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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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At least 1,009 records · Page 56

All sources NASA NTRS DOE OSTI

DOE OSTI2017

Feedbacks among O2 and CO2 in deep soil gas, oxidation of ferrous minerals, and fractures: A hypothesis for steady-state regolith thickness

Not provided.

Geochemistry & Geophysics↗

DOE OSTI2018

Phase transition and thermal equations of state of (Fe,Al)-bridgmanite and post-perovskite: Implication for the chemical heterogeneity at the lowermost mantle

Not Available

Sun, Ningyu↗

DOE OSTI2018

Phase stability and thermal equation of state of δ-AlOOH: Implication for water transportation to the Deep Lower Mantle

Not Available

Duan, Yunfei↗

DOE OSTI2025

Autoregressive model-based parameter correlation for state of charge and state of health of lithium-ion batteries using built-in piezoelectric transducer induced ultrasonic waves

Not Available

Ahmed, Shabbir (ORCID:0000000182966025)↗

DOE OSTI2023

An investigation into the effects of state of charge and heating rate on propagating thermal runaway in Li-ion batteries with experiments and simulations

Not Available

Kurzawski, Andrew↗

DOE OSTI2017

The bulk valence state of Fe and the origin of water in chondrites

Not Available

Sutton, S.↗

DOE OSTI2024

Uranium oxidation states in zircon and other accessory phases

Not provided.

Geochemistry & Geophysics↗

DOE OSTI2022

Efficient room-temperature solid-state lithium ion conductors enabled by mixed-graft block copolymer architectures

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99 GENERAL AND MISCELLANEOUS↗

DOE OSTI2015

Hydrothermal synthesis and solid-state structures of polynuclear technetium iodide compounds

Two new technetium iodide compounds, Tc-2(O2CCH3)(4)I and K[Tc-8(mu-I)(8)I-4] I, were synthesized in an autoclave from the reaction of KTcO4 in glacial acetic acid with hydroiodic acid and/or alkali metal iodide salts at 210 degrees C under 60-70 atm hydrogen pressure. The structures of Tc-2(O2CCH3)(4)I and K[Tc-8(mu-I)(8)I-4] I were solved by single-crystal X-ray diffraction. The compound Tc-2(O2CCH3)(4)I crystallizes in the monoclinic space group C2/m with a = 7.1194(6) angstrom, b = 14.5851(13) angstrom, c = 7.1586(6) angstrom, and beta = 110.9540(10)degrees. The structure of Tc-2(O2CCH3)(4)I consists of infinite chains of Tc-2(O2CCH3)(4)(+) units linked by bridging iodides, an arrangement similar to the one found in Tc-2(O2CCH3)(4)X (X = Cl, Br). The TcATc separation in Tc-2 (O2CCH3)(4)I (i.e., 2.1146(4) angstrom) is consistent with the presence of a TcATc bond of order 3.5. Magnetic susceptibility measurements reveal Tc-2(O2CCH3)(4)I to be paramagnetic (mu(eff) = 1.84 B.M.) and support the electronic configuration sigma(2)pi(2)delta(2)delta*(1) for the Tc-2(5+) unit in the compound. The compound K[Tc-8(mu-I)(8)I-4]I crystallizes in the monoclinic space group P2(1)/n with a = 8.0018(5) angstrom, b = 14.5125(10) angstrom, c = 13.1948(9) angstrom, and beta = 102.3090(10) degrees, and is the first octanuclear technetium iodide cluster to be reported. The Tc-Tc separations in the [Tc-8(mu-I)(8)I-4] cluster (i.e., 2.164(3) angstrom, 2.5308(8) angstrom and 2.72(3) angstrom suggest the presence of Tc equivalent to Tc triple bonds, Tc=Tc double bonds and Tc-Tc single bonds.

Kerlin, William M.↗

DOE OSTI2018