Results 21 to 30 of about 128 (103)

Sonoelectrochemical Nanoarchitectonics of Crystalline Mesoporous Magnetite @ Manganese Oxide Nanocomposite as an Alternate Anode Material for Energy-Storage Applications

open access: yesCrystals, 2023
In this report, the synergetic sonoelectrochemical method was utilized to produce magnetite nanoparticles was doped with MnO2 with the assistance of ultrasound to form nanoarchitectonic magnetic crystals with a mesoporous magnetite @ manganese dioxide (m-
Jayaraman Kalidass   +2 more
doaj   +1 more source

Investigation of Sonoelectrochemistry Process on Discoloration of Basic Yellow 28 in Presence of Titanium Dioxide Nanoparticles [PDF]

open access: yesشیمی کاربردی روز, 2017
In this work, discoloration of basic yellow 28 using sonoelectrochemical method in presence of titanium dioxide nanoparticles was investigated. The respond surface methodology (RSM) was applied for optimization of discoloration.
Ali Etemadifar   +3 more
doaj   +1 more source

Acoustically‐Induced Water Frustration for Enhanced Hydrogen Evolution Reaction in Neutral Electrolytes

open access: yesAdvanced Energy Materials, Volume 13, Issue 7, February 17, 2023., 2023
Employing high‐frequency (10 MHz) electroacoustic waves in electrochemistry for the hydrogen evolution reaction (HER) redefines the use of traditionally poor catalysts in challenging neutral conditions. The electroacoustic waves induce “water‐frustration” of the electrolyte coupled with efficient convective mass transport, bubble growth suppression and
Yemima Ehrnst   +3 more
wiley   +1 more source

C−H Bond Functionalization under Electrochemical Flow Conditions

open access: yesThe Chemical Record, Volume 22, Issue 6, June 2022., 2022
Technology‐driven electrocatalysis using microreactors for typically inert C−H bonds functionalization to generate molecular complexity, will allow access various chemicals (such as medicinally relevant compounds, fine chemicals, and other valuable derivatives) in continuous, scalable, and sustainable fashion.
Tamlal Pokhrel   +4 more
wiley   +1 more source

A Modulation QCM Applied to Copper Electrodeposition and Stripping

open access: yesElectroanalysis, Volume 33, Issue 12, Page 2529-2538, December 2021., 2021
Abstract A fast electrochemical quartz crystal microbalance with dissipation monitoring (EQCM−D) was applied to copper electrodeposition and subsequent stripping. Accumulation brings the frequency noise down to the mHz range, corresponding to 0.1 % of a monolayer.
Christian Leppin   +3 more
wiley   +1 more source

Magnetic Properties of FePt Nanoparticles Prepared by Sonoelectrodeposition

open access: yesJournal of Nanomaterials, Volume 2012, Issue 1, 2012., 2012
Sonoelectrodeposition is a useful technique to make metallic nanoparticles, using ultrasound during electrodeposition to remove nanoparticles as they grow on the cathode surface. This paper reports some structural and magnetic properties of FePt nanoparticles prepared by this method.
Nguyen Hoang Nam   +6 more
wiley   +1 more source

Optimization of SPE/GC/HPLC Analytical Procedure for Determination of Phenol, Quinones, and Carboxylic Acids in Water Samples

open access: yesInternational Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012
Chromatographic techniques are among the most useful analytical methods. Gas and liquid chromatography were used in the analysis of some organic compounds: phenol, hydroquinone, benzoquinone, and maleic and fumaric acids. The analytical way for the determination of these compounds in water samples was investigated.
Katarzyna Bielicka-Daszkiewicz   +5 more
wiley   +1 more source

Tungsten Nanoparticles Generated in an Atmospheric Pressure Plasma Jet

open access: yesParticle &Particle Systems Characterization, Volume 41, Issue 9, September 2024.
The study demonstrates the successful synthesis of pure tungsten nanoparticles using the HelixJet atmospheric plasma source. By heating a tungsten wire in an argon plasma without oxygen, evaporation of tungsten and the subsequent condensation of metal vapour in the gas stream are achieved, leading to nanoparticles with controlled size and morphology ...
Martin Müller   +3 more
wiley   +1 more source

Studies in sonoelectrochemistry

open access: yes, 1999
The work described in this thesis employs 'dual activation' methodologies and in particular sonovoltammetry to study a variety of electrochemical systems. First, the effect of 20 kHz power ultrasound on the electrochemistry of simple redox systems in both water and acetonitrile is explored and characterised for different cell geometries.
Akkermans, R, Akkermans, Richard P.
openaire   +1 more source

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