Silicon Carbonitride Nanopowders by Laser Pyrolysis for Plastic Nanocomposites

Dez, R.; Porterat, D.; Boime, Nathalie Herlin

doi:10.4028/www.scientific.net/kem.264-268.25

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Laser pyrolysis is based on a resonant interaction between a laser beam and a gaseous or liquid precursor (Cannon et al, 1982;Dez et al, 2004;Herlin et al, 1996;Muller et al, 2003), where energy is transferred by a multiphoton process between the emission line of the laser and at least one absorption band of the precursor. An aerosol generator produces droplets of the precursor which are carried by an inert gas (usually argon or nitrogen) into the laser beam.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of tungsten oxide nanostructures by laser pyrolysis

Mwakikunga

Forbes

Sideras‐Haddad

et al. 2008

IJNP

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Since the proposal to synthesise materials by laser assisted pyrolysis in the 1970s, and its practical realisation in 1982, a number of researchers have used this method in obtaining nano-powders from liquid droplets. This study revisits this technique by introducing a new aspect in that it considers obtaining thin films rather than powders. A full experimental arrangement, including laser optimisation, optical layout and materials processing procedures is described. Synthesis of WO 3 nanostructures by this method is reported for the first time, with the mean diameter and length determined to be 51 nm and 6.8 µm, respectively. A possible mechanism for production of such nano structures is proposed owing to the selective dissociation of the O-C bonds in the tungsten ethoxide precursor liquid which resonate with the 10.6 µm emission wavelength of the CO 2 laser employed.

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Section: Introductionmentioning

confidence: 99%

Synthesis of tungsten oxide nanostructures by laser pyrolysis

Mwakikunga

Forbes

Sideras‐Haddad

et al. 2008

IJNP

View full text Add to dashboard Cite

show abstract

Laser pyrolysis in papers and patents

2021

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This paper presents a critical review of laser pyrolysis. Although this technology is almost 60 years old, in literature many researchers, both from academia and industry, are still developing and improving it. On the contrary industrial applications are struggling to take off, if not in very restricted areas, although the technology has undoubted advantages that justify future development. The aim of this work consists in analysing a representative pool of scientific papers (230) and patents (121), from the last 20 years, to have an overview about the evolution of the method and try to understand the efforts spent to improve this technology effectively in academia and in industry. This study is important to provide a complete review about the argument, still missing in the literature. The objective is to provide an overview sufficiently broad and representative in the sources and to capture all the main ways in which laser pyrolysis has been used and with what distribution. The main focuses of the study are the analyses of the functions carried out by laser technologies, the application fields, and the types of used laser (i.e. models, power and fluence). Among the main results, the study showed that the main use of laser pyrolysis is to produce nanoparticles and coatings, the main materials worked by laser pyrolysis are silicon and carbon dioxide and the main searched properties in the products of laser pyrolysis are catalysts activity and electrical conductivity. CO2 lasers are the most used and the have high versatility compared to others. In conclusion, the study showed that laser pyrolysis is a consolidated technology within its main application fields (nanoparticles and coatings) for several years. Within this context, the technology has been developed on very different sizes and processes, obtaining a very wide range of results. Finally, these results may also have stimulated new areas of experimentation that emerged mainly in recent years and which concern biomedical applications, additive manufacturing, and waste disposal. Graphical abstract

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Silicon Carbonitride Nanopowders by Laser Pyrolysis for Plastic Nanocomposites

Cited by 2 publications

References 7 publications

Synthesis of tungsten oxide nanostructures by laser pyrolysis

Synthesis of tungsten oxide nanostructures by laser pyrolysis

Laser pyrolysis in papers and patents

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