Journal ArticleDOI
Understanding the mechanism of aluminium nanoparticle oxidation
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TLDR
In this article, the authors measured the size resolved reactivity of nanoaluminium by single-particle mass spectrometry, to which they added transmission electron microscope (TEM) and an on-line density measurement.Abstract:
Aluminium nanoparticles have gained importance in the last decade because of their increased reactivity as compared with traditional micron-sized particle. The physics of burning of aluminium nanoparticle is expected to be different than that of micron-sized particles, and the current article is motivated by these differences. We have previously measured the size resolved reactivity of nanoaluminium by single-particle mass spectrometry, to which we now add transmission electron microscope (TEM) and an on-line density measurement. The latter two studies revealed the presence of hollow particles following oxidation of nanoaluminium and indicating the significance of diffusion of aluminium in the overall process. Based on experimental evidence, we believe that aluminium nanoparticle oxidation occurs in two regimes. Prior to melting of aluminium slow oxidation occurs through the diffusion of oxygen through the aluminium oxide shell. Above the melting point, we transition to a fast oxidation regime whereby bot...read more
Citations
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Metal-based reactive nanomaterials
TL;DR: A review of metal-based reactive nanomaterials can be found in this paper, where some potential directions for the future research are discussed and some potential application areas are explored.
Journal ArticleDOI
Metal particle combustion and nanotechnology
TL;DR: A brief review of the classifications of metal combustion based on thermodynamic considerations and the different types of combustion regimes of metal particles (diffusion vs. kinetic control) is presented in this article.
Journal ArticleDOI
Selective laser melting (SLM) of AlSi12Mg lattice structures
Martin Leary,Maciej Mazur,Joe Elambasseril,Matthew McMillan,Thomas Chirent,Ying Ying Sun,Ma Qian,Mark Alan Easton,Milan Brandt +8 more
TL;DR: In this paper, the authors provide an experimental investigation of the mechanical properties of SLM AlSi12Mg lattice structures for optimised process parameters as well as the manufacturability of lattice strut elements for a series of build inclinations and strut diameters.
Journal ArticleDOI
Metal-based nanoenergetic materials: Synthesis, properties, and applications
TL;DR: A comprehensive review of the advances made over the past few decades in the areas of synthesis, properties, and applications of metal-based energetic nanomaterials is provided in this paper.
Journal ArticleDOI
Broadband Hot Electron Collection for Solar Water Splitting with Plasmonic Titanium Nitride
Alberto Naldoni,Urcan Guler,Zhuoxian Wang,Marcello Marelli,Francesco Malara,Xiangeng Meng,Lucas V. Besteiro,Alexander O. Govorov,Alexander V. Kildishev,Alexandra Boltasseva,Vladimir M. Shalaev +10 more
TL;DR: In this article, it was shown that transition metal nitrides enable plasmonic devices with enhanced performance for solar energy conversion, which can inject into TiO2 twice as many hot electrons as Au nanoparticles.
References
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Book
Chemical Reaction Engineering
TL;DR: An overview of Chemical Reaction Engineering is presented, followed by an introduction to Reactor Design, and a discussion of the Dispersion Model.
Journal ArticleDOI
Formation of hollow nanocrystals through the nanoscale Kirkendall effect
Yadong Yin,Robert M. Rioux,Can K. Erdonmez,Steven Hughes,Gabor A. Somorjai,A. Paul Alivisatos +5 more
TL;DR: A simple extension of the process yielded platinum–cobalt oxide yolk-shell nanostructures, which may serve as nanoscale reactors in catalytic applications, and provides a general route to the synthesis of hollow nanostructureures of a large number of compounds.
Journal Article
Formation of hollow nanocrystals through the nanoscale kirkendall effect
Yadong Yin,Robert M. Rioux,Can K. Erdonmez,Steven Hughes,Gabor A. Somorjai,A. Paul Alivisatos +5 more
TL;DR: Alivisatos et al. as mentioned in this paper demonstrate that hollow nanocrystals can be synthesized through a mechanism analogous to the Kirkendall Effect, in which pores form due to the difference in diffusion rates between two components in a diffusion couple.
Journal ArticleDOI
Aerosol classification by electric mobility: apparatus, theory, and applications
E.O. Knutson,Kenneth T. Whitby +1 more
TL;DR: An improved version of the Hewitt (differential) electric mobility analyzer was developed and its classifying characteristics were determined theoretically in this article, where the central mobility of the classified aerosol was found to be (qc + qm)/4πΛV, where qc and qm are the clean air and main outlet flows, respectively, and Λ is a geometric factor, and the center rod voltage.