硅酸盐学报2018，Vol.46Issue(3)：315-321,7.DOI:10.14062/j.issn.0454-5648.2018.03.01
MXene(Ti3C2)的制备及其吸波性能
Fabrication of MXene (Ti3C2) and its Microwave Absorbing Properties
摘要
Abstract
According to the principle that hydrofluoric acid (HF) selectively etches Al atoms layer in Ti3AlC2, the yield of MXene is calculated based on Al ions concentrations in the filter liquor, which is measured by ICP-OES. In this paper, four kinds of Ti3C2 (MXene) with a high yield were prepared by controlling HF concentration, temperature and holding time. The phase composition and microstructure were examined by X-ray diffraction and scanning electron microscopy. The reflection loss of MXene was calculated after the complex relative permittivity and permeability were measured by a microwave network analyzer. The high purity MXenes (40％ HF group) in a wax matrix absorbs microwaves with the frequency in the range from 2 to 13GHz, for sample H1 and H2, when the sample thickness is 3.5mm, the lowest reflection coefficients are -7.5 and -6dB at 2.8 and 2.4GHz; while the MXenes (10％ HF group)/wax composites are in the range from 5 to 18GHz, for sample L1 and L2, when the sample thickness is 2 mm, the lowest reflection coefficients are -35 and -16dB at 13.5 and 14.5GHz.关键词
碳化铝钛/碳化物/氮化物/腐蚀/吸波Key words
titanium aluminum carbide/carbide/nitrides/corrosion/microwave absorbing分类
通用工业技术引用本文复制引用
耿欣,温广武,杨思宇,黄小萧,闫旭,吴赟..MXene(Ti3C2)的制备及其吸波性能[J].硅酸盐学报,2018,46(3):315-321,7.基金项目
国家自然科学基金青年基金(51602075)资助. （51602075）
