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Displaying 2176 - 2200 of 4635

Simulation study of the capacitance and charging mechanisms of ionic liquid mixtures near carbon electrodes

January 4, 2019
Author(s)
Alta Y. Fang, Alexander Y. Smolyanitsky
… planar graphene sheets as electrodes. We demonstrate that ion-electrode van der Waals attractions play an important … the two pure ionic liquids. We characterize cumulative ion densities near electrodes carrying various surface … in the ionic liquid mixtures we identify an effective ion exchanging mechanism wherein charging of the electrodes …

Direct Measurement of Hydrogen Dislocation Pipe Diffusion in Deformed Polycrystalline Pd using Quasielastic Neutron Scattering

July 10, 2014
Author(s)
Brent J. Heuser, Dallas R. Trinkle, Niina Jalarvo, Joseph Serio, Eugene Mamontov, Madhu Sudan Tyagi
The temperature-dependent diffusivity D(T) of hydorgen solute atoms trapped at dislocations - dislocation pipe diffusion of hydorgen - in deformed polycrystalline PdH x(x'0 -3[H]/[Pd] has been quantified with quasi-elastic neutron scattering (QENS) between

Vortex Pinning in Microindented Yba 2 Cu 3 O 7-x Single Crystals

August 1, 2000
Author(s)
Marina Turchinskaya, Douglas T. Smith, Alexander L. Roytburd, Debra L. Kaiser
A high resolution magneto-optical technique with a magnetic indicator film was used to study the effect of a regular array of micrometer-sized mechanical indentations on magnetization dynamics at the surface of a twinned single crystal of Yba 2Cu 3O 7-δ as

Unexpected Gas-Phase Nitrogen-Oxygen Smiles Rearrangement: CID of Deprotonated 2-(N-Methylanilino)ethanol and Morpholinylbenzoic Acid Derivatives

October 21, 2022
Author(s)
Yuxue Liang, Yamil Simon, Pedatsur Neta, Stephen E. Stein
… a five-membered ring rearrangement to form a phenoxide ion C6H5O-. When R = H, such a Smiles rearrangement is … an anilide anion (C6H5NH-, m/z 92) rather than a phenoxide ion (C6H5O-, m/z 93.0343). However, when the amino hydrogen … Smiles rearrangement does occur, leading to the phenoxide ion, as the negative charge can only reside on the oxygen …

Large variations in the composition of ionic liquid-solvent mixtures in nanoscale confinement

July 9, 2019
Author(s)
Alta Y. Fang, Alexander Y. Smolyanitsky
… pore widths only slightly larger than the sizes of bare ion or solvent molecules. The composition of the electrolyte … very narrow pores, while for pore widths close to the bare ion sizes we observe an in-pore ionic liquid mole fraction … of ions from the pore or a slight depletion of ions, while ion population again increases as pore width further …

Molecular Oxygen (O2) Artifacts in Tandem Mass Spectra

November 20, 2024
Author(s)
Yuxue Liang, Pedatsur Neta, Xiaoyu (Sara) Yang, Hugo Garraffo, Tallat Bukhari, Yi Liu, Stephen Stein
… peak that could only be assigned to a peroxyl radical ion. For example, some protonated iodo-aromatics lose iodine … which reacts with O2 to generate a peroxyl radical ion [M+H-I+O2]+·. To confirm the O2 adduction, five compounds … radical peaks, which become dominant while the precursor ion peaks are consumed. The correlation of the peroxyl …
Displaying 2176 - 2200 of 4635
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