087864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
Characterizing electrode surface structures under operando conditions is essential for fully understanding structure-activity relationships in electrocatalysis. Here, we combine in a single experiment high-energy surface x-ray diffraction as a characterizing technique with a rotating disk electrode to provide steady state kinetics under electrocatalytic conditions. Using Pt(111) and Pt(100) model electrodes, we show that full crystal truncation rod measurements are readily possible up to rotation rates of 1200 rpm. Furthermore, we discuss possibilities for both potentiostatic as well as potentiodynamic measurements, demonstrating the versatility of this technique. These different modes of operation, combined with the relatively simple experimental setup, make the combined rotating disk electrode-surface x-ray diffraction experiment a powerful technique for studying surface structures under operando electrocatalytic conditions.
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Affiliation(s)
- Leon Jacobse
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Ralf Schuster
- Interface Research and Catalysis, Erlangen Center for Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Johannes Pfrommer
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Xin Deng
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Silvan Dolling
- Fachbereich Physik, Universität Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - Tim Weber
- Institute of Physical Chemistry and Center for Materials Research, Justus Liebig Universität Gießen, Heinrich-Buff-Ring 17, 35392 Gießen, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | | | - Olaf Brummel
- Interface Research and Catalysis, Erlangen Center for Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Yaroslava Lykhach
- Interface Research and Catalysis, Erlangen Center for Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Herbert Over
- Institute of Physical Chemistry and Center for Materials Research, Justus Liebig Universität Gießen, Heinrich-Buff-Ring 17, 35392 Gießen, Germany
| | - Jörg Libuda
- Interface Research and Catalysis, Erlangen Center for Interface Research and Catalysis, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Vedran Vonk
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Andreas Stierle
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
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12
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Indra A, Mukherjee S, Gutowski O, Zimmermann MV, Majumdar S, Giri S. Structural correlation to ferroelectric order, non-Griffiths like phase and magnetocaloric effect in YbCrO 4. J Phys Condens Matter 2022; 34:155402. [PMID: 35073536 DOI: 10.1088/1361-648x/ac4e46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
We report a ferroelectric order around ∼99 K (TFE), which is considerably above the long range ferrimagnetic order at 25 K (TN). The value of saturation electric polarization is considerable as ∼570μC m-2for a poling field of 5 kV cm-1. The ferroelectric order is associated with a significant magnetoelectric coupling below ∼90 K. A weak signature ofTFEis observed in the dielectric constant, which is associated with a linear magnetodielectric response at 18 K(<TN). A transition to a polar structure has been correlated with the occurrence of ferroelectric order. A non-Griffiths like phase is observed around ∼48 K, which is also linked with the structural distortion. A reasonable value of the magnetic entropy change of 5.07 J Kg-1 K-1is noted atTNfor a change in field of 50 kOe, which involves a strong magnetoelastic coupling. The results indicate considerable structural instabilities, which is linked with the observed multifunctional properties of YbCrO4.
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Affiliation(s)
- A Indra
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Department of Physics, Srikrishna College, Bagula, Nadia, WB 741502, India
| | - S Mukherjee
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - O Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - M V Zimmermann
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - S Majumdar
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - S Giri
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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13
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Konôpková Z, Morgenroth W, Husband R, Giordano N, Pakhomova A, Gutowski O, Wendt M, Glazyrin K, Ehnes A, Delitz JT, Goncharov AF, Prakapenka VB, Liermann HP. Laser heating system at the Extreme Conditions Beamline, P02.2, PETRA III. J Synchrotron Radiat 2021; 28:1747-1757. [PMID: 34738928 PMCID: PMC8570206 DOI: 10.1107/s1600577521009231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
A laser heating system for samples confined in diamond anvil cells paired with in situ X-ray diffraction measurements at the Extreme Conditions Beamline of PETRA III is presented. The system features two independent laser configurations (on-axis and off-axis of the X-ray path) allowing for a broad range of experiments using different designs of diamond anvil cells. The power of the continuous laser source can be modulated for use in various pulsed laser heating or flash heating applications. An example of such an application is illustrated here on the melting curve of iron at megabar pressures. The optical path of the spectroradiometry measurements is simulated with ray-tracing methods in order to assess the level of present aberrations in the system and the results are compared with other systems, that are using simpler lens optics. Based on the ray-tracing the choice of the first achromatic lens and other aspects for accurate temperature measurements are evaluated.
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Affiliation(s)
- Zuzana Konôpková
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
- European XFEL GmbH, Holzkoppel 4, Schenefeld, Germany
| | - Wolfgang Morgenroth
- Institut für Geowissenschaften, Kristallographie/Mineralogie, Goethe Universität Frankfurt am Main, Altenhöferallee 1, D-60438 Frankfurt am Main, Germany
| | - Rachel Husband
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Nico Giordano
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Anna Pakhomova
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Mario Wendt
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Konstantin Glazyrin
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Anita Ehnes
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | | | - Alexander F. Goncharov
- Earth and Planets Laboratory, Carnegie Institution for Science, 5251 Broad Branch Rd NW, Washington, DC 20015, USA
| | - Vitali B. Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - Hanns-Peter Liermann
- Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
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14
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Szczerba D, Tan D, Do JL, Titi HM, Mouhtadi S, Chaumont D, Del Carmen Marco de Lucas M, Geoffroy N, Meyer M, Rousselin Y, Hudspeth JM, Schwanen V, Spoerk-Erdely P, Dippel AC, Ivashko O, Gutowski O, Glaevecke P, Bazhenov V, Arhangelskis M, Halasz I, Friščić T, Kimber SAJ. Real-Time Observation of "Soft" Magic-Size Clusters during Hydrolysis of the Model Metallodrug Bismuth Disalicylate. J Am Chem Soc 2021; 143:16332-16336. [PMID: 34582201 DOI: 10.1021/jacs.1c07186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Colloidal bismuth therapeutics have been used for hundreds of years, yet remain mysterious. Here we report an X-ray pair distribution function (PDF) study of the solvolysis of bismuth disalicylate, a model for the metallodrug bismuth subsalicylate (Pepto-Bismol). This reveals catalysis by traces of water, followed by multistep cluster growth. The ratio of the two major species, {Bi9O7} and {Bi38O44}, depends on exposure to air, time, and the solvent. The solution-phase cluster structures are of significantly higher symmetry in comparison to solid-state analogues, with reduced off-center Bi3+ displacements. This explains why such "magic-size" clusters can be both stable enough to crystallize and sufficiently labile for further growth.
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Affiliation(s)
- Daniel Szczerba
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | - Davin Tan
- Department of Chemistry, McGill University, Montréal, Québec H3A 0B8, Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University, Montréal, Québec H3A 0B8, Canada
| | - Hatem M Titi
- Department of Chemistry, McGill University, Montréal, Québec H3A 0B8, Canada
| | - Siham Mouhtadi
- Université Franche-Comté, Insitut UTINAM-Équipe MSF, and Université Bourgogne Franche-Comté, 25030 Besançon, France
| | - Denis Chaumont
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | - María Del Carmen Marco de Lucas
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | - Nicolas Geoffroy
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | - Michel Meyer
- Insitut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche Comté, 9 Avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | - Yoann Rousselin
- Insitut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302, CNRS, Université Bourgogne Franche Comté, 9 Avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
| | | | | | - Petra Spoerk-Erdely
- Department of Materials Science, Montanuniversität Leoben, Franz Josef-Strasse 18, 8700 Leoben, Austria
| | - Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 95, 22603 Hamburg, Germany
| | - Oleh Ivashko
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 95, 22603 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 95, 22603 Hamburg, Germany
| | - Philipp Glaevecke
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 95, 22603 Hamburg, Germany
| | | | - Mihails Arhangelskis
- Faculty of Chemistry, University of Warsaw, 1 Pasteura Street, 02-093 Warsaw, Poland
| | - Ivan Halasz
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Tomislav Friščić
- Department of Chemistry, McGill University, Montréal, Québec H3A 0B8, Canada
| | - Simon A J Kimber
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université Bourgogne Franche-Comté, 9 avenue Alain Savary, BP 47870, F-21078 Dijon Cedex, France
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15
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Vamvakeros A, Matras D, Ashton TE, Coelho AA, Dong H, Bauer D, Odarchenko Y, Price SWT, Butler KT, Gutowski O, Dippel AC, Zimmerman MV, Darr JA, Jacques SDM, Beale AM. Cycling Rate-Induced Spatially-Resolved Heterogeneities in Commercial Cylindrical Li-Ion Batteries. Small Methods 2021; 5:e2100512. [PMID: 34928070 DOI: 10.1002/smtd.202100512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/29/2021] [Indexed: 06/14/2023]
Abstract
Synchrotron high-energy X-ray diffraction computed tomography has been employed to investigate, for the first time, commercial cylindrical Li-ion batteries electrochemically cycled over the two cycling rates of C/2 and C/20. This technique yields maps of the crystalline components and chemical species as a cross-section of the cell with high spatiotemporal resolution (550 × 550 images with 20 × 20 × 3 µm3 voxel size in ca. 1 h). The recently developed Direct Least-Squares Reconstruction algorithm is used to overcome the well-known parallax problem and led to accurate lattice parameter maps for the device cathode. Chemical heterogeneities are revealed at both electrodes and are attributed to uneven Li and current distributions in the cells. It is shown that this technique has the potential to become an invaluable diagnostic tool for real-world commercial batteries and for their characterization under operating conditions, leading to unique insights into "real" battery degradation mechanisms as they occur.
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Affiliation(s)
- Antonis Vamvakeros
- Finden Limited, Merchant House, 5 East St Helens Street, Abingdon, OX14 5EG, UK
| | - Dorota Matras
- The Faraday Institution, Quad One, Harwell Science and Innovation Campus, Didcot, OX11 0RA, UK
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK
| | - Thomas E Ashton
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Alan A Coelho
- Coelho Software, 72 Cedar Street, Wynnum, Brisbane, Queensland, 4178, Australia
| | - Hongyang Dong
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Dustin Bauer
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Yaroslav Odarchenko
- Finden Limited, Merchant House, 5 East St Helens Street, Abingdon, OX14 5EG, UK
| | - Stephen W T Price
- Finden Limited, Merchant House, 5 East St Helens Street, Abingdon, OX14 5EG, UK
| | - Keith T Butler
- SciML, Scientific Computer Division, Rutherford Appleton Laboratory, Harwell, OX11 0QX, UK
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany
| | - Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany
| | | | - Jawwad A Darr
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Simon D M Jacques
- Finden Limited, Merchant House, 5 East St Helens Street, Abingdon, OX14 5EG, UK
| | - Andrew M Beale
- Finden Limited, Merchant House, 5 East St Helens Street, Abingdon, OX14 5EG, UK
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0FA, UK
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16
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Dippel AC, Gutowski O, Roelsgaard M, Iversen BB, Sturm M, von Zimmermann M. Total scattering at grazing incidence to study real thin-film systems at variable temperature. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321094162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Dippel AC, Gutowski O, Roelsgaard M, Iversen BB, Sturm M, von Zimmermann M. In situ grazing-incidence total scattering: new in situ capabilities for pair distribution function analysis of thin films. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321098512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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18
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Chatterjee A, Indra A, Gutowski O, Zimmerman MV, Majumdar S, Giri S. Significant magneto-elastic coupling at Griffiths-like phase boundaries in low dimensional oxides, ASb 2O 6( A=Ni and Mn). J Phys Condens Matter 2021; 33:195701. [PMID: 33542167 DOI: 10.1088/1361-648x/abe350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
The compounds, NiSb2O6(NSO) and MnSb2O6(MSO) attract the community for the quasi one-dimensional and layered structure composed of Ni2+and Mn2+, which orders antiferromagnetically atTN= 6.7 and 12 K, respectively. Here, we report the Griffiths-like phase much aboveTNin the range of 37-85 K and 25-80 K for NSO and MSO, respectively. The dc magnetization results indicate the Griffiths-like phase, following the modified Curie-Weiss law. The magneto-capacitive responses for both the compounds show anomalies at the onset of the Griffiths-like phase. Intriguingly, the low temperature synchrotron diffraction results are conclusive for determining the singularities for both the compounds. Interplay between the low-dimensionality, magnetic frustration, and magneto-elastic coupling correlates the observed short range ordered state, which is suggested as a Griffiths-like phase, aboveTNfor both the compounds.
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Affiliation(s)
- A Chatterjee
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - A Indra
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Department of Physics, Sri Krishna College, Bagula, Nadia, W.B. 741502, India
| | - O Gutowski
- Deutsches Elektronen-Synchrotron, Notkestraβe 85, 22607 Hamburg, Germany
| | - M V Zimmerman
- Deutsches Elektronen-Synchrotron, Notkestraβe 85, 22607 Hamburg, Germany
| | - S Majumdar
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - S Giri
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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19
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Villanueva-Perez P, Fleckenstein H, Prasciolu M, Murray KT, Domaracký M, Gregorič K, Mariani V, Gelisio L, Kuhn M, Hannappel J, Yefanov O, Ivanov N, Sarrou I, Pennicard D, Becker J, von Zimmermann M, Gutowski O, Dippel AC, Chapman HN, Bajt S. Scanning Compton X-ray microscopy. Opt Lett 2021; 46:1920-1923. [PMID: 33857104 DOI: 10.1364/ol.421232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
X-ray microscopy offers the opportunity to image biological and radiosensitive materials without special sample preparations, bridging optical and electron microscopy capabilities. However, the performance of such microscopes, when imaging radiosensitive samples, is not limited by their intrinsic resolution, but by the radiation damage induced on such samples. Here, we demonstrate a novel, to the best of our knowledge, radio-efficient microscope, scanning Compton X-ray microscopy (SCXM), which uses coherently and incoherently (Compton) scattered photons to minimize the deposited energy per unit of mass for a given imaging signal. We implemented SCXM, using lenses capable of efficiently focusing 60 keV X-ray photons into the sub-micrometer scale, and probe its radio-efficient capabilities. SCXM, when implemented in high-energy diffraction-limited storage rings, e.g., European Synchrotron Radiation Facility Extremely Brilliant Source and PETRA IV, will open the opportunity to explore the nanoscale of unstained, unsectioned, and undamaged radiosensitive materials.
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20
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Winkler B, Juarez-Arellano E, Morgenroth W, Barkov A, Dippel AC, Zimmermann M, Ivashko O, Gutowski O. Pt2AuCuNiSn, a new noble metal single-phase high entropy alloy. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Debnath A, Mandal PK, Sarma A, Gutowski O. Effect of silver nanoparticle doping on the physicochemical properties of a room temperature ferroelectric liquid crystal mixture. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Vamvakeros A, Coelho AA, Matras D, Dong H, Odarchenko Y, Price SWT, Butler KT, Gutowski O, Dippel AC, Zimmermann M, Martens I, Drnec J, Beale AM, Jacques SDM. DLSR: a solution to the parallax artefact in X-ray diffraction computed tomography data. J Appl Crystallogr 2020. [DOI: 10.1107/s1600576720013576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
A new tomographic reconstruction algorithm is presented, termed direct least-squares reconstruction (DLSR), which solves the well known parallax problem in X-ray-scattering-based experiments. The parallax artefact arises from relatively large samples where X-rays, scattered from a scattering angle 2θ, arrive at multiple detector elements. This phenomenon leads to loss of physico-chemical information associated with diffraction peak shape and position (i.e. altering the calculated crystallite size and lattice parameter values, respectively) and is currently the major barrier to investigating samples and devices at the centimetre level (scale-up problem). The accuracy of the DLSR algorithm has been tested against simulated and experimental X-ray diffraction computed tomography data using the TOPAS software.
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23
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Orava J, Kosiba K, Han X, Soldatov I, Gutowski O, Ivashko O, Dippel AC, Zimmermann MV, Rothkirch A, Bednarcik J, Kühn U, Siegel H, Ziller S, Horst A, Peukert K, Voigtländer R, Lindackers D, Kaban I. Fast-current-heating devices to study in situ phase formation in metallic glasses by using high-energy synchrotron radiation. Rev Sci Instrum 2020; 91:073901. [PMID: 32752795 DOI: 10.1063/5.0005732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Details of fast-resistive-heating setups, controlled heating ranging from ∼101 K s-1 to ∼103 K s-1, to study in situ phase transformations (on heating and on cooling) in metallic glasses by high-energy synchrotron x-ray diffraction are discussed. Both setups were designed and custom built at the Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden) and have been implemented at the P02.1 Powder Diffraction and Total Scattering Beamline and the P21.1 Swedish Materials Science Beamline at PETRA III storage ring, DESY, Hamburg. The devices are interchangeable at both beamlines. Joule heating is triggered automatically and is timed with the incident beam and detector. The crystallization process can be controlled via a feedback circuit by monitoring the change in the time-dependent resistivity and temperature of glasses. Different ambient atmospheres, such as vacuum and inert gases (He and Ar), can be used to control oxidation and cooling. The main focus of these devices is on understanding the crystallization mechanism and kinetics in metallic glasses, which are brittle and for which fast heating gives defined glass-crystal composites with enhanced plasticity. As an example, phase-transformation sequence(s) in a prototyped Cu-Zr-based metallic glass is described on heating, and a crystalline phase beneficial to the plasticity is identified.
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Affiliation(s)
- Jiri Orava
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
| | - Konrad Kosiba
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
| | - Xiaoliang Han
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
| | - Ivan Soldatov
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - Oleh Ivashko
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - Martin V Zimmermann
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - André Rothkirch
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - Jozef Bednarcik
- Deutsches Elektronen-Synchrotron DESY, Notkestraβe 85, Hamburg 22603, Germany
| | - Uta Kühn
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
| | | | | | | | | | | | | | - Ivan Kaban
- IFW Dresden, Helmholtzstraβe 20, Dresden 01069, Germany
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Dippel AC, Gutowski O, Klemeyer L, Boettger U, Berg F, Schneller T, Hardtdegen A, Aussen S, Hoffmann-Eifert S, Zimmermann MV. Evolution of short-range order in chemically and physically grown thin film bilayer structures for electronic applications. Nanoscale 2020; 12:13103-13112. [PMID: 32543637 DOI: 10.1039/d0nr01847c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Functional thin films are commonly integrated in electronic devices as part of a multi-layer architecture. Metal/oxide/metal structures e.g. in resistive switching memory and piezoelectric microelectrochemical devices are relevant applications. The films are mostly fabricated from the vapour phase or by solution deposition. Processing conditions with a limited thermal budget typically yield nanocrystalline or amorphous layers. For these aperiodic materials, the structure is described in terms of the local atomic order on the length scale of a few chemical bonds up to several nanometres. Previous structural studies of the short-range order in thin films have addressed the simple case of single coatings on amorphous substrates. By contrast, this work demonstrates how to probe the local structure of two stacked functional layers by means of grazing incidence total X-ray scattering and pair distribution function (PDF) analysis. The key to separating the contributions of the individual thin films is the variation of the incidence angle below the critical angle of total external reflection, In this way, structural information was obtained for functional oxides on textured electrodes, i.e. PbZr0.53O0.47O3 on Pt[111] and HfO2 on TiN, as well as HfO2-TiOx bilayers. For these systems, the transformations from disordered phases into periodic structures via thermal teatment are described. These examples highlight the opportunity to develop a detailed understanding of structural evolution during the fabrication of real thin film devices using the PDF technique.
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Affiliation(s)
- Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany.
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25
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Kaur R, Khanna A, Dippel AC, Gutowski O, González F, González-Barriuso M. Structure of strontium tellurite glass, anti-glass and crystalline phases by high-energy X-ray diffraction, reverse Monte Carlo and Rietveld analysis. Acta Crystallogr B Struct Sci Cryst Eng Mater 2020; 76:108-121. [PMID: 32831246 DOI: 10.1107/s2052520620000025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 01/03/2020] [Indexed: 06/11/2023]
Abstract
The structures of xSrO-(100 - x)TeO2 (x = 5, 7.5, 8.5 and 10 mol.%) glass, anti-glass and crystalline samples were studied by high-energy X-ray diffraction (HEXRD), reverse Monte Carlo (RMC) simulations, atomic pair distribution function analysis and Fullprof Rietveld refinement. The atomic pair distributions show the first peak at 1.90 Å due to the Te-O equatorial bonds and the Te-O peak is asymmetrical due to the range of Te-O bond lengths in glass, anti-glass and crystalline samples. The short-range structural properties of glasses such as Te-O bond lengths, Te-O speciation, Te-Te distances and O-Te-O bond angle distributions were determined by RMC simulations. The average Te-O coordination number (NTe-O) for 5SrO-95TeO2 glass is 3.93 which decreases to 3.59 on increasing the SrO concentration to 10 mol.%. The changes in NTe-O revealed that the glass network predominantly contains TeO4 units with a small amount of TeO3 units and there is a structural transformation TeO4 → TeO3 with an increase in SrO concentration. The O-Te-O bond angle distributions have a peak at 79° and reveal that the Oequatorial-Te-Oequatorial bonds are the most abundant linkages in the tellurite network. Two glass samples containing 7.5 and 8.5 mol.% of SrO were annealed at 350°C for 1 h to produce anti-glass phases; they were further annealed at 450°C for 4 h to transform them into crystalline phases. The anti-glass samples are disordered cubic SrTe5O11 and the disordered monoclinic SrTeO3 phases, whereas the crystalline samples contain monoclinic SrTeO3 and the orthorhombic TeO2 phases. The unit-cell parameters of the anti-glass and crystalline structures were determined by Fullprof Rietveld refinement. Thermal studies found that the glass transition temperature increases with an increase in SrO mol.% and the results on the short-range structure of glasses from Raman spectroscopy are in agreement with the RMC findings.
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Affiliation(s)
- Rajinder Kaur
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Atul Khanna
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Ann Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Fernando González
- Department of Chemistry and Process and Resource Engineering, University of Cantabria, Santander 39005, Spain
| | - Marina González-Barriuso
- Department of Chemistry and Process and Resource Engineering, University of Cantabria, Santander 39005, Spain
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26
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Gupta N, Khanna A, Hirdesh, Dippel AC, Gutowski O. Structure of bismuth tellurite and bismuth niobium tellurite glasses and Bi2Te4O11 anti-glass by high energy X-ray diffraction. RSC Adv 2020; 10:13237-13251. [PMID: 35492104 PMCID: PMC9051385 DOI: 10.1039/d0ra01422b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 03/24/2020] [Indexed: 11/21/2022] Open
Abstract
Te–O, Bi–O and Nb–O bond lengths, co-ordinations in bismuth tellurite, bismuth niobium tellurite glasses and Bi2Te4O11 anti-glass by HEXRD, RMC and Riteveld analysis.
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Affiliation(s)
- Nupur Gupta
- Department of Physics
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Atul Khanna
- Department of Physics
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Hirdesh
- Department of Physics
- Guru Nanak Dev University
- Amritsar-143005
- India
| | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY
- 22607 Hamburg
- Germany
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27
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Wölk C, Hause G, Gutowski O, Harvey RD, Brezesinski G. Enhanced chain packing achieved via putative headgroup ion-triplet formation in binary anionic lipid/cationic surfactant mixed monolayers. Chem Phys Lipids 2019; 225:104827. [DOI: 10.1016/j.chemphyslip.2019.104827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/16/2019] [Accepted: 09/17/2019] [Indexed: 11/25/2022]
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28
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Debnath A, Mandal PK, Sarma A, Gutowski O. Effect of non-mesogenic chiral terphenylate on the formulation of room temperature ferroelectric liquid crystal mixtures suitable for display applications. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111317] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Marlton F, Ivashko O, Zimmerman MV, Gutowski O, Dippel AC, Jørgensen MRV. A simple correction for the parallax effect in X-ray pair distribution function measurements. J Appl Crystallogr 2019. [DOI: 10.1107/s1600576719011580] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Total scattering and pair distribution function (PDF) analysis has created new insights that traditional powder diffraction methods have been unable to achieve in understanding the local structures of materials exhibiting disorder or complex nanostructures. Care must be taken in such analyses as subtle and discrete features in the PDF can easily be artefacts generated in the measurement process, which can result in unphysical models and interpretation. The focus of this study is an artefact called the parallax effect, which can occur in area detectors with thick detection layers during the collection of X-ray PDF data. This effect results in high-Q peak offsets, which subsequently cause an r-dependent shift in the PDF peak positions in real space. Such effects should be accounted for if a truly accurate model is to be achieved, and a simple correction that can be conducted via a Rietveld refinement against the reference data is proposed.
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30
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Dippel AC, Roelsgaard M, Iversen BB, Gutowski O, Zimmermann MV, Ruett U. Real-time study of local order in thin films by grazing-incidence total scattering and pair distribution function analysis. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s0108767319099008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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31
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Sturm M, Gutowski O, Brezesinski G. The Influence of Calcium Traces in Ultrapure Water on the Lateral Organization in Tetramyristoyl Cardiolipin Monolayers. Chemphyschem 2019; 20:1521-1526. [DOI: 10.1002/cphc.201900126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/13/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Marina Sturm
- Institute of PhysicsUniversity of Greifswald Felix-Hausdorff-Str. 6 17489 Greifswald Germany
- Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Science Park Potsdam-Golm Am Mühlenberg 1 14476 Potsdam Germany
| | - Olof Gutowski
- Photon ScienceDeutsches Elektronen-Synchrotron DESY Notkestr. 85 22607 Hamburg Germany
| | - Gerald Brezesinski
- Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Science Park Potsdam-Golm Am Mühlenberg 1 14476 Potsdam Germany
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32
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Stefaniu C, Latza VM, Gutowski O, Fontaine P, Brezesinski G, Schneck E. Headgroup-Ordered Monolayers of Uncharged Glycolipids Exhibit Selective Interactions with Ions. J Phys Chem Lett 2019; 10:1684-1690. [PMID: 30908061 PMCID: PMC6727371 DOI: 10.1021/acs.jpclett.8b03865] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 03/25/2019] [Indexed: 05/22/2023]
Abstract
Selective interactions of ions with charge-neutral saccharides can have far-reaching consequences in biological and wet-technological contexts but have so far been observed only indirectly. Here, we directly quantify by total-reflection X-ray fluorescence the preferential accumulation of ions near uncharged saccharide surfaces in the form of glycolipid Langmuir monolayers at air/water interfaces exhibiting different levels of structural ordering. Selective interactions with ions from the aqueous subphase are observed for monolayers featuring crystalline ordering of the saccharide headgroups, as determined by grazing-incidence X-ray diffraction. The attracted ion species depend on the structural motifs displayed by the ordered saccharide layer. Our results may constitute a basis to understand the salt-specific swelling of wood materials and various phenomena in membrane biophysics.
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Affiliation(s)
- Cristina Stefaniu
- Departments
of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Victoria M. Latza
- Departments
of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Olof Gutowski
- Deutsches
Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | | | - Gerald Brezesinski
- Departments
of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Emanuel Schneck
- Departments
of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- E-mail: . Phone: +49-331567-9404. Fax: +49-331567-9402
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33
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Pfaff S, Zhou J, Hejral U, Gustafson J, Shipilin M, Albertin S, Blomberg S, Gutowski O, Dippel A, Lundgren E, Zetterberg J. Combining high-energy X-ray diffraction with Surface Optical Reflectance and Planar Laser Induced Fluorescence for operando catalyst surface characterization. Rev Sci Instrum 2019; 90:033703. [PMID: 30927778 DOI: 10.1063/1.5086925] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
We have combined three techniques, High Energy Surface X-Ray Diffraction (HESXRD), Surface Optical Reflectance, and Planar Laser Induced Fluorescence in an operando study of CO oxidation over a Pd(100) catalyst. We show that these techniques provide useful new insights such as the ability to verify that the finite region being probed by techniques such as HESXRD is representative of the sample surface as a whole. The combination is also suitable to determine when changes in gas composition or surface structure and/or morphology occur and to subsequently correlate them with high temporal resolution. In the study, we confirm previous results which show that the Pd(100) surface reaches high activity before an oxide can be detected. Furthermore, we show that the single crystal catalyst surface does not behave homogeneously, which we attribute to the surface being exposed to inhomogeneous gas conditions in mass transfer limited scenarios.
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Affiliation(s)
- S Pfaff
- Combustion Physics, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - J Zhou
- Combustion Physics, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - U Hejral
- Synchrotron Radiation Research, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - J Gustafson
- Synchrotron Radiation Research, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - M Shipilin
- Department of Physics, AlbaNova University Center, Stockholm University, 10691 Stockholm, Sweden
| | - S Albertin
- Synchrotron Radiation Research, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - S Blomberg
- Synchrotron Radiation Research, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - O Gutowski
- Photon Science, DESY, Notkestrasse 85, Hamburg 22607, Germany
| | - A Dippel
- Photon Science, DESY, Notkestrasse 85, Hamburg 22607, Germany
| | - E Lundgren
- Synchrotron Radiation Research, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - J Zetterberg
- Combustion Physics, Lund University, P.O. Box 118, Lund 22100, Sweden
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34
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Roelsgaard M, Dippel AC, Borup KA, Nielsen IG, Broge NLN, Röh JT, Gutowski O, Iversen BB. Time-resolved grazing-incidence pair distribution functions during deposition by radio-frequency magnetron sputtering. IUCrJ 2019; 6:299-304. [PMID: 30867927 PMCID: PMC6400190 DOI: 10.1107/s2052252519001192] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/22/2019] [Indexed: 05/24/2023]
Abstract
Characterization of local order in thin films is challenging with pair distribution function (PDF) analysis because of the minute mass of the scattering material. Here, it is demonstrated that reliable high-energy grazing-incidence total X-ray scattering data can be obtained in situ during thin-film deposition by radio-frequency magnetron sputtering. A benchmark system of Pt was investigated in a novel sputtering chamber mounted on beamline P07-EH2 at the PETRA III synchrotron. Robust and high-quality PDFs can be obtained from films as thin as 3 nm and atomistic modelling of the PDFs with a time resolution of 0.5 s is possible. In this way, it was found that a polycrystalline Pt thin film deposits with random orientation at 8 W and 2 × 10-2 mbar at room temperature. From the PDF it was found that the coherent-scattering domains grow with time. While the first layers are formed with a small tensile strain this relaxes towards the bulk value with increasing film thickness.
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Affiliation(s)
- Martin Roelsgaard
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus, Denmark
- PETRA III, Deutsches Elektronen-Synchrotron, DESY, Hamburg, Germany
| | | | - Kasper Andersen Borup
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Ida Gjerlevsen Nielsen
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Nils Lau Nyborg Broge
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Jan Torben Röh
- PETRA III, Deutsches Elektronen-Synchrotron, DESY, Hamburg, Germany
| | - Olof Gutowski
- PETRA III, Deutsches Elektronen-Synchrotron, DESY, Hamburg, Germany
| | - Bo Brummerstedt Iversen
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus, Denmark
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35
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Dippel AC, Roelsgaard M, Boettger U, Schneller T, Gutowski O, Ruett U. Local atomic structure of thin and ultrathin films via rapid high-energy X-ray total scattering at grazing incidence. IUCrJ 2019; 6:290-298. [PMID: 30867926 PMCID: PMC6400183 DOI: 10.1107/s2052252519000514] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/09/2019] [Indexed: 05/08/2023]
Abstract
Atomic pair distribution function (PDF) analysis is the most powerful technique to study the structure of condensed matter on the length scale from short- to long-range order. Today, the PDF approach is an integral part of research on amorphous, nanocrystalline and disordered materials from bulk to nanoparticle size. Thin films, however, demand specific experimental strategies for enhanced surface sensitivity and sophisticated data treatment to obtain high-quality PDF data. The approach described here is based on the surface high-energy X-ray diffraction technique applying photon energies above 60 keV at grazing incidence. In this way, reliable PDFs were extracted from films of thicknesses down to a few nanometres. Compared with recently published reports on thin-film PDF analysis from both transmission and grazing-incidence geometries, this work brought the minimum detectable film thickness down by about a factor of ten. Depending on the scattering power of the sample, the data acquisition on such ultrathin films can be completed within fractions of a second. Hence, the rapid-acquisition grazing-incidence PDF method is a major advancement in thin-film technology that opens unprecedented possibilities for in situ and operando PDF studies in complex sample environments. By uncovering how the structure of a layered material on a substrate evolves and transforms in terms of local and average ordering, this technique offers new opportunities for understanding processes such as nucleation, growth, morphology evolution, crystallization and the related kinetics on the atomic level and in real time.
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Affiliation(s)
- Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Martin Roelsgaard
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Ulrich Boettger
- Institute for Materials in Electrical Engineering (IWE-2), RWTH Aachen University, Sommerfeldstraße 24, 52074 Aachen, Germany
| | - Theodor Schneller
- Institute for Materials in Electrical Engineering (IWE-2), RWTH Aachen University, Sommerfeldstraße 24, 52074 Aachen, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Uta Ruett
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
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36
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Martin NM, Hemmingsson F, Schaefer A, Ek M, Merte LR, Hejral U, Gustafson J, Skoglundh M, Dippel AC, Gutowski O, Bauer M, Carlsson PA. Structure–function relationship for CO2 methanation over ceria supported Rh and Ni catalysts under atmospheric pressure conditions. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02097c] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO2 methanation over Rh/CeO2 and Ni/CeO2 highlighting the different surface speciation during reaction as deduced from our study.
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Affiliation(s)
- Natalia M. Martin
- Department of Chemistry and Chemical Engineering and Competence Centre for Catalysis
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Felix Hemmingsson
- Department of Chemistry and Chemical Engineering and Competence Centre for Catalysis
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Andreas Schaefer
- Department of Chemistry and Chemical Engineering and Competence Centre for Catalysis
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Martin Ek
- Centre for Analysis and Synthesis
- Lund University
- 22100 Lund
- Sweden
| | - Lindsay R. Merte
- Department of Materials Science and Applied Mathematics
- Malmö University
- 204 06 Malmö
- Sweden
| | - Uta Hejral
- Division of Synchrotron Radiation Research
- Lund University
- 22100 Lund
- Sweden
| | - Johan Gustafson
- Division of Synchrotron Radiation Research
- Lund University
- 22100 Lund
- Sweden
| | - Magnus Skoglundh
- Department of Chemistry and Chemical Engineering and Competence Centre for Catalysis
- Chalmers University of Technology
- Göteborg
- Sweden
| | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY
- 22607 Hamburg
- Germany
| | - Matthias Bauer
- Department of Chemistry
- Paderborn University
- 33098 Paderborn
- Germany
| | - Per-Anders Carlsson
- Department of Chemistry and Chemical Engineering and Competence Centre for Catalysis
- Chalmers University of Technology
- Göteborg
- Sweden
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37
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Sarma A, Dippel AC, Gutowski O, Etter M, Lippmann M, Seeck O, Manna G, Sanyal MK, Keller TF, Kulkarni S, Guha P, Satyam PV, Zimmermann MV. Electrodeposition of nanowires of a high copper content thiourea precursor of copper sulfide. RSC Adv 2019; 9:31900-31910. [PMID: 35530788 PMCID: PMC9072728 DOI: 10.1039/c9ra04293h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/21/2019] [Indexed: 12/21/2022] Open
Abstract
Copper thiourea complexes are an important material class for application as a precursor of copper sulfide nanocrystals with potential use in solar cells, optoelectronics, medicine, etc. They represent a type of single source precursor, comprising both copper and sulfur in one chemical compound, whose tunable stoichiometry and morphology enable control of the quality and properties of the synthesized copper sulfide nanocrystals. Here, we present a template free electrochemical route to prepare nanowires of copper thiourea (tu) chloride hemihydrate ([Cu(tu)]Cl·½H2O) by pulse deposition. We proposed the model of the growth of nanowires. We also demonstrate complete transformation from the precursor to copper sulfide nanowire by heating it to 180 °C that involves 20% volume loss due to the decomposition of organic constituents; the obtained nanowires have around 38% covellite (CuS) and 62% digenite (Cu1.8S) phases. Electrochemistry offers the advantage of spatially selected deposition e.g. in the active regions of a device. In this study we reported the pulsed electrodeposition technique of copper thiourea complex nanowires which is an important material class for application as a precursor of copper sulfide nanocrystals with potential use in solar cells, optoelectronics, medicine, etc.![]()
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Affiliation(s)
- Abhisakh Sarma
- Deutsches Elektronen-Synchrotron DESY
- 22603 Hamburg
- Germany
| | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY
- 22603 Hamburg
- Germany
| | - Martin Etter
- Deutsches Elektronen-Synchrotron DESY
- 22603 Hamburg
- Germany
| | | | - Oliver Seeck
- Deutsches Elektronen-Synchrotron DESY
- 22603 Hamburg
- Germany
| | - Gouranga Manna
- Surface Physics and Materials Science Division
- Saha Institute of Nuclear Physics
- Calcutta 700 064
- India
| | - Milan K. Sanyal
- Surface Physics and Materials Science Division
- Saha Institute of Nuclear Physics
- Calcutta 700 064
- India
| | - Thomas F. Keller
- Deutsches Elektronen-Synchrotron DESY
- 22603 Hamburg
- Germany
- Physics Department
- Universität Hamburg
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38
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Li H, Bier M, Mars J, Weiss H, Dippel AC, Gutowski O, Honkimäki V, Mezger M. Interfacial premelting of ice in nano composite materials. Phys Chem Chem Phys 2019; 21:3734-3741. [DOI: 10.1039/c8cp05604h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We present a quantitative description of ice premelting in permafrost model systems. Experimental data on the interfacial premelting in ice/clay nano composites was obtained by high energy X-ray diffraction.
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Affiliation(s)
- Hailong Li
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Markus Bier
- Max Planck Institute for Intelligent Systems
- 70569 Stuttgart
- Germany
- Institute for Theoretical Physics IV
- University of Stuttgart
| | - Julian Mars
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
- Institute of Physics
- Johannes Gutenberg University Mainz
| | - Henning Weiss
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY
- 22607 Hamburg
- Germany
| | | | - Markus Mezger
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
- Institute of Physics
- Johannes Gutenberg University Mainz
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Blomberg S, Zetterberg J, Gustafson J, Zhou J, Shipilin M, Pfaff S, Hejral U, Carlsson PA, Gutowski O, Bertram F, Lundgren E. Combining synchrotron light with laser technology in catalysis research. J Synchrotron Radiat 2018; 25:1389-1394. [PMID: 30179177 PMCID: PMC6140392 DOI: 10.1107/s1600577518010597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
High-energy surface X-ray diffraction (HESXRD) provides surface structural information with high temporal resolution, facilitating the understanding of the surface dynamics and structure of the active phase of catalytic surfaces. The surface structure detected during the reaction is sensitive to the composition of the gas phase close to the catalyst surface, and the catalytic activity of the sample itself may affect the surface structure, which in turn may complicate the assignment of the active phase. For this reason, planar laser-induced fluorescence (PLIF) and HESXRD have been combined during the oxidation of CO over a Pd(100) crystal. PLIF complements the structural studies with an instantaneous two-dimensional image of the CO2 gas phase in the vicinity of the active model catalyst. Here the combined HESXRD and PLIF operando measurements of CO oxidation over Pd(100) are presented, allowing for an improved assignment of the correlation between sample structure and the CO2 distribution above the sample surface with sub-second time resolution.
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Affiliation(s)
- Sara Blomberg
- Synchrotron Radiation Research, Lund University, Box 118, Lund 22100, Sweden
| | - Johan Zetterberg
- Combustion Physics, Lund University, Box 118, Lund 22100, Sweden
| | - Johan Gustafson
- Synchrotron Radiation Research, Lund University, Box 118, Lund 22100, Sweden
| | - Jianfeng Zhou
- Combustion Physics, Lund University, Box 118, Lund 22100, Sweden
| | - Mikhail Shipilin
- Synchrotron Radiation Research, Lund University, Box 118, Lund 22100, Sweden
| | - Sebastian Pfaff
- Combustion Physics, Lund University, Box 118, Lund 22100, Sweden
| | - Uta Hejral
- Synchrotron Radiation Research, Lund University, Box 118, Lund 22100, Sweden
| | - Per-Anders Carlsson
- Competence Centre for Catalysis, Chalmers University of Technology, Gothenburg 41296, Sweden
| | - Olof Gutowski
- Photon Science, DESY, Notkestrasse 85, Hamburg 22607, Germany
| | - Florian Bertram
- Photon Science, DESY, Notkestrasse 85, Hamburg 22607, Germany
| | - Edvin Lundgren
- Synchrotron Radiation Research, Lund University, Box 118, Lund 22100, Sweden
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40
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Martin NM, Hemmingsson F, Wang X, Merte LR, Hejral U, Gustafson J, Skoglundh M, Meira DM, Dippel AC, Gutowski O, Bauer M, Carlsson PA. Structure–function relationship during CO2 methanation over Rh/Al2O3 and Rh/SiO2 catalysts under atmospheric pressure conditions. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00516h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Intermediate species formed during CO2 methanation over Rh/Al2O3 and Rh/SiO2 catalysts.
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Affiliation(s)
- Natalia M. Martin
- Competence Centre for Catalysis
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Felix Hemmingsson
- Competence Centre for Catalysis
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Xueting Wang
- Competence Centre for Catalysis
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Lindsay R. Merte
- Division of Chemical Physics
- Department of Physics
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Uta Hejral
- Division of Synchrotron Radiation Research
- Lund University
- 22100 Lund
- Sweden
| | - Johan Gustafson
- Division of Synchrotron Radiation Research
- Lund University
- 22100 Lund
- Sweden
| | - Magnus Skoglundh
- Competence Centre for Catalysis
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- Göteborg
- Sweden
| | | | | | - Olof Gutowski
- Deutsches Elektronen-Synchrotron (DESY)
- 22607 Hamburg
- Germany
| | - Matthias Bauer
- Department of Chemistry
- Paderborn University
- 33098 Paderborn
- Germany
| | - Per-Anders Carlsson
- Competence Centre for Catalysis
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- Göteborg
- Sweden
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41
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Thomas D, Gutowski O, Bertram F, Kirchhof R, Permual K, Dippel AC, Bussone G, Sarma A, Rütt U. The high-energy material science and high-resolution diffraction beamlines at PETRA III. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316093943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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42
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Indra A, Dey K, Midya A, Mandal P, Gutowski O, Rütt U, Majumdar S, Giri S. Magnetoelectric coupling and exchange bias effects in multiferroic NdCrO3. J Phys Condens Matter 2016; 28:166005. [PMID: 27009362 DOI: 10.1088/0953-8984/28/16/166005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report ferroelectricity around ∼88 K that appears well below T N (∼25 K), unlike other members of RCrO3 series. A synchrotron diffraction study suggests that the occurrence of ferroelectricity in NdCrO3 is coupled to the structural transformation from centrosymmetric Pnma to a non-centrosymmetric Pna21 space group. A strong magnetoelectric coupling is observed in the electric polarization [P(T)]. This coupling is significantly influenced by the magnetic field cooling effect, suggesting an exchange bias effect in P(T). This exchange bias effect is also revealed by the systematic shift of the magnetic hysteresis loops below T(N). The rare occurrence of an exchange bias effect in both the magnetic and electric polarizations associated with a strong magnetoelectric coupling is of fundamental interest, as well as being attractive for technological applications close to liquid nitrogen temperature.
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Affiliation(s)
- A Indra
- Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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43
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Stefaniu C, Ries A, Gutowski O, Ruett U, Seeberger PH, Werz DB, Brezesinski G. Impact of Structural Differences in Galactocerebrosides on the Behavior of 2D Monolayers. Langmuir 2016; 32:2436-2444. [PMID: 26907993 DOI: 10.1021/acs.langmuir.5b03830] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The molecular interactions of three biologically important galactocerebrosides have been studied in monolayers formed at the soft air/water interface as 2D model membranes. Highly surface-sensitive techniques as GIXD (grazing incidence X-ray diffraction), IRRAS (infrared reflection-absorption spectroscopy), and BAM (Brewster angle microscopy) have been used. The study reveals that small differences in the chemical structure have a relevant impact on the physical-chemical properties and intermolecular interactions. The presence of a 2-d-hydroxyl group in the fatty acid favored for GalCer C24:0 (2-OH) monolayers a higher hydration state of the headgroup at low lateral pressures (<25 mN/m) and a higher condensation effect above 30 mN/m. An opposite behavior was recorded for GalCer C24:0 and GalCer C24:1, for which the intermolecular interactions are defined by the weakly hydrated but strong H-bonded interconnected head groups. Additionally, the 15-cis-double bond in the fatty acid chain (nervonic acid) of GalCer C24:1 stabilized the LE phase but did not disturb the packing parameters of the LC phase as compared with the saturated compound GalCer C24:0.
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Affiliation(s)
- Cristina Stefaniu
- Max Planck Institute of Colloids and Interfaces , Science Park Potsdam-Golm, 14476 Potsdam, Germany
| | - Annika Ries
- Georg-August-Universität Göttingen , Institute of Organic and Biomolecular Chemistry, Tammannstr. 2, 37077 Göttingen, Germany
| | - Olof Gutowski
- DESY , Forschungsbereich FS, Notkestr. 85, 22603 Hamburg, Germany
| | - Uta Ruett
- DESY , Forschungsbereich FS, Notkestr. 85, 22603 Hamburg, Germany
| | - Peter H Seeberger
- Max Planck Institute of Colloids and Interfaces , Science Park Potsdam-Golm, 14476 Potsdam, Germany
- Freie Universität Berlin , Institute of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
| | - Daniel B Werz
- Technische Universität Braunschweig , Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Gerald Brezesinski
- Max Planck Institute of Colloids and Interfaces , Science Park Potsdam-Golm, 14476 Potsdam, Germany
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44
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Drees Y, Li ZW, Ricci A, Rotter M, Schmidt W, Lamago D, Sobolev O, Rütt U, Gutowski O, Sprung M, Piovano A, Castellan JP, Komarek AC. Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides. Nat Commun 2014; 5:5731. [PMID: 25534540 DOI: 10.1038/ncomms6731] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 11/02/2014] [Indexed: 11/09/2022] Open
Abstract
The magnetic excitations in the cuprate superconductors might be essential for an understanding of high-temperature superconductivity. In these cuprate superconductors the magnetic excitation spectrum resembles an hour-glass and certain resonant magnetic excitations within are believed to be connected to the pairing mechanism, which is corroborated by the observation of a universal linear scaling of superconducting gap and magnetic resonance energy. So far, charge stripes are widely believed to be involved in the physics of hour-glass spectra. Here we study an isostructural cobaltate that also exhibits an hour-glass magnetic spectrum. Instead of the expected charge stripe order we observe nano phase separation and unravel a microscopically split origin of hour-glass spectra on the nano scale pointing to a connection between the magnetic resonance peak and the spin gap originating in islands of the antiferromagnetic parent insulator. Our findings open new ways to theories of magnetic excitations and superconductivity in cuprate superconductors.
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Affiliation(s)
- Y Drees
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - Z W Li
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - A Ricci
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - M Rotter
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - W Schmidt
- Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at ILL, BP 156, 6 Rue Jules Horowitz, 38042 Grenoble, France
| | - D Lamago
- 1] Laboratoire Léon Brillouin, CEA/CNRS,F-91191 Gif-sur Yvette Cedex, UMR12 CEA-CNRS, Bât 563 CEA Saclay, France [2] Institute of Solid State Physics, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany
| | - O Sobolev
- 1] Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM-II), TU München, Lichtenbergstr. 1, D-85747 Garching, Germany [2] Georg-August-Universität Göttingen, Institut für Physikalische Chemie, Tammannstrasse 6, D-37077 Göttingen, Germany
| | - U Rütt
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - O Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - M Sprung
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - A Piovano
- Institut Laue-Langevin (ILL), 6 Rue Jules Horowitz, F-38043 Grenoble, France
| | - J P Castellan
- 1] Laboratoire Léon Brillouin, CEA/CNRS,F-91191 Gif-sur Yvette Cedex, UMR12 CEA-CNRS, Bât 563 CEA Saclay, France [2] Institute of Solid State Physics, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany
| | - A C Komarek
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
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Gustafson J, Shipilin M, Zhang C, Stierle A, Hejral U, Ruett U, Gutowski O, Carlsson PA, Skoglundh M, Lundgren E. High-Energy Surface X-ray Diffraction for Fast Surface Structure Determination. Science 2014; 343:758-61. [DOI: 10.1126/science.1246834] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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46
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Blackburn E, Chang J, Hücker M, Holmes AT, Christensen NB, Liang R, Bonn DA, Hardy WN, Rütt U, Gutowski O, von Zimmermann M, Forgan EM, Hayden SM. X-ray diffraction observations of a charge-density-wave order in superconducting ortho-II YBa2Cu3O6.54 single crystals in zero magnetic field. Phys Rev Lett 2013; 110:137004. [PMID: 23581362 DOI: 10.1103/physrevlett.110.137004] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Indexed: 06/02/2023]
Abstract
X-ray diffraction measurements show that the high-temperature superconductor YBa2Cu3O6.54, with ortho-II oxygen order, has charge-density-wave order in the absence of an applied magnetic field. The dominant wave vector of the charge density wave is q(CDW)=(0,0.328(2),0.5), with the in-plane component parallel to the b axis (chain direction). It has a similar incommensurability to that observed in ortho-VIII and ortho-III samples, which have different dopings and oxygen orderings. Our results for ortho-II contrast with recent high-field NMR measurements, which suggest a commensurate wave vector along the a axis. We discuss the relationship between spin and charge correlations in YBa2Cu3O(y) and recent high-field quantum oscillation, NMR, and ultrasound experiments.
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Affiliation(s)
- E Blackburn
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
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