Papers – Page 56 – TechConnect Briefs

The Morphology and Evolution of Zinc Oxide Flowers Like by Direct Synthesis and Sequential Nucleation Growth

Elizondo N., Obregon R., Perez E., University of North Texas, US

The morphology evolution characteristics of ZnO nanostructures were systematically studied from dense rods to ZnO flowers like. The ZnO flowers like were prepared by direct decomposition of a Zn(OH)42– precursor. Zinc oxide with a diversity [...]

Composition- and Size-Controlled Synthesis of Mn-Zn Ferrite Nanocrystals for Potential Magnetocaloric Applications

Calderón-Ortiz E., Perales-Perez O., Urcio S., University of Puerto Rico-Mayagüez, PR

The use of ferromagnetic fluid for cooling applications where the fluid can be pumped with no moving mechanical parts, using the magnetocaloric effect, can be a great advantage for many applications where maintenance or power [...]

Nanocrystalline NiFe2O4 particles synthesized by citrate – Urea assisted combustion process

Prakash I., Nallamuthu N., Muralidharan P., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Lithium-ion batteries are most widely used in high quality electronic devices because of their high energy density, high voltage and long cycle-life. Current research in this pointed towards the development of new electrode and electrolyte [...]

Synthesis of Nanocrystalline ZrO2 Powder by the Polyol Route

Vivekanandhan S., Venkateswarlu M., Rawls H.R., Satyanarayana N., Univ. Texas Health Science Center at San Antonio, US

Recently, it was observed that nanostructured zirconium oxide, ZrO2, powder exhibits enhanced performance in many applications. We report the polyol route for the synthesis of nanocrystalline ZrO2 powder, and its characterization by TG/DTA, FTIR, XRD [...]

Preparation of Carbon Coated lithium manganese phosphate nano rods by modified polyol process

Ramesh Kumar P., Venkateswarlu M., Satyanarayanaa N., Pondicherry University, IN

Preparation of Carbon Coated lithium manganese phosphate nano rods by modified polyol process. Ramesh Kumar. Pa, M. Venkateswarlub, N. Satyanarayanaa* a Department of Physics, Pondicherry University, Puducherry - 605 014, India. b HBL Power systems [...]

Synthesis of Dy2O3 nanocrystalline powder using Acrylamide assisted combustion route

Vijayakumar M., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Nanocrystalline Dy2O3 powder was synthesized using arrylamde assisted combustion process. The prepared nano crystalline Dy2O3 powder was characterized through XRD, FTIR and SEM-EDX elemental mapping measurements.

Synthesis and Characterization of Co-Zn Ferrite Nanocrystals for Magnetocaloric Applications

Urcia-Romero S., Renteria B., Gutiérrez G., University of Puerto Rico, PR

Cobalt ferrite (CoFe2O4) is known for its high coercivity, chemical stability and high sensitivity of its Curie temperature (TC) with Zn-doping. A ferrofluid bearing this type of ferrite nanocrystals could be then considered good candidate [...]

Effect of Rare Earth Doping on Magnetic Properties of Cobalt Ferrite Nanocrystals

Cedeño-Mattei Y., Uwakweh O.N.C., Osorio-Cantillo C., University of Puerto Rico-Mayagüez, PR

Cobalt ferrite (CoFe2O4) is a highly anisotropic magnetic material due to the magnetocrystalline anisotropy contribution from Co2+. The addition of foreign cations of different oxidation states, substituting Co2+ or Fe3+, can lead to an atomic [...]

Flame Synthesis and Coating of Nanostructured Particles in One Step

Teleki A., Buesser B., Heine M., Krumeich F., Akhtar M.K., Pratsinis S.E., ETH Zürich, CH

Coating of flame-made nanostructured particles has been achieved in one step by a scalable aerosol process. Rutile TiO2 particles made by flame spray pyrolysis (FSP) were coated in a single step with SiO2 layers in [...]

Colored nanoparticles:composition and application to protein fibres and hair

Gomes J., Sampaio S., Maia F., University of Minho, PT

The coloration of hair is usually done with dyes that need harsh post treatments with products such as ammonia, so as to have durability. In this work, we have developed nanoparticles (medium range 200 nm), [...]