Hollow cube-like CuS derived from Cu2O crystals for the highly efficient elimination of electromagnetic pollution†,New Journal of Chemistry

当前位置： X-MOL 学术 › New J. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Hollow cube-like CuS derived from Cu2O crystals for the highly efficient elimination of electromagnetic pollution†
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-03-15 00:00:00 , DOI: 10.1039/c8nj00488a
Xiaodong Sun _{1,

2,

3,

4} , Xin Yuan _{1,

2,

3,

4} , Xiaopeng Li _{4,

5,

6} , Ling Li _{1,

2,

3,

4} , Qingfeng Song _{4,

7,

8} , Xuliang Lv _{1,

2,

3,

4} , Guangxin Gu _{4,

9,

10} , Mingxu Sui _{1,

2,

3,

4}

Affiliation

In this study, hollow cube-like CuS composites derived from Cu₂O crystals were synthesized via a simple one-step reaction. The formation of hollow cavities can be explained through the Kirkendall-based process. The morphologies and electromagnetic absorption (EA) properties of the CuS were measured and investigated. A sample with 35 wt% hollow CuS loading paraffin-composite achieves an optimal reflection loss (RL) of −63.99 dB at 12.09 GHz under the thickness of 2.25 mm. Simultaneously, the effective EA bandwidth (RL ≤ −10 dB) can be tuned between 4.63 and 18.00 GHz by changing the thickness of the absorber from 1.5 mm to 4.0 mm. The excellent EA performance is attributed to the high dielectric loss, appropriate impedance matching and multiple reflections induced by the unique hollow cube-like structure. Thus the hollow cube-like CuS is expected to be a promising material in approaching for microwave absorption against the electromagnetic pollution.

中文翻译：

由Cu ₂ O晶体衍生的空心立方状CuS ，可有效消除电磁污染†

在这项研究中，由Cu ₂ O晶体衍生的空心立方状CuS复合材料是通过以下方法合成的：一个简单的一步反应。空心腔的形成可以通过基于Kirkendall的过程来解释。对CuS的形貌和电磁吸收（EA）性能进行了测量和研究。具有35 wt％空心CuS负载石蜡复合材料的样品在12.09 GHz厚度为2.25 mm的情况下，最佳反射损耗（RL）为-63.99 dB。同时，通过将吸收器的厚度从1.5 mm更改为4.0 mm，可以在4.63至18.00 GHz之间调整有效EA带宽（RL≤-10 dB）。出色的EA性能归因于高介电损耗，适当的阻抗匹配以及独特的空心立方体状结构引起的多次反射。

更新日期：2018-03-15

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11