Thermite Reactions within Liquid Gallium/Iron Oxide Supraparticles Triggered Via Induction Heating

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Nano Materials Pub Date : 2025-05-09 DOI:10.1021/acsanm.5c0117110.1021/acsanm.5c01171

Theodor Raczka, Philipp Groppe, Katrin Hurle, Michael S. Moritz, Christian Papp, Karl Mandel and Susanne Wintzheimer*,

引用次数: 0

Abstract

Thermite reactions are well-known for mixtures of aluminum and iron oxide. However, other reactive metals, such as gallium, were not studied in this application, and the use of induction as an external trigger for the thermite reaction has not been established. In this work, supraparticles of gallium and iron oxide nanoparticles were synthesized to combine a low melting point with inductive heating properties. The enabled thermite-like redox reactions generate temperatures up to 900 °C within seconds in an alternating magnetic field, tunable by the material’s gallium content. Induction heating profiles are thus significantly expanded and could be applied for targeted heat-on-demand.

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感应加热触发液态镓/氧化铁超粒子内的铝热剂反应

铝热剂反应是众所周知的铝和铁氧化物的混合物。然而，其他活性金属，如镓，并未在此应用中进行研究，并且尚未确定使用感应作为铝热剂反应的外部触发。在这项工作中，合成了镓和氧化铁纳米颗粒的超粒子，结合了低熔点和感应加热特性。在交变磁场中，类似铝热剂的氧化还原反应在几秒钟内产生高达900°C的温度，可根据材料的镓含量进行调节。感应加热剖面因此显着扩大，可以适用于有针对性的按需加热。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Nano Materials Multiple-

CiteScore

8.30

自引率

3.40%

发文量

1601

期刊介绍： ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.