Double diffusion effect on the bio-convective magnetized flow of tangent hyperbolic liquid by a stretched nano-material with Arrhenius Catalysts

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 44, P. 102838 - 102838

Published: Feb. 23, 2023

The idea of activation energy appearing in a chemical reaction has been widely applied to the production biodiesel, hydrogen, oil storage, geothermal manufacturing, base liquid mechanics, emulsified, food significant renewable source, as well sewage systems. This study aims investigate resultant repercussions double diffusion, energy, Brownian motion, thermal radiation, thermophoresis, viscous dissipation, magnetic field, and Joule heating on bioconvection tangent hyperbolic nanofluid flow over vertical stretching porous surface containing microbe (gyrotactic microorganisms). fluid transport equations are converted into ordinary differential using appropriate self-similarity variables after being solved finite difference method. impacts key parameters fluid's properties depicted graphs tables. When dimensionless is higher, mass transfer rate at stretched nanomaterial sheet drops. concentration near minimizes by increasing porosity parameter value, but opposite behavior happens far from sheet.

Language: Английский

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A Review on Sustainable Manufacturing of Ceramic-Based Thin Films by Chemical Vapor Deposition (CVD): Reactions Kinetics and the Deposition Mechanisms

Coatings, Journal Year: 2023, Volume and Issue: 13(1), P. 188 - 188

Published: Jan. 14, 2023

Chemical vapor deposition (CVD) is a process that solid formed on substrate by the chemical reaction in phase. Employing this technology, wide range of materials, including ceramic nanocomposite coatings, dielectrics, and single crystalline silicon can be coated variety substrates. Among factors influencing design CVD system are dimensions or geometry substrate, temperature, composition type process, temperature within chamber, purity target material, economics production. Three major phenomena surface (kinetic), diffusion mass transfer reaction, desorption involved during process. Thermodynamically, technology requires high temperatures low pressures most systems. Under such conditions, Gibbs free energy quickly reaches its lowest value, resulting production solids. The kinetic control should always used at temperatures, done temperatures. coating deposited 900–1400 °C. Overall, it shown here controlling chamber precursors, together with flow rate precursors into possible to partially microstructure coatings

Language: Английский

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Biofabrication of Fe3O4 Nanoparticles from Spirogyra hyalina and Ajuga bracteosa and Their Antibacterial Applications

Molecules, Journal Year: 2023, Volume and Issue: 28(8), P. 3403 - 3403

Published: April 12, 2023

Iron oxide nanoparticles (NPs) have attracted substantial interest due to their superparamagnetic features, biocompatibility, and nontoxicity. The latest progress in the biological production of Fe3O4 NPs by green methods has improved quality applications significantly. In this study, fabrication iron from Spirogyra hyalina Ajuga bracteosa was conducted via an easy, environmentally friendly, cost-effective process. fabricated were characterized using various analytical study unique properties. UV-Vis absorption peaks observed algal plant-based at 289 nm 306 nm, respectively. Fourier transform infrared (FTIR) spectroscopy analyzed diverse bioactive phytochemicals present plant extracts that functioned as stabilizing capping agents NPs. X-ray diffraction revealed crystalline nature both biofabricated small size. Scanning electron microscopy (SEM) algae are spherical rod-shaped, averaging 52 75 Energy dispersive showed green-synthesized require a high mass percentage oxygen ensure synthesis. exhibited stronger antioxidant properties than algal-based efficient antibacterial potential against E. coli, while displayed higher zone inhibition S. aureus. Moreover, superior scavenging compared This might be greater number plants surround during fabrication. Hence, over improves applications.

Language: Английский

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Electrocatalytic three-component reactions: synthesis of tellurium-containing oxazolidinone for anticancer agents

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(13), P. 5024 - 5029

Published: Jan. 1, 2023

A new synthetic method involving electrochemical catalysis were used to synthesize various tellurium-containing oxazolidinones which showed better antitumor activity compared other oxazolidinones.

Language: Английский

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Electrochemical chemoselective thiocarbamylation of late-stage Tyr-containing drugs and peptides

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(10), P. 3382 - 3388

Published: Aug. 2, 2024

Language: Английский

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Analysis of XGaO3 (X = Ba and Cs) cubic based perovskite materials for photocatalytic water splitting applications: a DFT study

Heliyon, Journal Year: 2023, Volume and Issue: 9(3), P. e14112 - e14112

Published: Feb. 26, 2023

Energy conversion has become an important technology for meeting energy production and consumption in the modern era. Water splitting solar cell technologies are projected to close gap between demand consumption. Therefore, XGaO3 (X = Ba Cs) compounds having characteristics i.e., electrical, optical, mechanical, structural depicted by using a density functional theory (DFT) based CASTEP software with ultrasoft pseudo-potential plane-wave Generalized Gradient Approximation Perdew Burke Ernzerhof exchange correlation (GGA-PBE). According findings, all of these have cubic "pm3m" structure space group 221. The CsGaO3 BaGaO3 direct indirect band gaps, respect electronic band-structure recreations. Density states like total (TDOS) partial (PDOS) commend extent localization electrons numerous bands. optical properties explored adjusting dispersion curve/relation theoretical dielectric function (DF) scale corresponding peaks. As result, materials could be used consume light visible zone via photo catalysis. combination can produce effective results, so remarkable potential application sensing water splitting.

Language: Английский

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Recent advances in gold nanoparticles modified electrodes in electrochemical nonenzymatic sensing of chemical and biological compounds

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 153, P. 110767 - 110767

Published: April 29, 2023

Language: Английский

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Preparation of hybrid conducting polymers blend nanocomposite for energy conversion using experimental data and TD-DFT/DMOl3 computations

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 23, P. 2852 - 2867

Published: Feb. 4, 2023

In the presence of sodium dodecyl sulphate in an acidic solution while using ferric chloride as oxidizing agent, a blend three conducting polymers poly (ortho-phenylene diamine) (PoPDA), (meta phenylene diamine), and polypyrrole was produced. ZrO2 nanoparticles were prepared via sol-gel method hybrid nanocomposite zirconium oxide (TCPB/ZrO2)HNC synthesized. Using Physical Vapor Deposition technology, thin film from (TCPB/ZrO2)HNC. Density functional theory (DFT) also used to develop optimization TD-DFTD/Mol3 Cambridge Serial Total Energy Bundle (TD-FDT/CASTEP). By closely matching reported XRD Raman spectra, TD-DFT computations validated molecular structure studied materials confirmed its structure. According calculations, has average crystallite size 61.67 nm. The direct indirect optical energy bandgaps for (TCPB/ZrO2)HNC, are 2.352 2.253 eV, respectively. As measured by TD-DFT/DMol3, isolated molecule (TCPB/ZrO2) HNC bandgap 2.415 eV. properties suggested CASTEP agree quite well with values obtained experimentally. large is advantageous various storage applications.

Language: Английский

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Electrochemical synthesis of oxazolesviaa phosphine-mediated deoxygenative [3 + 2] cycloaddition of carboxylic acids

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(4), P. 1435 - 1441

Published: Jan. 1, 2023

A phosphine-mediated deoxygenative [3 + 2] cycloaddition reaction for oxazole synthesis via electrochemical anodic oxidation is herein reported.

Language: Английский

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Electro-reductive carboxylation of C Cl bonds in unactivated alkyl chlorides and polyvinyl chloride with CO2

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: 35(12), P. 110104 - 110104

Published: June 8, 2024

Language: Английский

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