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Showing 1 to 20 of 23 for “"Electrochemical synthesis"”.
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Electrochemical synthesis of functional nanowires
… with lengths up to 10_m were synthesized through electrochemical deposition in the pores of anodic aluminium oxide (AAO) and polycarbonate track-etched (PCTE) templates. With the work focusing on CdSe nanowires, results from the cyclic electrodeposition/stripping method was reported with different …
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Electrochemical Synthesis of Single Crystal Metal Nanowires
… efficient and economical approach for template synthesis of one-dimensional (1D) nanostructured materials. Based on the porous membranes as templates during electrodeposition, metallic nanowires, nanorods, and nanotubes can overcome the geometrical restrictions to be inserted into the nanometric …
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Electrochemical Synthesis and Characterisation of Multimetallic Nanostructured Electrocatalysts
… concerns investigations on novel multistage electrochemical deposition of nanostructured systems composed of noble metals platinum, ruthenium, and gold. Various electrochemical synthetic pathways were systematically explored producing multilayered nanoscale electrode systems composed of Pt, …
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Electrochemical synthesis of CeO2 and CeO2/montmorillonite nanocomposites.
… (4 ~ 10 nm) have been produced with anodic electrochemical synthesis. X-ray diffraction and Raman spectroscopy were employed to investigate lattice expansion phenomenon related to the nanoscale cerium oxide particles. The pH of reaction solution plays an important role in electrochemical …
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Electrochemical Synthesis of Propylene Oxide With Alternating and Direct Current
Electro-organic processes typically contain complex reaction sequences which couple the heterogeneous electrode reactions with an extended homogeneous reaction pathway. An experimental - theoretical approach was applied to understand the coupled diffusion-reaction processes and establish general …
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ELECTROCHEMICAL SYNTHESIS OF MAGNETIC MATERIALS FOR MAGNETIC RECORDING AND MEMS APPLICATIONS
With the increase in the areal density for magnetic recording disks, the bits are becoming smaller so that more bits can be accommodated in a given area of disk. However, there is a certain limit up to which the bits can be made smaller until it reaches the superparamagnetic limit, where bits …
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Electrochemical synthesis and characterisation of polypyrrole/chitosan films doped with molecular anions
… results are presented and discussed on the synthesis of polypyrrole-chitosan composite films. These films were investigated for the incorporation and release of methyl orange (a model anionic dopant), dexamethasone (an anti-inflammatory drug) and oxacillin (an antibiotic). All drug-doped …
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Electrochemical Synthesis of Soft Magnetic Alloys and Laminates for High Frequency Field Application
Thin-film inductor cores are designed to minimize energy losses at high frequencies, particularly above 100 MHz. Such design improves the efficiency of power delivery in applications like voltage regulators, MEMS, and digital-to-analog devices. This study outlines the development and fabrication of …
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Electrochemical Synthesis of Silver Nanoparticles for Applications in Nitrate Detection, Catalysis and Antibacterial Activity
… 0.1 mol dm-3 KNO3 and 423.75 g dm-3 PVP with an electrochemical pulse of -6.0 V vs Ag+/Ag. The PVP-protected silver nanoparticles showed excellent stability over a 30 day period and instability was only observed on the addition of AgNO3 or KNO3. The PVP-protected nanoparticles were successfully …
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Laminar Flow-Based Microchemical Systems for Power Generation, Electrochemical Synthesis, and Biological Cell Studies
… in microfluidic systems for (1) biocatalytic synthesis of fine chemicals by microscale-enabled efficient regeneration of cofactors, as well as for (2) the study of intestinal stem cells on a surface that mimics their in vivo environment. In the first system, the ability to focus reagent …
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Nanostructured Catalysts for Green Fuels Production: Electrochemical Synthesis of NH3 and H2 [Catalizzatori nanostrutturati per la produzione di Green Fuels: sintesi elettrochimica di NH3 e H2]
L'ammoniaca (NH3) è ampiamente utilizzata in molti settori, dall'agricoltura alla farmaceutica, ed è recentemente emersa come un promettente vettore di energia carbon-free grazie al suo alto contenuto di idrogeno. Tradizionalmente, la produzione di ammoniaca si basa sul processo Haber-Bosch, che …
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Electrochemical synthesis of polyesters and polyamides. A study of the polymerisation of lactams, lactones and the anhydride/propylene oxide system by direct electrolysis of their conducting solutions
… attempted by preparing living polystyryl anions electrochemically followed by the addition of E-caprolactone. The analysis by differential scanning calorimetry and gel permeation chromatography showed that the attempted block copolymer was composed of entirely mixtures of two homopolymers. The …
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Electroorganic synthesis in microreactors
At present, description of applications, using electrochemical micro reactor are rare. Such techniques are extremely desirable to pharmaceutical companies who are interested in the high throughput synthesis of combinatorial libraries for pharmaceutical evaluation. Furthermore, techniques such as …
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The electrochemical behavior of the lead-thallium system in acidic sulfate solutions
… material in this media. It is also often used in electrochemical synthesis because of its overvoltage characteristics. Unfortunately its mechanical properties are poor, and many ways have been sought to improve them. In recent years, two materials, dispersion-hardened lead and lead-thallium …
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Sonoelectrochemical synthesis of submicron metal powders
Pulsed sonoelectrochemical synthesis is a widely used technique for producing nanoparticles. In this technique, alternating pulses of electric current and power ultrasound are applied to an electrochemical cell to create and suspend particles in the electrolyte. The pulsed technique largely …
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Investigation of novel ammonia production options using photoelectrochemical hydrogen
… Haber-Bosch process is the most dominant ammonia synthesis process which requires very high temperatures and pressures to operate and consumes massive amounts of fossil fuels mainly natural gas leading a non-sustainable process in the long-term. Therefore, alternative methods for ammonia …
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Investigation of the ammonia-formation electrodes for alkaline membrane electrosynthesis
Electrochemical synthesis of ammonia has recently attracted enormous interests from research societies, industries, and governments. Such electrochemical approach has demonstrated the great potential to become the next-generation ammonia-manufacturing technology that is scale-flexible, …
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Fabrication of thin film nanoscale alumina templates
… commercial manufacturing. This technique uses electrochemical synthesis of semiconductor nanostructures in a preformed alumina (Al2O 3) template. The template is created by electrochemically etching, or anodizing, a thin layer of aluminum deposited on a silicon or a glass substrate. When …
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PUSH-PULL COPOLYMERS IN THIN FILM FOR ELECTRONIC APPLICATION
… push-pull copolymers have been synthesized by electrochemical and chemical methods in order to fabricate new devices on flexible substrates, for electronic applications in several areas as electrochromism, solar cells and sensors. Electrochemical synthesis was employed to synthesize copolymers …
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An electrochemical pipette with thin-layer design for rapid electrosynthesis and mechanistic study of the catalytic reactions
In the past few decades, electrochemical organic synthesis has emerged as a transformative approach to modern organic synthesis. Electrochemical methods enable unique reaction pathways for both direct (electrode-driven) and mediated (redox-catalyst-assisted) systems through controlled electron …
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