1
|
Monochromatic computed tomography using laboratory-scale setup. Sci Rep 2023; 13:363. [PMID: 36611113 PMCID: PMC9825405 DOI: 10.1038/s41598-023-27409-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023] Open
Abstract
In this article, we demonstrate the viability of highly monochromatic full-field X-ray absorption near edge structure based tomography using a laboratory-scale Johann-type X-ray absorption spectrometer utilising a conventional X-ray tube source. In this proof-of-concept, by using a phantom embedded with elemental Se, Na[Formula: see text]SeO[Formula: see text], and Na[Formula: see text]SeO[Formula: see text], we show that the three-dimensional distributions of Se in different oxidation states can be mapped and distinguished from the phantom matrix and each other with absorption edge contrast tomography. The presented method allows for volumetric analyses of chemical speciation in mm-scale samples using low-brilliance X-ray sources, and represents a new analytic tool for materials engineering and research in many fields including biology and chemistry.
Collapse
|
2
|
Kallio AJ, Weiß A, Bes R, Heikkilä MJ, Ritala M, Kemell M, Huotari S. Laboratory-scale X-ray absorption spectroscopy of 3d transition metals in inorganic thin films. Dalton Trans 2022; 51:18593-18602. [PMID: 36444942 DOI: 10.1039/d2dt02264h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper we present laboratory-scale X-ray absorption spectroscopy applied to the research of nanometer-scale thin films. We demonstrate the Cu K edge X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) of CuI and CuO thin films grown with atomic layer deposition. Film thicknesses in the investigated samples ranged from 12 to 248 nm. Even from the thinnest films, XANES spectra can be obtained in 5-20 minutes and EXAFS in 1-4 days. In order to prove the capability of laboratory-based XAS for in situ measurements on thin films, we demonstrate an experiment on in situ oxidation of a 248 nm thick CuI film at a temperature of 240 °C. These methods have important implications for novel and enhanced possibilities for inorganic thin film research.
Collapse
Affiliation(s)
| | - Alexander Weiß
- Department of Chemistry, P.O.Box 55, University of Helsinki, Finland
| | - Rene Bes
- Department of Physics, P.O.Box 64, University of Helsinki, Finland. .,Helsinki Institute of Physics, P.O.Box 64, Finland
| | - Mikko J Heikkilä
- Department of Chemistry, P.O.Box 55, University of Helsinki, Finland
| | - Mikko Ritala
- Department of Chemistry, P.O.Box 55, University of Helsinki, Finland
| | - Marianna Kemell
- Department of Chemistry, P.O.Box 55, University of Helsinki, Finland
| | - Simo Huotari
- Department of Physics, P.O.Box 64, University of Helsinki, Finland.
| |
Collapse
|
3
|
Genz NS, Kallio A, Oord R, Krumeich F, Pokle A, Prytz Ø, Olsbye U, Meirer F, Huotari S, Weckhuysen BM. Operando Laboratory-Based Multi-Edge X-Ray Absorption Near-Edge Spectroscopy of Solid Catalysts. Angew Chem Int Ed Engl 2022; 61:e202209334. [PMID: 36205032 PMCID: PMC9828672 DOI: 10.1002/anie.202209334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Indexed: 11/19/2022]
Abstract
Laboratory-based X-ray absorption spectroscopy (XAS) and especially X-ray absorption near-edge structure (XANES) offers new opportunities in catalyst characterization and presents not only an alternative, but also a complementary approach to precious beamtime at synchrotron facilities. We successfully designed a laboratory-based setup for performing operando, quasi-simultaneous XANES analysis at multiple K-edges, more specifically, operando XANES of mono-, bi-, and trimetallic CO2 hydrogenation catalysts containing Ni, Fe, and Cu. Detailed operando XANES studies of the multielement solid catalysts revealed metal-dependent differences in the reducibility and re-oxidation behavior and their influence on the catalytic performance in CO2 hydrogenation. The applicability of operando laboratory-based XANES at multiple K-edges paves the way for advanced multielement catalyst characterization complementing detailed studies at synchrotron facilities.
Collapse
Affiliation(s)
- Nina S. Genz
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Antti‐Jussi Kallio
- Department of PhysicsUniversity of HelsinkiP. O. Box 6400014HelsinkiFinland
| | - Ramon Oord
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Frank Krumeich
- Laboratory of Inorganic ChemistryDepartment of ChemistryETH ZürichVladimir-Prelog-Weg 18093ZürichSwitzerland
| | - Anuj Pokle
- Department of PhysicsCenter for Materials Science and NanotechnologyUniversity of OsloP.O. Box 10480316OsloNorway
| | - Øystein Prytz
- Department of PhysicsCenter for Materials Science and NanotechnologyUniversity of OsloP.O. Box 10480316OsloNorway
| | - Unni Olsbye
- Department of ChemistryUniversity of OsloP.O. Box 10330315OsloNorway
| | - Florian Meirer
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Simo Huotari
- Department of PhysicsUniversity of HelsinkiP. O. Box 6400014HelsinkiFinland
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| |
Collapse
|
4
|
Cutsail III GE, DeBeer S. Challenges and Opportunities for Applications of Advanced X-ray Spectroscopy in Catalysis Research. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- George E. Cutsail III
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
- Institute of Inorganic Chemistry, University of Duisburg-Essen, Universitätsstr. 5-7, 45117 Essen, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| |
Collapse
|
5
|
Abstract
Catalysis is at the core of chemistry and has been essential to make all the goods surrounding us, including fuels, coatings, plastics and other functional materials. In the near future, catalysis will also be an essential tool in making the shift from a fossil-fuel-based to a more renewable and circular society. To make this reality, we have to better understand the fundamental concept of the active site in catalysis. Here, we discuss the physical meaning - and deduce the validity and, therefore, usefulness - of some common approaches in heterogeneous catalysis, such as linking catalyst activity to a 'turnover frequency' and explaining catalytic performance in terms of 'structure sensitivity' or 'structure insensitivity'. Catalytic concepts from the fields of enzymatic and homogeneous catalysis are compared, ultimately realizing that the struggle that one encounters in defining the active site in most solid catalysts is likely the one we must overcome to reach our end goal: tailoring the precise functioning of the active sites with respect to many different parameters to satisfy our ever-growing needs. This article ends with an outlook of what may become feasible within the not-too-distant future with modern experimental and theoretical tools at hand.
Collapse
|
6
|
Seddon-Ferretti ME, Mottram LM, Stennett MC, Corkhill CL, Hyatt NC. HERMES - a GUI-based software tool for pre-processing of X-ray absorption spectroscopy data from laboratory Rowland circle spectrometers. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:276-279. [PMID: 34985445 PMCID: PMC8733975 DOI: 10.1107/s1600577521012583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
HERMES, a graphical user interface software tool, is presented, for pre-processing X-ray absorption spectroscopy (XAS) data from laboratory Rowland circle spectrometers, to meet the data handling needs of a growing community of practice. HERMES enables laboratory XAS data to be displayed for quality assessment, merging of data sets, polynomial fitting of smoothly varying data, and correction of data to the true energy scale and for dead-time and leakage effects. The software is written in Java 15 programming language, and runs on major computer operating systems, with graphics implementation using the JFreeChart toolkit. HERMES is freely available and distributed under an open source licence.
Collapse
Affiliation(s)
- Marco E. Seddon-Ferretti
- Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
- Department of Computer Science, University of Sheffield, Regent Court, Sheffield S1 4DP, United Kingdom
| | - Lucy M. Mottram
- Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
| | - Martin C. Stennett
- Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
| | - Claire L. Corkhill
- Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
| | - Neil C. Hyatt
- Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
| |
Collapse
|
7
|
Moya-Cancino JG, Honkanen AP, van der Eerden AMJ, Oord R, Monai M, ten Have I, Sahle CJ, Meirer F, Weckhuysen BM, de Groot FMF, Huotari S. In Situ X-ray Raman Scattering Spectroscopy of the Formation of Cobalt Carbides in a Co/TiO2 Fischer–Tropsch Synthesis Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José G. Moya-Cancino
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Ari-Pekka Honkanen
- Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland
| | - Ad M. J. van der Eerden
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Ramon Oord
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Matteo Monai
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Iris ten Have
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Christoph J. Sahle
- Beamline ID20, European Synchrotron Radiation Facility, CS 40220, 38043 Grenoble Cedex 9, France
| | - Florian Meirer
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Frank M. F. de Groot
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Simo Huotari
- Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland
| |
Collapse
|
8
|
Honkanen AP, Huotari S. General method to calculate the elastic deformation and X-ray diffraction properties of bent crystal wafers. IUCRJ 2021; 8:102-115. [PMID: 33520246 PMCID: PMC7793001 DOI: 10.1107/s2052252520014165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/23/2020] [Indexed: 06/12/2023]
Abstract
Toroidally and spherically bent single crystals are widely employed as optical elements in hard X-ray spectrometry at synchrotron and free-electron laser light sources, and in laboratory-scale instruments. To achieve optimal spectrometer performance, a solid theoretical understanding of the diffraction properties of such crystals is essential. In this work, a general method to calculate the internal stress and strain fields of toroidally bent crystals and how to apply it to predict their diffraction properties is presented. Solutions are derived and discussed for circular and rectangular spherically bent wafers due to their prevalence in contemporary instrumentation.
Collapse
Affiliation(s)
- Ari-Pekka Honkanen
- Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland
| | - Simo Huotari
- Department of Physics, University of Helsinki, PO Box 64, FI-00014 Helsinki, Finland
| |
Collapse
|
9
|
Ditter AS, Jahrman EP, Bradshaw LR, Xia X, Pauzauskie PJ, Seidler GT. A mail-in and user facility for X-ray absorption near-edge structure: the CEI-XANES laboratory X-ray spectrometer at the University of Washington. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:2086-2093. [PMID: 31721755 DOI: 10.1107/s1600577519012839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
There are more than 100 beamlines or endstations worldwide that frequently support X-ray absorption fine-structure (XAFS) measurements, thus providing critical enabling capability for research across numerous scientific disciplines. However, the absence of a supporting tier of more readily accessible, lower-performing options has caused systemic inefficiencies, resulting in high oversubscription and the omission of many scientifically and socially valuable XAFS applications that are incompatible with the synchrotron facility access model. To this end, this work describes the design, performance and uses of the Clean Energy Institute X-ray absorption near-edge structure (CEI-XANES) laboratory spectrometer and its use as both a user-present and mail-in facility. Such new additions to the XAFS infrastructure landscape raise important questions about the most productive interactions between synchrotron radiation and laboratory-based capabilities; this can be discussed in the framework of five categories, only one of which is competitive. The categories include independent operation on independent problems, use dictated by convenience, pre-synchrotron preparatory use of laboratory capability, post-synchrotron follow-up use of laboratory capability, and parallel use of both synchrotron radiation and laboratory systems.
Collapse
Affiliation(s)
- Alexander S Ditter
- Department of Physics, University of Washington, PO Box 351650, Seattle, WA 98195-1560, USA
| | - Evan P Jahrman
- Department of Physics, University of Washington, PO Box 351650, Seattle, WA 98195-1560, USA
| | - Liam R Bradshaw
- Molecular Analysis Facility, University of Washington, 4000 15th Ave NE, Seattle, WA 98195, USA
| | - Xiaojing Xia
- Department of Molecular Science and Engineering, University of Washington, Seattle, WA 98195, USA
| | - Peter J Pauzauskie
- Department of Materials Science and Engineering, University of Washington, 3920 E. Stevens Way NE, Seattle, WA 98195, USA
| | - Gerald T Seidler
- Department of Physics, University of Washington, PO Box 351650, Seattle, WA 98195-1560, USA
| |
Collapse
|
10
|
Filez M, Redekop EA, Dendooven J, Ramachandran RK, Solano E, Olsbye U, Weckhuysen BM, Galvita VV, Poelman H, Detavernier C, Marin GB. Formation and Functioning of Bimetallic Nanocatalysts: The Power of X-ray Probes. Angew Chem Int Ed Engl 2019; 58:13220-13230. [PMID: 30934165 PMCID: PMC6771619 DOI: 10.1002/anie.201902859] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 01/08/2023]
Abstract
Bimetallic nanocatalysts are key enablers of current chemical technologies, including car exhaust converters and fuel cells, and play a crucial role in industry to promote a wide range of chemical reactions. However, owing to significant characterization challenges, insights in the dynamic phenomena that shape and change the working state of the catalyst await further refinement. Herein, we discuss the atomic-scale processes leading to mono- and bimetallic nanoparticle formation and highlight the dynamics and kinetics of lifetime changes in bimetallic catalysts with showcase examples for Pt-based systems. We discuss how in situ and operando X-ray spectroscopy, scattering, and diffraction can be used as a complementary toolbox to interrogate the working principles of today's and tomorrow's bimetallic nanocatalysts.
Collapse
Affiliation(s)
- Matthias Filez
- Inorganic Chemistry and Catalysis groupUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Evgeniy A. Redekop
- Centre for Materials Science and Nanotechnology (SMN)Department of ChemistryUniversity of OsloP.O box 1126 BlindernC0318OsloNorway
| | - Jolien Dendooven
- Conformal Coatings of Nanomaterials groupGhent UniversityKrijgslaan 281/S19000GhentBelgium
| | | | - Eduardo Solano
- Conformal Coatings of Nanomaterials groupGhent UniversityKrijgslaan 281/S19000GhentBelgium
- NCD-SWEET beamlineALBA synchrotron light sourceCarrer de la Llum 2–2608290, Cerdanyola del VallèsBarcelonaSpain
| | - Unni Olsbye
- Centre for Materials Science and Nanotechnology (SMN)Department of ChemistryUniversity of OsloP.O box 1126 BlindernC0318OsloNorway
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis groupUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Vladimir V. Galvita
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 1259052GhentBelgium
| | - Hilde Poelman
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 1259052GhentBelgium
| | - Christophe Detavernier
- Conformal Coatings of Nanomaterials groupGhent UniversityKrijgslaan 281/S19000GhentBelgium
| | - Guy B. Marin
- Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 1259052GhentBelgium
| |
Collapse
|
11
|
Filez M, Redekop EA, Dendooven J, Ramachandran RK, Solano E, Olsbye U, Weckhuysen BM, Galvita VV, Poelman H, Detavernier C, Marin GB. Formation and Functioning of Bimetallic Nanocatalysts: The Power of X‐ray Probes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902859] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Matthias Filez
- Inorganic Chemistry and Catalysis groupUtrecht University Universiteitsweg 99 3584CG Utrecht The Netherlands
| | - Evgeniy A. Redekop
- Centre for Materials Science and Nanotechnology (SMN)Department of ChemistryUniversity of Oslo P.O box 1126 Blindern C0318 Oslo Norway
| | - Jolien Dendooven
- Conformal Coatings of Nanomaterials groupGhent University Krijgslaan 281/S1 9000 Ghent Belgium
| | - Ranjith K. Ramachandran
- Conformal Coatings of Nanomaterials groupGhent University Krijgslaan 281/S1 9000 Ghent Belgium
| | - Eduardo Solano
- Conformal Coatings of Nanomaterials groupGhent University Krijgslaan 281/S1 9000 Ghent Belgium
- NCD-SWEET beamlineALBA synchrotron light source Carrer de la Llum 2–26 08290, Cerdanyola del Vallès Barcelona Spain
| | - Unni Olsbye
- Centre for Materials Science and Nanotechnology (SMN)Department of ChemistryUniversity of Oslo P.O box 1126 Blindern C0318 Oslo Norway
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis groupUtrecht University Universiteitsweg 99 3584CG Utrecht The Netherlands
| | - Vladimir V. Galvita
- Laboratory for Chemical TechnologyGhent University Technologiepark 125 9052 Ghent Belgium
| | - Hilde Poelman
- Laboratory for Chemical TechnologyGhent University Technologiepark 125 9052 Ghent Belgium
| | - Christophe Detavernier
- Conformal Coatings of Nanomaterials groupGhent University Krijgslaan 281/S1 9000 Ghent Belgium
| | - Guy B. Marin
- Laboratory for Chemical TechnologyGhent University Technologiepark 125 9052 Ghent Belgium
| |
Collapse
|
12
|
Zeeshan F, Hoszowska J, Loperetti-Tornay L, Dousse JC. In-house setup for laboratory-based x-ray absorption fine structure spectroscopy measurements. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:073105. [PMID: 31370460 DOI: 10.1063/1.5094873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
We report on a laboratory-based facility for in-house x-ray absorption fine structure (XAFS) measurements. The device consists of a conventional x-ray source for the production of the incident polychromatic radiation and a von Hamos bent crystal spectrometer for the analysis of the incoming and transmitted radiation. The reliability of the laboratory-based setup was evaluated by comparing the Cu K-edge and Ta L3-edge XAFS spectra obtained in-house with the corresponding spectra measured at a synchrotron radiation facility. To check the accuracy of the device, the K- and L-edge energies and the attenuation coefficients below and above the edges of several 3d, 4d, and 5d elements were determined and compared with the existing experimental and theoretical data. The dependence of the XAFS spectrum shape on the oxidation state of the sample was also probed by measuring inhouse the absorption spectra of metallic Fe and two Fe oxides (Fe2O3 and Fe3O4).
Collapse
Affiliation(s)
- F Zeeshan
- Physics Department, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| | - J Hoszowska
- Physics Department, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| | - L Loperetti-Tornay
- Physics Department, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| | - J-Cl Dousse
- Physics Department, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| |
Collapse
|
13
|
Moya‐Cancino JG, Honkanen A, van der Eerden AMJ, Schaink H, Folkertsma L, Ghiasi M, Longo A, Meirer F, de Groot FMF, Huotari S, Weckhuysen BM. Elucidating the K‐Edge X‐Ray Absorption Near‐Edge Structure of Cobalt Carbide. ChemCatChem 2019. [DOI: 10.1002/cctc.201900434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- José G. Moya‐Cancino
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Ari‐Pekka Honkanen
- Department of PhysicsUniversity of Helsinki PO Box 64 00014 Helsinki Finland
| | - Ad M. J. van der Eerden
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Herrick Schaink
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Lieven Folkertsma
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Mahnaz Ghiasi
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Alessandro Longo
- Dutch-Belgian Beamline BM26European Synchrotron Radiation (ESRF) Facility CS 40220 38043 Grenoble Cedex 9 France
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, USO Via Ugo La Malfa, 153 90146 Palermo Italy
| | - Florian Meirer
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Frank M. F. de Groot
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Simo Huotari
- Department of PhysicsUniversity of Helsinki PO Box 64 00014 Helsinki Finland
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| |
Collapse
|
14
|
Honkanen AP, Ollikkala S, Ahopelto T, Kallio AJ, Blomberg M, Huotari S. Johann-type laboratory-scale x-ray absorption spectrometer with versatile detection modes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:033107. [PMID: 30927829 DOI: 10.1063/1.5084049] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
We present a low-cost laboratory X-ray absorption spectrometer that uses a conventional X-ray tube source and bent Johann-type crystal monochromators. The instrument is designed for X-ray absorption spectroscopy studies in the 4-20 keV range which covers most K edges of 3d transition metals and L edges of 5d transition metals and actinides. The energy resolution is typically in the range of 1-5 eV at 10 keV depending on the crystal analyser and the Bragg angle. Measurements can be performed in transmission, fluorescence, and imaging modes. Due to its simple and modular design, the spectrometer can be modified to accommodate additional equipment and complex sample environments required for in situ studies. A showcase of various applications is presented.
Collapse
Affiliation(s)
- Ari-Pekka Honkanen
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Sami Ollikkala
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Taru Ahopelto
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Antti-Jussi Kallio
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Merja Blomberg
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Simo Huotari
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| |
Collapse
|
15
|
Lee S, Lee S, Gerceker D, Kumbhalkar MD, Wiaderek KM, Ball MR, Mavrikakis M, Dumesic JA, Winans RE. In situ, operando studies on the size and structure of supported Pt catalysts under supercritical conditions by simultaneous synchrotron-based X-ray techniques. Phys Chem Chem Phys 2019; 21:11740-11747. [DOI: 10.1039/c9cp00347a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Investigation of the size and structure of supported Pt catalysts under supercritical conditions leads to a fundamentally new level of understanding of nanoscale materials under extreme conditions.
Collapse
Affiliation(s)
- Sungwon Lee
- X-ray Science Division
- Argonne National Laboratory
- Lemont
- USA
| | - Sungsik Lee
- X-ray Science Division
- Argonne National Laboratory
- Lemont
- USA
| | - Duygu Gerceker
- Department of Chemistry and Biological Engineering
- University of Wisconsin
- Madison
- USA
| | | | | | - Madelyn R. Ball
- Department of Chemistry and Biological Engineering
- University of Wisconsin
- Madison
- USA
| | - Manos Mavrikakis
- Department of Chemistry and Biological Engineering
- University of Wisconsin
- Madison
- USA
| | - James A. Dumesic
- Department of Chemistry and Biological Engineering
- University of Wisconsin
- Madison
- USA
| | | |
Collapse
|
16
|
Newton MA, Checchia S, Knorpp AJ, Stoian D, van Beek W, Emerich H, Longo A, van Bokhoven JA. On isothermality in some commonly used plug flow reactors for X-ray based investigations of catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00464e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We compare two reactor setups commonly used to make operando measurements of catalyst behavior using X-rays in terms of the degree to which they may be considered to yield radial and axial isothermality.
Collapse
Affiliation(s)
- Mark A. Newton
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zürich
- Switzerland
| | - Stefano Checchia
- ID 15
- European Synchrotron Radiation Facility
- 38043 Grenoble
- France
| | - Amy J. Knorpp
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zürich
- Switzerland
| | | | | | | | | | - Jeroen A. van Bokhoven
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zürich
- Switzerland
- Laboratory for catalysis and sustainable chemistry
| |
Collapse
|