Results 121 to 130 of about 261,100 (291)
Advanced Science, EarlyView.High‐mass‐loading carbon cathodes are essential for practical zinc‐ion hybrid capacitors but suffer from severe transport limitations. By combining low‐tortuosity freeze‐dried pore channels with carbon nanotube conductive networks, simultaneous optimization of ion and electron transport is achieved, enabling high‐rate, long‐life pouch cells and ...
Jiacheng Wu +8 more
wiley +1 more source
Advanced Science, EarlyView.Ru‐doping‐induced defect engineering enables freestanding Ru–MoO3‐x flexible films with enriched oxygen vacancies, modulated band structure, and enhanced charge transport. The optimized electrode delivers ultrahigh capacitance approaching the theoretical limit of MoO3, while assembled asymmetric supercapacitors exhibit high energy density, wide‐voltage
Xiaoqing Bin +8 more
wiley +1 more source
Comprehensive Review of Synthesis, Structure, and Electrochemical Performance of LiFePO4
Advanced Science, EarlyView.Olivine‐structured LiFePO4 (LFP) nanomaterials are the most effective cathode materials for lithium‐ion battery applications. Here, we report how precursor chemistry, synthesis routes, morphology control, carbon engineering, and doping strategies govern phase formation, charge transport, and electrochemical behaviour of LFP cathodes.
Lihui Yin +9 more
wiley +1 more source
The Hollow Cathode Source [PDF]
, 1951 The hollow cathode glow was discovered by Puschen in 1916. He recognized its value as a source for general high resolution spectroscopy and did considerable work with it.
Lloyd, Raymond Clare
core +1 more source
Observation of the hollow cathode effect from a dielectric cathode
, 2010 The hollow cathode effect (HCE) is investigated in the dielectric hollow cathode structure in a Ne–Xe mixture at 4%. The influence of the dielectric is shown experimentally by the relationship between voltage and current peaks.
Se Jong Lee +5 more
core +1 more source
Disentangling Elemental Roles in an Amorphous Medium‐Entropy Electrocatalyst for Oxygen Evolution
Advanced Science, EarlyView.An amorphous medium‐entropy FeCoNiMo‐a catalyst with a unique nanoring architecture is synthesized via a solvothermal method. The catalyst exhibits exceptional stability in anion exchange membrane water electrolysis, maintaining stable operation for over 600 h at 1 A cm−2.
Jinhu Wu +14 more
wiley +1 more source
Multiple Hollow Cathode Wear Testing [PDF]
, 1994 A hollow cathode-based plasma contactor has been baselined for use on the Space Station to reduce station charging. The plasma contactor provides a low impedance connection to space plasma via a plasma produced by an arc discharge.
Soulas, George C.
core
Nanocluster‐Assisted OH Ligand Modification Optimizes Activity and Stability of Fe‐N‐C Catalysts
Advanced Science, EarlyView.A nanocluster‐assisted ligand engineering stabilizes OH‐modified FeN4 active sites through strong electronic coupling between isolated Fe atoms and adjacent nanoclusters. This synergy optimizes oxygen‐intermediate adsorption, lowers ORR energy barriers, and breaks the conventional activity–stability trade‐off, enabling high ORR activity, exceptional ...
Xue Zhao +6 more
wiley +1 more source
Hydrogen hollow cathode ion source [PDF]
, 1980 A source of hydrogen ions is disclosed and includes a chamber having at one end a cathode which provides electrons and through which hydrogen gas flows into the chamber. Screen and accelerator grids are provided at the other end of the chamber.
Roman, R. F. +2 more
core
Design and Analysis of Hollow Cathode with Powder Bed Fusion
, 2021 A Detailed report on the Design and Analysis of manufacturing of hollow cathode with Powder bed Fusion has been presented. Potential materials for different Hollow cathode parts available are also presented.
THALLAPALLY, SATHEESH
core