Electrostatically Self-Assembled Nanocomposite Reactive Microspheres

被引：77

作者：

Malchi, Jonathan Y. ^{[1
]}

Foley, Timothy J. ^{[2
]}

Yetter, Richard A. ^{[1
]}

机构：

[1] Penn State Univ, University Pk, PA 16802 USA

[2] Los Alamos Natl Lab, Los Alamos, NM USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2009年 / 1卷 / 11期

关键词：

electrostatic self-assembly; nanoenergetics; thermites; microspheres; BINARY NANOPARTICLE SUPERLATTICES; ORGANIZED MOLECULAR ASSEMBLIES; OXIDIZED ALUMINUM SURFACE; NORMAL-ALKANOIC ACIDS; MONOLAYERS; ALKANETHIOLS; CRYSTALS; AL/MOO3; AU;

D O I：

10.1021/am900521w

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanocomposite reactive microspheres with diameters of similar to 1-5 mu m were created via electrostatic self-assembly of aluminum and cupric oxide nanoparticles. The ability to utilize this novel approach of bottom-up assembly to create these reactive materials allows for the potential for a more intimate mixture between the two nanoreactants and, thus, an overall more energetic combustion process. Experiments with the self-assembled material demonstrate the ability to achieve ignition and sustain a combustion wave in rectangular microchannels, which does not occur with material having similar amounts of organics mixed via the traditional sonication method.

引用

页码：2420 / 2423

页数：4

共 21 条

[1] SPONTANEOUSLY ORGANIZED MOLECULAR ASSEMBLIES .1. FORMATION, DYNAMICS, AND PHYSICAL-PROPERTIES OF NORMAL-ALKANOIC ACIDS ADSORBED FROM SOLUTION ON AN OXIDIZED ALUMINUM SURFACE [J].