High Q Technologies ’s Post

As the 𝐒𝐋𝐒 𝟐.𝟎 𝐮𝐩𝐠𝐫𝐚𝐝𝐞 progresses, PSI scientist Maarten Nachtegaal shares his excitement about what this means for 𝐨𝐩𝐞𝐫𝐚𝐧𝐝𝐨 𝐗-𝐫𝐚𝐲 𝐬𝐩𝐞𝐜𝐭𝐫𝐨𝐬𝐜𝐨𝐩𝐲. Operando X-ray spectroscopy allows complex chemical processes such as the mechanisms of catalysts to be studied under real-world operating conditions. Maarten Nachtegaal understandably can’t wait for SLS 2.0: a new beamline, the 🌟 𝐃𝐞𝐛𝐲𝐞 𝐛𝐞𝐚𝐦𝐥𝐢𝐧𝐞 🌟, will serve the field even better than before. This beamline will take advantage of higher X-ray energies ⚡to provide new techniques to the user community. These will be used to studying materials and systems such as catalysts and batteries 🔋with improved precision and under more realistic operating conditions. With high throughput and quick access at the beamline, these studies will benefit the #energy #transition. 🌱🌍 Why are you excited about #SLS 2.0? Join us looking forward to more brilliant light for science by sharing these on social media with #ExcitedAboutSLS! #UpgradingSLS #MoreBrilliantLightForResearch #LightSourceScience #SynchrotronScience

🔬Can cation-disordered rock-salt oxides (DRX) create higher-performance batteries? Our collaboration with Pacific Northwest National Laboratory is advancing battery research! Through cutting-edge electron microscopy techniques, this groundbreaking study on oxyfluoride DRX cathodes unveils the potential for high-performance batteries in the pursuit of sustainable energy solutions. The research revealed the substitution of oxygen with fluorine at an atomic level. It’s crucial insights like these from Lin Jiang and other members of the Thermo Fisher Team, Chongmin Wang's team at Pacific Northwest National Laboratory, and other top research institutes that optimize battery performance, enhance stability, and increase energy density. Join us in revolutionizing the future of clean energy by reading the full paper and staying ahead of the curve in battery innovation. #CleanEnergyResearch #BatteryInnovation #ElectronMicroscopy #ScientificBreakthrough Read the full paper: https://ter.li/zhjpvr

"Applications of X-ray Photoelectron #Spectroscopy to Catalytic Studies" edited by Spyridon Zafeiratos provides a comprehensive overview of the current status and future perspectives of X-ray photoelectron spectroscopy dedicated to catalytic applications, including thermal catalysis, #electrocatalysis, and photo(electro)catalysis. The book starts with the necessary introduction of the technique background, including basic phenomena and #instrumentation aspects. The second part focuses on the presentation of long-established applications of the technique, such as XPS studies of model catalysts. Finally, it describes relatively recent developments of this method for cutting-edge surface #characterization mainly using synchrotron X-ray radiation. University of Strasbourg Scienta Omicron Technische Universität Darmstadt Brigham Young University Cardiff University / Prifysgol Caerdydd Tokyo Institute of Technology Stockholms universitet Purdue University Robert Schlögl, Peter Amann, Pinar Aydogan Gokturk, Emilia A. Carbonio, Ethan Crumlin, Saulius Kaciulis, Maya Kiskinova, Matthew Linford, David Morgan, Günther Rupprechter, Mikael Valter-Lithander, Dmitry Zemlyanov https://lnkd.in/eSBF-CiF

🔥 Hot publication off the IOP Publishing press: "Absolute atomic nitrogen density spatial mapping in three MHCD configurations" just published in PSST Journal. Check it out: https://lnkd.in/d9imX-gn 👨🔬 👩🔬 Who did this? A great #collaborative effort led by Université Sorbonne Paris Nord - LSPM/CNRS (France) with contributions from FOSS Research Centre for Sustainable Energy (Cyprus), University of Jaén (Spain) and our plasma team in Centre for Research & Technology Hellas (CERTH) / Chemical Process and Energy Resources Institute (CPERI: www.cperi.certh.gr). ❓ 🤔 Why do we care? Micro Hollow Cathode Discharge (#MHCD) - a particular geometry of a high density, low power, micro #plasma source - favors the #dissociation of N2 molecules at relatively low temperatures, a prerequisite for the synthesis of nitride #thinfilms but also an essential step towards efficient #nitrogen fixation and #ammonia synthesis. Nevertheless, challenges on efficient N atom transport towards uniform, large area surface deposition still exist. 💡 🤓 What's new? We reveal the spatial distribution of the MHCD produced nitrogen atoms, by nanosecond Two-photon Absorption Laser Induced Fluorescence (TALIF). The experimental results show significant variations in the homogeneity of N atom distribution depending on the MHCD configuration and operating regime (MHCD, jet-MHDC, MSCD) and a correlation with compressible #jet flow dynamics. MSCD leads to a significantly improved atomic N homogeneity allowing for more efficient and uniform nitride deposition on the targeted substrate. Thanks to all co-authors: Kristaq Gazeli (Χρηστάκης Γκαζέλης) Alice REMIGY Odhisea Gazeli Guillaume Lombardi B. Menacer & C. Lazzaroni #plasmatechnology #deposition #simulations #diagnostics #science #research #cfd

Applications of X-ray Photoelectron Spectroscopy to Catalytic Studies. Our contribution covers model catalysis, NAP-XPS and operando characterization.

Tuesday publication update! 📖 In this recent publication from Stanford University and Oak Ridge National Laboratory, the behavior of Pt/Al₂O₃ catalysts in various gas environments was observed using in situ gas phase electron microscopy! The #AtmosphereAX system was used to observe the deactivation of these emission control catalysts. Congratulations on this great publication for Jacob Smith, Gennaro Liccardo , Melissa Cendejas , Michael Stone, Shyama Mandal, Frank Abild-Pedersen, Matteo Cargnello and Miaofang Chi Chi! 🔥💧This study revealed the atomic-scale dynamics of particle migration and ripening under water vapor and oxygen, behaviors that differ significantly from those seen in single-gas environments. ⚛️The authors identified a novel atomic ripening mechanism, where Pt adatom chains dissociate and migrate from Pt nanoparticles—observed only in combined gas environments. ✨These findings offer key insights into how catalysts degrade in real-world conditions, aiding the design of more durable emission control systems. In the video we can see the sintering of nanoparticles using a 200 Torr gas environment with water vapor, oxygen and argon. Want to read the entire paper? Find it here: https://hubs.li/Q02NNJrM0 Want to know more about the Atmosphere AX system? Find more information here: https://hubs.li/Q02NNDzQ0 #InSituMicroscopy #Protochips #FindYourBreakthrough #CatalystDegradation #EmissionControl #ETEM #Nanotechnology #MaterialScience

Conduction–Radiation Coupling between Two Distant Solids Interacting in a Near-Field Regime | Review by Marta Reina, Chams Gharib Ali Barura, Philippe Ben-Abdallah and Riccardo Messina https://lnkd.in/gZcPFDsC MDPI;CNRS;Université Paris-Saclay This article belongs to the Special Issue Matter-Radiation Interactions—In Memory of Professor Francesco Saverio Persico https://lnkd.in/gKQRRihh #radiative #heat #transfer; #conduction #transport #regimes #phonon–photon #coupling #Boltzmann #transport #physics #openaccess #Abstract In the classical approach to dealing with near-field radiative heat exchange between two closely spaced bodies, no coupling between the different heat carriers inside the materials and thermal photons is usually considered. Here, we provide an overview of the current state of research on this coupling between solids of different sizes while paying specific attention to the impact of the conduction regime inside the solids on the conduction–radiation coupling. We describe how the shape of the solids affects this coupling, and show that it can be located at the origin of a drastic change in the temperature profiles inside each body and the heat flux exchanged between them. These results could have important implications in the fields of nanoscale thermal management, near-field solid-state cooling, and nanoscale energy conversion.

💧 Reversible changing the wetting behaviour of carbon nanotubes – Project B02 is a collaboration between the Hamburg University of Technology (TUHH), the Deutsches Elektronen-Synchrotron (DESY), and the Karlsruhe Institute of Technology (KIT). Dr. Patrick Kißling is working with Prof. Raimund Horn (Institute for Chemical Reaction Technology, TUHH), Dr. Gökhan Gizer (TUHH), Prof. Christian Schroer (DESY) and Dr. Thomas Sheppard (X-Ray Microscopy in Catalysis, KIT) on the in situ diagnostics and control of electrowetting of carbon nanotubes. In situ experiments at DESY using synchrotron X-rays will provide a detailed understanding of the catalysis process. 💡 The idea is to reversibly switch the CNT surface from superhydrophobic to hydrophilic enabling a smart material, which could protect the catalyst, sitting on the CNT surface, from poisoning. #SMARTreactors #TUHH #Technischistdasmöglich #TUHamburg #engineeringtofaceclimatechange #DESY #synchrotron #CarbonNanotubes #ChemicalWetting

Conduction–Radiation Coupling between Two Distant Solids Interacting in a Near-Field Regime | Review by Marta Reina, Chams Gharib Ali Barura, Philippe Ben-Abdallah and Riccardo Messina https://lnkd.in/gZcPFDsC MDPI;CNRS;Université Paris-Saclay This article belongs to the Special Issue Matter-Radiation Interactions—In Memory of Professor Francesco Saverio Persico https://lnkd.in/gKQRRihh #radiative #heat #transfer #conduction #transport #regimes #phonon–photon #coupling #Boltzmann #transport #physics #openaccess #Abstract In the classical approach to dealing with near-field radiative heat exchange between two closely spaced bodies, no coupling between the different heat carriers inside the materials and thermal photons is usually considered. Here, we provide an overview of the current state of research on this coupling between solids of different sizes while paying specific attention to the impact of the conduction regime inside the solids on the conduction–radiation coupling. We describe how the shape of the solids affects this coupling, and show that it can be located at the origin of a drastic change in the temperature profiles inside each body and the heat flux exchanged between them. These results could have important implications in the fields of nanoscale thermal management, near-field solid-state cooling, and nanoscale energy conversion.

To get the most out of our experiments we want to measure everything we can in a single shot. This involves simultaneously operating many diagnostic systems, each measuring certain fusion plasma properties across select spatial and temporal scales. No single diagnostic measures everything needed to understand a fusion plasma, so there is a strong motivation to combine all systems such that a more comprehensive description of the behaviors under investigation. In this research highlight, Jeffrey Herfindal and colleagues demonstrate substantial upgrades to a line radiation diagnostic system (filterscope) at the DIII-D National Fusion Facility. These system improvements are demonstrated by comparing quantitative measurements across multiple diagnostic systems with partially overlapping coverage. With these improvements, measurements of many different fusion plasma phenomena are now more comprehensive, providing more stringent observational data that is used to better understand the underlying behavior and to guide the next advances in device modeling and simulation codes. This work was performed collaboratively by U.S. National Laboratories and universities including Fusion and Fission at ORNL, University of Tennessee, Knoxville, Aalto University, Lawrence Livermore National Laboratory, University of Wisconsin-Madison, and Sandia National Laboratories. J.L. Herfindal, et al., Review of Scientific Instruments 95, 023504 (2024), https://lnkd.in/gbJSbuUZ #fusionenergy #diagnostics #light