Results 81 to 90 of about 873,347 (342)
Advanced 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
International Journal of Electrochemical Science, 2018 The effective control of the nanostructure is recognized as an effective method for improving the electrochemical performance of the LiFePO4 cathode; nevertheless, it is still a great challenge to simultaneously achieve high tap density and excellent ...
Yuan Jin, Haiyan Wang, Xincun Tang
doaj +1 more source
A Hollow Cathode Magnetron (HCM) [PDF]
, 1998 A new type of plasma sputtering device, named the hollow cathode magnetron (HCM), has been developed by surrounding a planar magnetron cathode with a hollow cathode structure (HCS).
Cohen, S.A., Wang, Z.
core +1 more source
Bioelectrochemically Powered Out‐of‐Equilibrium Hydrogels Enable Feedback‐Regulated Functions
Advanced Science, EarlyView.A bioelectrochemically powered hydrogel operates far from equilibrium via an antagonistic redox cycle that regulates disulfide exchange within a polyrotaxane network. Coupling electrochemical mediator cycling with enzymatic feedback enables dynamic control of hydrogel mechanics and transport properties, driving glucose‐responsive insulin release with ...
Roberto Baretta, Marco Frasconi
wiley +1 more source
, 2009 This study shows that the practical scaling of a hollow cathode thruster device to MEMS level should be possible albeit with significant divergence from traditional design.
Gabriel, Stephen B +5 more
core +1 more source
Frontiers in Chemistry, 2019 LiFeBO3/C cathode material with hollow sphere architecture is successfully synthesized by a spray-drying method. SEM and TEM results demonstrate that the micro-sized LiFeBO3/C hollow spheres consist of LiFeBO3@C particles and the average size of LiFeBO3 ...
Yulei Sui +7 more
doaj +1 more source
Self‐Responsive Plastron Maintenance on a Superhydrophobic Mesh via Locally Integrated Electrolysis
Advanced Science, EarlyView.This work presents a self‐switchable SHM‐E surface that enables rapid, autonomous plastron self‐repair and long‐term stability. Plastron loss triggers circuit closure and localized electrolysis, while capillary spreading rapidly restores a continuous plastron and self‐terminates the current.
Jiaming Wang, Zhen Zhang, Yuhong Liu
wiley +1 more source
Dependence of pre-breakdown time on ionization processes in a pseudospark discharge
AIP Advances, 2017 The formation and development of pseudospark discharge, especially the onset of the breakdown, are of great technological interests in multiple applications due to their influences on the limits of current rising and fast switching ...
Xiaotong Cao +5 more
doaj +1 more source
Hollow cathode apparatus [PDF]
, 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
Advanced Science, EarlyView.Scalable synthesis of single‐crystal mid‐nickel cathodes demands precise kinetic control over competing densification and grain growth. Oxygen partial pressure emerges as a quantitative descriptor of effective grain‐boundary mobility, acting through changes in the apparent sintering activation barrier.
Hyeonho Park +9 more
wiley +1 more source