Synthesis of high-aspect ratio Fe3O4 nanostructures via magnetic field guidance: Toward enhanced microwave absorption performance

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-05-02 DOI:10.1063/5.0265489

Wuyi Chai, Wei Ding, Mianke Chen, Yikang Qiang, Yiqing Yang, Ruikai Liu, Ganhong Zheng, Zhigao Sheng

引用次数: 0

Abstract

One-dimensional materials have extensive applications in the field of functional materials, but the preparation of one-dimensional materials with large aspect ratio remains a challenge. Herein, we demonstrate a single-step magnetic field-assisted hydrothermal approach for synthesizing single-crystalline Fe3O4 nanochains with an exceptional aspect ratio of ∼540:1. Systematic investigations reveal that the magnetic field critically regulates the morphology, crystallinity, growth mode, and magnetic properties of Fe3O4, and its excellent microwave absorption performance. The minimum reflection loss for the 1 T single-crystal chain structure reached −61.94 dB at 8.65 GHz (thickness: 3.56 mm), which is approximately 3.4 times greater than that of the zero-field polycrystalline samples. This research provides a feasible solution for low-cost and large-scale synthesis of 1D Fe3O4 nanostructure with high aspect ratio and offers a practical path for optimizing the performance of microwave absorbing materials.

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磁场引导合成高纵横比Fe3O4纳米结构：增强微波吸收性能

一维材料在功能材料领域有着广泛的应用，但大纵横比一维材料的制备仍然是一个挑战。在这里，我们展示了一种单步磁场辅助水热方法来合成单晶Fe3O4纳米链，其长径比为540:1。系统研究表明，磁场对Fe3O4的形貌、结晶度、生长方式和磁性能有着重要的调控作用，并对Fe3O4优异的微波吸收性能有着重要的影响。在8.65 GHz（厚度为3.56 mm）下，1 T单晶链结构的最小反射损耗达到- 61.94 dB，是零场多晶样品的3.4倍左右。本研究为低成本、大规模合成高展弦比一维Fe3O4纳米结构提供了可行的解决方案，并为优化吸波材料的性能提供了切实可行的途径。

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

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.