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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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DEIP, discontinuous element insertion Program — Mesh generation for interfacial finite element modeling
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IPRO+/−: Computational Protein Design Tool Allowing for Insertions and Deletions
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Lessons learned from FeSb2O4 on stereoactive lone pairs as a design principle for anion insertion
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Determinants of Multiheme Cytochrome Extracellular Electron Transfer Uncovered by Systematic Peptide Insertion
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Rapid and Reversible Lithium Insertion in the Wadsley–Roth-Derived Phase NaNb 13 O 33
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Investigation of the Mechanism of Mg Insertion in Birnessite in Nonaqueous and Aqueous Rechargeable Mg-Ion Batteries
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Highly Reversible Conversion-Type FeOF Composite Electrode with Extended Lithium Insertion by Atomic Layer Deposition LiPON Protection
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Synthesis by Thermal Decomposition of Two Iron Hydroxyfluorides: Structural Effects of Li Insertion
The synthesis and the electrochemical properties of iron hydroxyfluorides with an open structure, prepared from the thermal decomposition of Fe 2+ Fe 3+ F 5 (H 2 O) 2 and Fe 2+ Fe 2 3+ F 8 (H 2 O) 2 under ambient air, are reported. The combination of thermogravimetric analyses, X-ray thermodiffraction (XRD), and infrared spectroscopy has evidenced two unstable lacunar oxyfluorides that transform rapidly into hydroxyfluorides under ambient air. Their formulations and structural features have been determined from powder XRD, Mössbauer spectrometry, and pair distribution function, leading to Fe 3+ F 2.5 (OH) 0.5 with the pyrochlore network and to Fe 3+ F 2.66 (OH) 0.34 with the hexagonal tungsten bronze (HTB) structure. The electrochemistry of these hydroxyfluorides indicates excellent and similar capacities with a significant decrease after the first cycle to reach sustained values of ~110 mAh g –1 upon cycling. Finally, in situ XRD measurements reveal that the pyrochlore network undergoes amorphization (x Li+ > 0.5) while the HTB phase transforms into the ReO 3 -type phase (x Li+ > 0.33).
Metal Insertion in a Methylamine-Functionalized Zirconium Metal–Organic Framework for Enhanced Carbon Dioxide Capture
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High-Pressure Effects on Hofmann-Type Clathrates: Promoted Release and Restricted Insertion of Guest Molecules
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Deterministic Spin–Orbit Torque Switching by a Light-Metal Insertion
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Asymmetric Lithium Extraction and Insertion in High Voltage Spinel at Fast Rate
Spinel-structured ordered-LiNi 0.5 Mn 1.5 O 4 (o-LNMO) has experienced a resurgence of interest in the context of reducing scarce elements such as cobalt from lithium-ion battery. O-LNMO undergoes two two-phase reaction at slow rates. However, it is not known if such phenomenon also applies at fast rates. Herein, we investigate the rate-dependent phase transition behavior of o-LNMO through in operando time-resolved X-ray diffraction. The results indicate that a narrow region of solid solution reaction exists for charge and discharge at both slow and fast rate. The overall phase transition is highly asymmetric at fast rates. During fast charge, it is a particle-by-particle mechanism resulting from asynchronized reaction among the particles. Finally, during fast discharge, it is likely a core-shell mechanism involving transition from Li 0+x Ni 0.5 Mn 1.5 O 4 to Li 1+x Ni 0.5 Mn 1.5 O 4 in the outer layer of particles. The Li 0.5 Ni 0.5 Mn 1.5 O 4 phase is suppressed during fast discharge and only appears through Li redistribution upon relaxation.