Results 91 to 100 of about 262,231 (292)

Effect of Rapid Hollow Cathode Plasma Nitriding Treatment on Corrosion Resistance and Friction Performance of AISI 304 Stainless Steel. [PDF]

open access: yesMaterials (Basel), 2023
Lu J   +11 more
europepmc   +1 more source

Tri‐Functional Electrocatalysis for Zinc–Air Battery Coupled Water Splitting: A Catalyst‐Electrode‐Device‐System Perspective

open access: yesAdvanced Science, EarlyView.
This review establishes a catalyst–electrode–device–system framework for tri‐functional HER/OER/ORR electrocatalysis that couples water splitting with Zn–air batteries. Five catalyst families are covered: noble‐metal, metal‐based, single‐atom, heterostructure, and metal‐free systems.
Xixi Di   +9 more
wiley   +1 more source

Influence of the radial spacing between cathodes on the surface composition of iron samples sintered by hollow cathode electric discharge

open access: yesMaterials Research, 2001
The present work reports an investigation of the influence of the radial spacing between cathodes on the iron sintering process by hollow cathode electrical discharge, with surface enrichment of the alloying elements Cr and Ni.
S.F. Brunatto, I. Kühn, J.L.R. Muzart
doaj   +1 more source

Hollow cathode apparatus [PDF]

open access: yes, 1984
A hollow cathode apparatus is described, which can be rapidly and reliably started. An ignitor positioned upstream from the hollow cathode, generates a puff of plasma that flows with the primary gas to be ionized through the cathode.
Aston, G.
core  

Nickelferrite on Pnictogen Functionalized Carbon Nanohorns. Bifunctional ORR and OER Catalysts in Rechargeable Zinc‐Air Batteries

open access: yesAdvanced Science, EarlyView.
A systematic study on the performance of N,P‐doped NiFe2O4@CNH bi‐functional hybrid electrocatalysts for rechargeable zinc‐air batteries is presented. The importance of P, N‐doping and the intimate tethering of nickel‐ferrite nanocubes on the carbon nano‐horn (CNH) surface which are well dispersed on the surface of N,P doped CNHs.
Sudheer Kumar Yadav   +4 more
wiley   +1 more source

XI. On cathode and canal rays from hollow cathodes [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1908
n ...
openaire   +2 more sources

12CaO-7Al2O3 Electride Hollow Cathode [PDF]

open access: yes, 2017
The use of the electride form of 12CaO-7Al2O3, or C12A7, as a low work function electron emitter in a hollow cathode discharge apparatus is described.
Williams, John D.   +2 more
core  

Anode‐Free Sodium Metal Batteries: From Materials Design to System‐Level Integration

open access: yesAdvanced Science, EarlyView.
Anode‐free sodium metal batteries hold no sodium reserve, so every inefficiency becomes permanent loss. Resolving the inventory into reversible, dead, and chemically bound fractions exposes what Coulombic efficiency hides. Practical 500‐cycle operation requires above 99.95%, a threshold few systems meet under lean electrolyte and high areal capacity ...
Hamid Hussain   +10 more
wiley   +1 more source

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