Results 101 to 110 of about 80,622 (294)

The electrochemistry of chemically modified conducting polymers [PDF]

open access: yes
The work described in this thesis concentrates on chemically modified heterocyclic conducting polymers based upon pyrrole, thiophene and indole monomers with -particular emphasis placed upon carboxylic acid substituents.
Dawson, Darryl Hirst
core  

Three-Electrode Dynamic Electrochemical Impedance Spectroscopy as an Innovative Diagnostic Tool for Advancing Redox Flow Battery Technology

open access: yesEnergies
Vanadium redox flow batteries (VRFBs) experience performance losses driven by electrode ageing, yet the underlying mechanisms remain poorly resolved under operational conditions. This work presents a novel application of dynamic electrochemical impedance
Eliza Hałas   +4 more
doaj   +1 more source

Study of the Inhibition Effect of Carbendazim Towards Carbon Steel Corrosion in 0.50M HCl Solutions

open access: yesInternational Journal of Electrochemical Science, 2017
The inhibition effect of carbendazim on the corrosion behavior of carbon steel in 0.50M HCl solution was investigated using weight loss, potentiostatic polarization and electrochemical impedance spectroscopy techniques.
Ismat H. Ali, Mohammad I. Khan
doaj   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang   +15 more
wiley   +1 more source

Electrochemical sensing of aerobic marine bacterial biofilms and the influence of nitric oxide attachment control

open access: yes, 2011
An attractive alternative to ineffective and inefficient biocide dosing strategies for seawater piping systems would be to monitor, quantitatively evaluate and then induce biofilm disruption when necessary using an environmentally friendly biocide.
Werwinski, Stephane
core  

Dipole‐Engineered Conductive Additives for Ultrastable Interphase Evolution in High‐Areal‐Capacity Silicon Anodes

open access: yesAdvanced Functional Materials, EarlyView.
In the work reported herein, dipole‐engineered sulfonated carbon nanofibers enable conductive additives to actively regulate interphase formation in silicon anodes. Polar sulfonyl groups guide electrolyte decomposition to form a compact LiF‐rich interphase while promoting robust integration with silicon.
Song Kyu Kang   +6 more
wiley   +1 more source

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

open access: yesAdvanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi   +6 more
wiley   +1 more source

A novel technique for evaluating the degradation of engine components non-destructively

open access: yes, 2002
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Impedance spectroscopy (IS) was used to evaluate the microstructural changes of a thermally-grown oxide (TGO) layer on a nickel-based superalloy or bond ...
Ali, Md Shawkat
core  

Characterization of Chitosan Polyethylene glycol Hydroxyapatite composite coatings fabricated by dip coating

open access: yesRevista UIS Ingenierías
The development and characterization of bioactive surfaces based on chitosan-polyethylene glycol coatings modified with hydroxyapatite on Ti6Al4V alloy were conducted to enhance bioactivity.
Anderson Sandoval-Amador   +4 more
doaj   +1 more source

Modeling electrochemical impedance spectroscopy [PDF]

open access: yesCurrent Opinion in Electrochemistry, 2019
Abstract Electrochemical impedance spectroscopy (EIS) is a powerful technique that is used for characterizing electrochemical systems. The EIS data can be correlated with many key physical properties, including rates of diffusion and reaction, and microstructural features.
openaire   +2 more sources

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