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Showing 1 to 20 of 34 for “"Spray pyrolysis"”.
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Porous Materials Prepared by Ultrasonic Spray Pyrolysis
The second approach was used to prepare meso- and macroporous carbons. A variety of carbon morphologies were observed (as indicated by SEM and TEM). Analysis of the carbon precursors using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) suggests that the decomposition …
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Micro- and nanostructured materials via ultrasonic spray pyrolysis
… and industrially scalable technique, ultrasonic spray pyrolysis (USP) is a powerful synthetic tool especially for application-based materials due to the scalability of this technique and the environmentally friendly nature of many of the common precursors and templating methods. More importantly, …
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Microstructured materials synthesis via salt-assisted ultrasonic spray pyrolysis
… complicated, multi-step procedures. Ultrasonic spray pyrolysis (USP) is an industrially-scalable technique that has been shown to yield relatively monodisperse sub-micron particles in a continuous process using inexpensive and, often, environmentally-friendly precursors. The incorporation of an …
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Optimization of layered battery cathode materials synthesized via spray pyrolysis
… lithium ion batteries. To this end we advance spray pyrolysis for the synthesis of the layered NMC composite materials, which are showing high promise as a cathode material. Spray pyrolysis produces high purity materials, and the limited number of process parameters allows for low cost and …
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Scalable Synthesis of Solid-State Electrolytes Using Flame-Assisted Spray Pyrolysis
… oxide-based SSEs. In this work, flame-assisted spray pyrolysis (FASP), an inexpensive, scalable synthesis method, was used to produce SSE powders which can be further processed to fabricate thick pellet or thin-tape solid-state electrolyte samples. Li6.25Al0.25La3Zr2O12 (Al-doped LLZO) was …
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Metal oxide sorbents for carbon dioxide capture prepared by ultrasonic spray pyrolysis
… of CaO materials synthesized by ultrasonic spray pyrolysis (USP) are presented. It is shown that the morphology of USP-synthesized CaO sorbents can be easily controlled but that there is little difference between each sorbent in cyclic carbonation/calcination stability. Sorbents synthesized …
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Modeling and Spray Pyrolysis Processing of Mixed Metal Oxide Nano-Composite Gas Sensor Films
… of mixed metal oxide thin film growth using spray pyrolysis technique (SPT). An experimental setup is used to synthesize mixed metal oxide films on a heated substrate. The films are analyzed using a variety of characterization tools. The results are used to validate the mathematical model. …
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Optimization of Spray Pyrolysis for the Synthesis of Cathode Materials for Lithium- and Sodium-ion Batteries
… and improve homogeneity of the product, we use spray pyrolysis for synthesizing multi-component metal oxide cathode materials. Spray pyrolysis, a promising development for larger scale synthesis in industry, requires shorter residence time in the reactor, eliminates washing and purification …
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Synthesis and characterisation of Titania thin films
… reporting TiO2 thin film fabrication by spray pyrolysis. A conceptual model of spray pyrolysis mechanism was developed and validated as a diagnostic tool to explain the deposition process, which shows that CVD can be achieved by this method. Effect of deposition temperature: TiO2 films …
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Ultrasonic synthesis of materials for energy conversion devices
… with unique properties, while ultrasonic spray pyrolysis shows promising results for the mass production of the nanostructured materials. Therefore in this dissertation, synthesis of nanostructured materials by applying ultrasound for the better performing energy conversion and storage …
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Aerosol Synthesis Of Cathode Materials For Li-Ion Batteries
… packing density is required. In this research, spray pyrolysis and flame spray pyrolysis are successfully developed to produce high-quality, spherical cathode materials. These processes have many advantages over conventional processes including:: 1) the ability to consistently produce uniform …
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Calcium oxide-based sorbents for CO2 capture at high temperature
… approaches, mechanochemistry and ultrasonic spray pyrolysis (USP), were utilized to prepare highly stable CaOcontaining sorbents for CO2 capture. The mechanochemical approach is as an example of top-down synthesis of materials, while spray pyrolysis is considered a bottom-up approach. First, …
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Nano-scale Glucose Fuel Cells for Energy Harvesting in the Human Body Based on Proton Conduction in Cerium Oxide
… a ceria model system deposited via wet-chemical spray pyrolysis, sufficient proton conductivity is observed. Moreover, slow hydration kinetics, at the order of several days, is detected in ceria, which could explain the large discrepancies of observed proton conductivity in the literature to …
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Understanding and Tuning Nanostructured Materials for Chemical Energy Conversion
… Hollow CuO spheres were synthesized by aerosol spray pyrolysis, employing a gas blowing mechanism for the formation of hollow structure during aerosol synthesis. The materials synthesized as oxidizers in nanothermite demonstrated superior performance, and of particular note, periodate salts …
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Growth and characterisation of textured superconducting tapes
… steel and Hastelloy C276 by the ultrasonic Spray Pyrolysis technique, using magnesium nitrate and magnesium acetate as precursors at many different conditions. Thermogravimetrical analysis (TGA) of the decomposition of the precursors was used as a guideline temperature for the thin film …
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Optimization of Fasp for Li-Ion Cathode Material Production
… them. The FASP system uses Flame-Assisted Spray Pyrolysis, and the principles of combustion to speed the process of creating the materials for lithium-ion cathodes, more specifically the NCM-811 variation of the lithium-ion batteries. This study aims to identify key factors in improving the …
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CVD synthesis of graphene
… relatively inexpensive precursor materials. Spray pyrolysis, a simple and scalable technique for the manufacture of few layer graphene using ethanol and various sodium precursors was demonstrated, which showed polymer composite, electronic device and transparent thin film application. Few …
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Understanding and enhancing multi-pollutant control using carbon-based materials
… Catalytic carbons were prepared via ultrasonic spray pyrolysis and potential applications for these materials were proposed. Next, activated carbons were tested as catalysts for NO oxidation and adsorbents for toxic industrial chemicals, including HCN. The research culminates by investigating …
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