Related Experiment Video
Updated: Feb 8, 2026

Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
Published on: March 22, 2016
Synthesis of Carbon-Encapsulated Iron and Iron Nitride Nanoparticles from Ferrocene Through Reactive Radio-Frequency
Abstract:
In this paper, carbon-encapsulated nanoparticles of iron and iron nitride were synthesized using ferrocene by reactive radio-frequency thermal plasma. The properties of the prepared nano-powders were investigated by TEM, XRD, Raman spectroscopy and VSM. The samples obtained with zero-nitrogen plasma, contains the carbon-encapsulated iron nanoparticles. There cores mainly composed of ferromagnetic α-Fe and paramagnetic γ-Fe, with carbon shell thicknesses of about 5 nm. The samples synthesized by the plasma with varying nitrogen flow rates, mainly consists of iron nitride and oxide having spherical and irregular shape with deteriorated and disappearing carbon shell. Particle size in all samples were 20-90 nm. Synthesized sample at zero-nitrogen condition showed a room-temperature saturation magnetization of 19.65 emu/g, with a coercivity of 375.1 Oe. The sample prepared with optimal nitrogen flow rate had a saturation magnetization of 35.25 emu/g at room temperature, with a coercivity and remanence of 49.1 Oe and 0.56 emu/g, respectively.
Related Concept Videos
The Carbon Cycle
Carbon Skeletons
Synthesis and Decomposition Reactions
Frequency-dependent Selection
Thermal expansion and Thermal stress: Problem Solving
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
Dehydration Synthesis
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...

