Results 31 to 40 of about 261,100 (291)
Review of Scientific Instruments, 1997 The generation of an electron beam by a hollow cathode gun in a cusp magnetic field is discussed. Such a gun is proposed for an electron cooling device without toroids. In a section with a homogeneous magnetic field, this beam experiences a disturbance region near the axis where the electron temperature becomes higher.
CIULLO, Giuseppe +3 more
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Materials & Design, 2021 Lithium-sulfur (Li-S) batteries are deemed as the attractive systems for high-energy storage. However, the polysulfides shuttling with slow redox kinetics has seriously hindered their practical applications. Herein, sulfur-deficient zinc sulfide (ZnS1−x)
Wanjie Gao +5 more
doaj +1 more source
AIP Advances, 2019 We investigated the application of a less hydrogen-dilute and low gas pressure hollow-anode plasma to fast chemical-vapor deposition of photosensitive hydrogenated microcrystalline silicon (μc-Si:H).
Toshihiro Tabuchi +3 more
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Emission characteristics of laser ablation-hollow cathode glow discharge spectral source
Open Chemistry, 2014 The emission characteristics of a scheme combining laser ablation as sample introduction source and hollow cathode discharge as excitation source are presented.
Karatodorov Stefan +2 more
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Triple Langmuir Probes Measurements of LaB6 Hollow Cathodes Plume
Frontiers in Physics, 2019 Lanthanum hexaboride hollow cathodes represent a viable option for high power Hall effect thruster applications, under development for the next generation of manned and robotic interplanetary missions.
Giulia Becatti +4 more
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Aerospace, 2021 LaB6 emitters are commonly used in hollow cathodes that are utilized in electric space propulsion systems. In order to obtain necessary surface current emission densities of 1–10 A/cm2 for cathode operations, LaB6 emitters require temperatures above 1500
Ugur Kokal, Nazli Turan, Murat Celik
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Vacancy-Driven Ni Exsolution in Prussian Blue Analogues Creates Cooperative Defect-Metal Sites for Alkaline Hydrogen Evolution. [PDF]
Adv Sci (Weinh)Multimetal Prussian blue analogues (PBAs) are converted by low‐temperature Ar annealing into a cavity/CN‐vacancy architecture that triggers in situ Ni exsolution, creating dense Ni‐PBA interfacial motifs. These motifs optimize water dissociation and H* adsorption in alkaline media, delivering markedly accelerated HER kinetics and long‐term stability ...
Wang S +5 more
europepmc +2 more sources
Fundamental Ion-Surface Interactions in Plasma Thrusters [PDF]
, 2007 Ion thrusters offer the potential to enable many future interplanetary robotic missions presently under consideration by NASA. To realize the benefits offered by these low thrust devices, the sputtering mechanisms that are responsible for the ...
Kolasinski, Robert David
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International Journal of Electrochemical Science, 2018 The hollow nanostructured Li(Ni1/3Co1/3Mn1/3)O2 (NCM) microspheres with low Li/Ni disorder were fabricated by precursor-template approach and investigated electrochemically as lithium ion batteries (LIBs) cathode. The as-obtained NCM microspheres cathode
Zhenya Kang +3 more
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Protective amorphous carbon coatings on glass substrates
AIP Advances, 2017 Thick amorphous carbon films were deposited by the Magnets-in-Motion (M-M) rf linear hollow cathode at varying acetylene contents in Ar in a hybrid PVD/PE-CVD process directly on glass substrates. The hollow cathode plates manufactured from graphite were
Kaspars Silins +2 more
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