Insights into combustion mechanisms of variable aluminum-based iron oxide/-hydroxide nanothermites

Huebner Jakob; Klaumuenzer Martin; Comet Marc; Martin Cedric; Vidal Loic; Schaefer Michael; Kryschi Carola; Spitzer Denis

首页> 外文期刊>Combustion and Flame >Insights into combustion mechanisms of variable aluminum-based iron oxide/-hydroxide nanothermites

【24h】

Insights into combustion mechanisms of variable aluminum-based iron oxide/-hydroxide nanothermites

机译：洞察可变的铝基氧化铁/氢氧化物纳米热电偶的燃烧机理

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Aluminum/iron oxide/-hydroxide nanothermite compounds were prepared and investigated in detail. The fast and facile synthesis was undertaken via a coprecipitation route of iron precursor species (sulfate, chloride) in presence of aluminum nanoparticles with an average diameter of 100 nm, terminated by an amorphous Al2O3 passivation layer. The only difference during synthesis is temperature, leading to a non-magnetic (at 20 degrees C) and magnetic (at 50 degrees C) nanothermite. HR-TEM and XRPD analysis reveal a predominantly amorphous iron oxide/-hydroxide nanoscaled matrix surrounding the aluminum nanoparticles. Moreover, aluminum nanoparticles and nanoscaled iron oxide/-hydroxide build up a hierarchical Al/Al2O3/FexOyHz, core/shell/shell structure in the case of the magnetic nanothermite. The non-magnetic nanothermite system lacks this significant structure. Finally, as-synthesized systems highly differ in reactivity, which is explained by their individual structural discrepancies. Values of flame propagation velocities and distinct threshold values of sensitivity to electrostatic discharge align with comparable reported aluminum/iron oxide aero- and xerogels in the literature. (C) 2017 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

机译：制备并详细研究了铝/氧化铁/氢氧化钠纳米热化合物。通过铁前体物质（硫酸盐，氯化物）的共沉淀途径，在平均直径为100 nm的铝纳米粒子存在下，以无定形的Al2O3钝化层为终止，进行了快速简便的合成。合成过程中的唯一区别是温度，从而导致非磁性（在20摄氏度时）和磁性（在50摄氏度时）纳米热晶。 HR-TEM和XRPD分析显示，包围铝纳米颗粒的主要是非晶态的氧化铁/氢氧化物纳米级基质。此外，在磁性纳米铝热剂的情况下，铝纳米颗粒和纳米级氧化铁/氢氧根构成了分层的Al / Al2O3 / FexOyHz，核/壳/壳结构。非磁性纳米热晶体系缺乏这种重要的结构。最后，合成后的系统在反应性上存在很大差异，这可以通过它们各自的结构差异来解释。火焰传播速度的值和对静电放电的敏感性的不同阈值与文献中可比较的报道的铝/氧化铁气凝胶和干凝胶一致。（C）2017燃烧研究所。由Elsevier Inc.出版。保留所有权利。

著录项

来源
《Combustion and Flame》 |2017年第10期|186-194|共9页
作者
Huebner Jakob; Klaumuenzer Martin; Comet Marc; Martin Cedric; Vidal Loic; Schaefer Michael; Kryschi Carola; Spitzer Denis;
展开▼
作者单位

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

Univ Haute Alsace, Inst Mat Sci, Rue Jean Starcky 15, F-68057 Mulhouse, France;

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

Friedrich Alexander Univ Erlangen Nuremberg, Inst Phys Chem 1, Dept Chem & Pharm, Egerlandstr 3, D-91058 Erlangen, Germany;

French German Res Inst St Louis, UNISTRA UMR 3208, CNRS, Nanomat Syst Sollicitat Extremes NS3E,ISL, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Al-nanoparticles; Iron oxide/-hydroxide nanoscaled matrix; Coprecipitation; Nanothermite; Surface activation; Thermite reactivity;

机译：铝纳米颗粒;氧化铁/氢氧化物纳米级基体;共沉淀;钠铁矿;表面活化;铝铁矿反应性;

相似文献

外文文献
中文文献
专利

1. Comparison of the Effects of Phenyl Dichlorophosphate Modified and Unmodified β-Iron(III) Oxide Hydroxide on the Thermal, Combustion, and Mechanical Properties of Ethylene–Vinyl Acetate/Magnesium Hydroxide Composites [J] . Lei Wang, Jing Zhan, Lei Song, Journal of Applied Polymer Science . 2014,第8期

机译：苯基二氯磷酸酯改性和未改性的β-氧化铁（III）氢氧化物对乙烯-乙酸乙烯酯/氢氧化镁复合材料的热，燃烧和力学性能的影响比较
2. Insights into Redox Reactions and Ionic Transfers in Nickel/Iron Layered Double Hydroxide in Potassium Hydroxide [J] . Duquesne Elise, Betelu Stephanie, Bazin Cyrille, The journal of physical chemistry, C. Nanomaterials and interfaces . 2020,第5期

机译：在氢氧化钾中镍/铁层双氢氧化物中氧化还原反应和离子转移的见解
3. Arsenic adsorption by iron-aluminium hydroxide coated onto macroporous supports: Insights from X-ray absorption spectroscopy and comparison with granular ferric hydroxides [J] . Kumar Prashanth Suresh, Quiroga Flores Roxana, Sjostedt Carin, Journal of Hazardous Materials . 2016,第JANa25期

机译：涂覆在大孔载体上的氢氧化铁铝对砷的吸附：X射线吸收光谱的见解以及与颗粒状氢氧化铁的比较
4. Arsenic adsorption by iron-aluminium hydroxide coated onto macroporous supports: Insights from X-ray absorption spectroscopy and comparison with granular ferric hydroxides [C] . P. Suresh Kumar, R. Quiroga Flores, L. ?nnby, International Congress on Arsenic in the Environment . 2016

机译：铁 - 氢氧化铝涂覆在大孔支撑件上的砷吸附：X射线吸收光谱和颗粒状铁氧化物的比较洞察力
5. New insights into bacteria-related geochemical processes: Co-adsorption, temperature dependence of protonation, and effects on iron-hydroxide precipitation. [D] . Wightman, Peter Gary. 2002

机译：细菌相关地球化学过程的新见解：共吸附，质子化的温度依赖性以及对氢氧化铁沉淀的影响。
6. Insights into the Synthesis of Layered Double Hydroxide (LDH) Nanoparticles: Part 2. Formation Mechanisms of LDH [O] . Xiaodi Sun, Sandwip K. Dey -1

机译：层状双氢氧化物（LDH）纳米粒子的合成的见解：第2部分。LDH的形成机理
7. Adsorption Mechanisms of Trivalent Gold onto Iron Oxy- Hydroxides: From the Molecular Scale to the Model [O] . Benjamin Cancès, Marc Benedetti, François Farges, 2006

机译：三价金在氢氧化铁上的吸附机理：从分子尺度到模型

Insights into combustion mechanisms of variable aluminum-based iron oxide/-hydroxide nanothermites

摘要

著录项

相似文献

相关主题

期刊订阅