Thermal Plasma Synthesis of Nano-Sized Powders

The 2017 Plasma Roadmap: Low temperature plasma science and technology

“…Nonetheless, plasmas containing a dispersed liquid phase in the form of aerosols or droplets also have a long history in thermal plasmas: e.g. analytical techniques using inductively coupled plasma, production of advanced materials in the form of coatings [31,32] or nano-particles [33]. In the emerging coating technology of plasma spraying of liquid feedstock, the material is injected in the form of droplets of suspensions of nano-or micro-sized particles or droplets of chemical solutions.…”

Plasma‐Based Production of Hydrogen from Hydrocarbons

“…Thermal plasmas, normally generated by DC (direct current) arc or inductively coupled RF (radio frequency) discharge, can be described as a high enthalpy flame with extremely high temperature fields (1000-20 000 K) and a wide range of velocity fields from several m per s to supersonic values [8]. Table 7.2 presents the types of thermal plasmas developed for the production of hydrogen from hydrocarbons.…”

“…The use of this technology is therefore not relevant for fuel cell applications, which require an efficient production of hydrogen in terms of energy consumption [7]. The high enthalpy of thermal plasma has been used as the main heat source to decompose hydrocarbons into hydrogen rich gas and solid carbonaceous nano-materials [8]. This technique has turned out to be very effective and clean, without emission of greenhouse gases and other pollutants, as compared to conventional processes.…”

Synthesis and characterization of spherical amorphous alumo-silicate nanoparticles using RF thermal plasma method

“…It makes high-quality and highperformance materials and material processing techniques possible [1,2]. Moreover, the recent publications clearly showed that this synthesis method could be easily scaled up [3][4][5]. Plasma, considered the fourth state of matter, consists of a mixture of electrons, ions and neutral species, but is electrically neutral.…”