Results 131 to 140 of about 163,771 (279)

APPLICATION OF CENTRAL COMPOSITE DESIGN FOR OPTIMIZATION THE DETERMINATION OF LEAD USING ADSORPTIVE CATHODIC STRIPPING VOLTAMMETRY [PDF]

open access: yes, 2016
This paper describes an optimization method for rapid determination of lead from Maninjau lake waters by adsorptive cathodic stripping voltammetry using central composite design.
Deswati, Deswati   +4 more
core  

Ru‐Doping‐Engineered Oxygen Vacancies in MoO3‐x Nanostructured Films With Ultrahigh Capacitance for Flexible Asymmetric Supercapacitors

open access: yesAdvanced 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

Ultrafast Chemical Pre‐Sodiation of Pseudocapacitive CaV8O20 Anodes for High‐Performance Sodium‐Ion Capacitors

open access: yesAdvanced Science, EarlyView.
An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal   +7 more
wiley   +1 more source

Geometry‐Regulated Electrode‐Wide Nucleation Patterns in Aqueous Zinc Anodes

open access: yesAdvanced Science, EarlyView.
Laser‐ablated 3D hole patterning enables geometry‐driven control of Zn deposition in aqueous batteries. The hole opening ratio (HOR) governs electrode‐wide nucleation patterns by regulating the spatial distribution of nucleation sites and the evolution of early‐stage Zn deposits.
Seyoung Han   +4 more
wiley   +1 more source

Bare and Polymer-Coated Indium Tin Oxide as Working Electrodes for Manganese Cathodic Stripping Voltammetry. [PDF]

open access: yesAnal Chem, 2016
Rusinek CA   +6 more
europepmc   +1 more source

Basal Plane Graphene Coated Zn Powder for High Performance Aqueous Zn Metal Batteries

open access: yesAdvanced Science, EarlyView.
A mechanofusion‐driven dry coating forms a hydrophobic graphene shell on Zn powder, stabilizing the electrode‐electrolyte interface. This basal‐plane‐rich protective layer modifies the Zn2+ solvation environment and promotes preferential growth along the (002) plane, suppressing dendrite and parasitic reactions.
Dongju Kim   +8 more
wiley   +1 more source

Bidirectional Soft Catalysts for Improved Power Performance of Li‐S Batteries

open access: yesAdvanced Science, EarlyView.
A soft polymer‐metal catalyst is integrated into the binder to create a catalytically active microenvironment that accelerates bidirectional sulfur redox kinetics in lithium‐sulfur batteries. A model polyvinyl alcohol‐Cu catalyst enables high areal capacities at demanding current densities and stable cycling in pouch‐cell prototypes at 0.5 C, achieving
Maleesha M. Nishshanke   +7 more
wiley   +1 more source

DETERMINATION OF SELENIUM IN FRESH-WATERS BY CATHODIC STRIPPING VOLTAMMETRY AFTER UV IRRADIATION

open access: yes, 1995
An analytical method was developed for the determination of total dissolved selenium in fresh waters, using linear sweep cathodic stripping voltammetry (CSV) in combination with UV photolytic digestion.
NYHOLM, L   +3 more
core  

Mesoporous PU/PEDOT:PSS Electrodes Reveal Population‐Level Stochastic Bioelectrical Dynamics in Marine Diatoms

open access: yesAdvanced Science, EarlyView.
Mesoporous mixed ionic‐electronic PU/PEDOT: PSS electrodes enable label‐free detection of stochastic extracellular bioelectrical dynamics in living Phaeodactylum tricornutum. Living diatoms actively modulate interfacial ionic dynamics, establishing stochastic electrochemical noise as a sensitive probe of microbial bioelectrochemical activity and a new ...
David M. S. Silva   +7 more
wiley   +1 more source

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