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Category: Publications

Synergistic Effects of Heating and Biasing of AlGaN/GaN High Electron Mobility Transistors: An In-Situ Transmission Electron Microscopy Study

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Tuesday publication post! In this work, the #FusionAX system was used for electrothermal studies of high electron mobility transistors! Congratulations to this nice publication to Nahid Sultan Al-Mamun ,Ahmad Islam, Nicholas Glavin, Aman Haque, Douglas E.Wolfe, Fan Ren and Stephen Pearton! ️High-temperature operation is a critical factor impacting the reliability of AlGaN/GaN high electron mobility … Read More

Operando Electrodeposition of Nonprecious Metal Copper Nanocatalysts on Low Dimensional Support Materials for Nitrate Reduction Reactions

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Tuesday publication post! In this newest publication from #NanyangUniversity in Singapore, Shu Fen Tan, Hany Roslie, Teddy Salim, Zengyu Han, Dongshuang Wu,Caihong Liang, LimFong Teo, and Yeng Ming Lam looked at Cu nanoparticle plating on carbon nanotubes using the #PoseidonAX system! In the race to develop more sustainable energy solutions, supported nonprecious metal catalysts like … Read More

Key Role of Paracrystalline Motifs on Iridium Oxide Surfaces for Acidic Water Oxidation

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Tuesday publication post! In this newest publication from the group at #NorthwesternUniversity, the authors used our machine-vision software AXON to observe beam damage in IrOx samples! Iridium-based oxides can be for efficient green hydrogen production through water electrolysis, and show the most promise for acidic water oxidation. However, a deeper understanding of the catalyst surface … Read More

Sintering Mechanism of Pt/Al2O3 in Complex Emission Gases Elucidated via In Situ Environmental STEM

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Tuesday publication update! In this recent publication from Stanford University and Oak Ridge University, 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 … Read More

Insight into the Internal Structure of High-Performance Multicore Magnetic Nanoparticles Used in Cancer Thermotherapy

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Tuesday publication update! In this newest publication from Aix-Marseille Université, CNRS, the team of Suzanne Giorgio has looked at magnetic nanoparticles (MNPs) for cancer treatment, particularly in magnetic hyperthermia for pancreatic cancer. The authors use the #PoseidonAX system to explore the intricate internal structure of high-performance MNPs. Studies like these show that liquid phase TEM … Read More

Spontaneous Liquefaction of Solid Metal–Liquid Metal Interfaces in Colloidal Binary Alloys

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Tuesday publication update! In this newest publication, authors used the #FusionAX to look at the crystallization from molten alloys in the field of metallurgy! In this work, they explored the solid intermetallic particles surrounded by the liquid metal from which they precipitated. The outer layers of solidified intermetallics fluctuate between crystalline and liquid states, even … Read More

Platinum-Based Nanowires as Active Catalysts toward Oxygen Reduction Reaction: In Situ Observation of SurfaceDiffusion-Assisted, Solid-State Oriented Attachment

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Tuesday publication update! In this publication post we look back at a study published in 2017! Even though commercial gas phase electron microscopy systems had not been on the market for long, already the authors from #ShanghaiJiaoTong and #CaliforniaIrvine were looking at oxygen reduction reaction (ORR) catalysts at the nanoscale for proton-exchange membrane fuel cells … Read More

An In Situ Investigation of the Thermal Decomposition of Metal-Organic Framework NH2-MIL-125 (Ti)

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Tuesday publication update! The authors on this paper visualized titanium-based metal-organic frameworks (MOFs) under gas atmosphere and in the TEM using the #AtmosphereAX system. The authors looked at the mechanisms behind their pyrolytic conversion using in situ gas phase electron microscopy. ️ This research showed that around 350°C, the MOF framework begins to collapse, breaking … Read More

Direct in-situ imaging of electrochemical corrosion of Pd-Pt core-shell electrocatalysts

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Tuesday publication update! This new publication in #NatureCommunications from @Jianbo Wu, @Xiaoqing Pan and @Wenpei Gao looks at the corrosion of electrocatalysts during electrochemical operations using the #PoseidonAX. Using electrochemical liquid cell transmission electron microscopy the authors have captured the intricate electrochemical corrosion of Pd@Pt core-shell octahedral nanoparticles, observing their transformation into Pt nanoframes. ⚡ … Read More

Environmental Scanning Transmission Electron Microscopy of the catalyst activation and regeneration

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Tuesday publication update! In this newest accepted article by @Valérie Briois, @Jaysen Nelayah, @Camille La Fontaine, @Olga Roudenko, @Anthony Beauvois, @Aline Ribeiro Passos and @Damien Alloyeau in #ChemCatChem the Ni4Cu1 bimetallic catalyst composition is researched for its catalytic activation and regeneration. By using the #AtmosphereAX system and comparing those results with Full Field Transmission X-rays … Read More

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