期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 23, 页码 26301-26312出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c01841
关键词
MoS2; aerogel; banana leaflike microstructure; porous structure; microwave absorption
资金
- Sichuan Science and Technology Program [2019YJ014]
- Fundamental Research Funds for the Central Universities
- Young Elite Scientists Sponsorship Program by CAST
We describe the design and manufacturing method of a lightweight C-doped MoS2 aerogel with a special regular banana leaflike microstructure used for high-performance micro-wave absorbers. The aerogel precursor was first fabricated by a self-assembly process between alginate (Alg) and ammonium thiomolybdate (ATM), where Alg as a template was assembled with ATM into regular banana leaflike architectures along the ice growth direction during oriented freezing. After pyrolysis at 900 degrees C, the C-doped MoS2 aerogels maintained low densities and porous hierarchal banana leaflike structures, where the banana leaves ranged in diameter from about 2 to 5 mu m with the growth of small branches. Benefitting from these features, the C-doped MoS2 aerogel possessed excellent microwave absorption performance in the frequency range of 2-18 GHz. The minimum reflection loss (RL) reached -43 dB at 5.4 GHz with a matching thickness of 4 mm, and the effective microwave absorption band (RL < -10 dB) reached 4 GHz (14-18 GHz) at a thickness of 1.5 mm. Our findings also provide strategies for designing MoS2 aerogel nanostructures for electronic devices, catalysis, and other potential applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据