Synthesis of aluminium nanoparticles by arc plasma spray under atmospheric pressure
- 1 January 2013
- journal article
- research article
- Published by Elsevier BV in Materials Science and Engineering B
- Vol. 178 (1), 22-30
- https://doi.org/10.1016/j.mseb.2012.10.004
Abstract
The present study addresses the feasibility to synthesize aluminium nanoparticles (NPs) from micron-sized aluminium powder with the use of a customized atmospheric plasma spraying (APS) technique. Using APS, nanoparticle synthesis can be achieved via rapid melting and vaporization of the initial micrometric particles and their subsequent re-nucleation. A custom mantle system was designed and developed with the aid of relevant simplified CFD simulations. The mantle provided the necessary inert environment (argon), at ambient pressure, in order to avoid any oxidation of the metal during plasma spraying while promoted rapid quenching of the gasified metal. The particles formed were collected with the aid of a quartz filter downstream of the plasma flame and the production rate achieved was 2 g min−1. Ex situ post-characterization of the particles via X-ray diffraction, specific surface area measurement (BET), transmission electron microscopy (TEM) coupled with energy dispersive spectrometry (EDS) and thermogravimetric analysis (TGA) under air revealed that the powders obtained primarily comprised of monocrystalline metallic aluminium nanoparticles of almost spherical shape. The NPs possessed a 2–5 nm oxide coating layer. By regulating the conditions inside the mantle, a variety of different size distributions were obtained.Keywords
This publication has 35 references indexed in Scilit:
- Organic thin-film transistor memory with Ag floating-gateMicroelectronic Engineering, 2011
- Determination of Oxidation Characteristics and Studies on the Feasibility of Metallic Nanoparticles Combustion Under ICE-Like ConditionsSAE International Journal of Fuels and Lubricants, 2011
- The rechargeable aluminum-ion batteryChemical Communications, 2011
- ZnO nanoparticles prepared by electrical arc discharge method in waterMaterials Chemistry and Physics, 2009
- Nano-crystalline P/M aluminium for automotive applicationsJournal of Physics: Conference Series, 2009
- Metal particle combustion and nanotechnologyProceedings of the Combustion Institute, 2009
- Plasma Synthesis of NanoparticlesKONA Powder and Particle Journal, 2007
- Nano-aluminum as energetic material for rocket propellantsMaterials Science and Engineering: C, 2006
- Formation of Uniform CuO Nanorods by Spontaneous Aggregation: Selective Synthesis of CuO, Cu2O, and Cu Nanoparticles by a Solid−Liquid Phase Arc Discharge ProcessThe Journal of Physical Chemistry B, 2005
- Superconductivity in aluminum nanoparticlesPhysica C: Superconductivity and its Applications, 2004