Results 21 to 30 of about 44,632 (309)
Barium Depletion in Hollow Cathode Emitters [PDF]
45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009 Dispenser hollow cathodes rely on a consumable supply of Ba released by BaO-CaO-Al2O3 source material in the pores of a tungsten matrix to maintain a low work function surface. The examination of cathode emitters from long duration tests shows deposits of tungsten at the downstream end that appear to block the flow of Ba from the interior. In addition,
James E. Polk +3 more
openaire +2 more sources
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
doaj +1 more source
Results in Physics, 2019 Diamond-like carbon (DLC) films exhibit exceptional tribological characteristics, but their practical application requires the development of scalable methods for uniform film deposition.
Weiwei Sun +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
doaj +1 more source
Complex Hollow Structures of Cobalt(II) Sulfide as a Cathode for Lithium–Sulfur Batteries
International Journal of Electrochemical Science, 2020 Lithium-sulfur batteries are considered the most promising candidates in the next generation of electrochemical energy storage because of their huge advantages in energy density, coulombic efficiency and price.
Miaomiao Li, Wangjun Feng, Xuan Wang
doaj +1 more source
DC/DC converter to power spectral lamps
Российский технологический журнал, 2023 Objectives. The paper describes the creation of a DC/DC converter for powering hollow cathode lamps widely used currently as highly stable sources of spectral lines in spectral absorption analyzers and other applications.
M. Yu. Nikolshin +2 more
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Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source
Data in Brief, 2018 In this data, the statistical analyses of vanadium oxide microspheres cathode materials are presented for the research article entitled “Statistical analyses on hollow and core-shell structured vanadium oxides microspheres as cathode materials for ...
Xing Liang, Guohua Gao, Guangming Wu
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Materials Research Letters, 2022 Electrochemical water splitting is one of the most efficient strategies to generate clean energy H2. Herein, a novel hollow Co3S4/CuS@CoNi-LDH nanocomposite was designed.
Ge Li +9 more
doaj +1 more source
Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries
Advanced Functional Materials, EarlyView.Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai +6 more
wiley +1 more source