Results 71 to 80 of about 25,036 (255)

Electrochemical Characterization of Sodium‐Ion Energy Storage Devices Using a Low‐Cost Microcontroller‐Based Instrument

open access: yesphysica status solidi (a), Volume 223, Issue 1, January 2026.
This study presents a low‐cost, microcontroller‐based instrument for characterizing sodium‐ion supercapacitors. The system measures key parameters‐capacitance, energy density, and resistance‐with precision comparable to commercial devices. It enables affordable, real‐time testing of energy storage materials, supporting the development of sustainable ...
M. Marole, K. G. Tshabalala, R. O. Ocaya
wiley   +1 more source

A Factorial Design and Simplex Optimization of a Bismuth Film Glassy Carbon Electrode for Cd(II) and Pb(II) Determination

open access: yesChemosensors, 2023
This work presents the use of a fractional two-level factorial design to determine the influence of different factors involved in the development of the square-wave anodic stripping voltammetry method.
Matjaž Finšgar, Barbara Rajh
doaj   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

open access: yesAdvanced Materials, Volume 37, Issue 52, December 29, 2025.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner   +4 more
wiley   +1 more source

Eletrodo compósito à base de grafite-araldite®: aplicações didáticas Graphite-araldite® composite electrode: didactic applications

open access: yesQuímica Nova, 2008
A composite electrode prepared by mixing a commercial epoxy resin Araldite® and graphite powder is proposed to be used in didactic experiments. The electrode is prepared by the students and applied in simple experiments to demonstrate the effect of the ...
Carolina Maria Fioramonti Calixto   +2 more
doaj   +1 more source

Different Aspects of the Voltammetric Detection of Vitamins: A Review

open access: yesBiosensors, 2023
Vitamins comprise a group of organic chemical compounds that contribute significantly to the normal functioning of living organisms. Although they are biosynthesized in living organisms, some are also obtained from the diet to meet the needs of organisms,
Denise Kiamiloglou, Stella Girousi
doaj   +1 more source

Anodic stripping voltammetry with graphite felt electrodes for the trace analysis of silver [PDF]

open access: yes, 2016
Graphite felt (GF) is a mass produced porous carbon electrode material commonly used in redox flow batteries. Previous studies have suggested GF may have valuable applications in electroanalysis as a low cost disposable carbon electrode material ...
Ball   +31 more
core   +1 more source

Determination of Paraquat in Real Samples Using a Printed PET‐Based Electrode Modified With Molecularly Imprinted Polymer and Carbonaceous Material

open access: yesElectroanalysis, Volume 37, Issue 12, December 2025.
This study reports the development of an electrochemical sensor printed with graphite‐based ink on a recycled PET substrate. The device was functionalized with a molecularly imprinted polymer (MIP) and multiwalled carbon nanotubes (MWCNTs) for the selective detection of paraquat in water, apple juice, and acerola juice samples, highlighting its ...
Malena Karla Lombello Coelho de Souza   +5 more
wiley   +1 more source

Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges

open access: yesJournal of Electrochemical Science and Engineering, 2022
Due to the rapid growth of the cosmetic industry in recent years, the development of new, reliable, cost-effective, ease of use and rapid methods to assay cosmetics’ quality is of particular importance.
Totka Dodevska   +2 more
doaj   +1 more source

Determination of Lead in Waste Water Using Cyclic Voltammetry by Platinum Wire Electrode [PDF]

open access: yes, 2014
Determination of lead in waste water using cyclic voltammetry by platinum wire electrode has been carried out. The cyclic voltammetry method was performed in a three electrodes system using platinum wire as a working electrode, an Ag/AgCl (saturated KCl)
Riyanto, R. (Riyanto)
core   +2 more sources

Emergence of Electroanalytical Techniques for Arsenic Detection in Water: Recent Trends and Future Perspectives

open access: yesChemElectroChem, Volume 12, Issue 23, November 26, 2025.
This review presents recent advances in electroanalytical techniques for arsenic detection in water. The stripping voltammetry combined with pulse/sweep techniques and integration of nanomaterials, printed sensors, and microfluidics has significantly improved the detection and speciation capabilities.
Abhijnan Bhat   +4 more
wiley   +1 more source

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