Controllable Synthesis of One‐Dimensional MoO3/MoS2 Hybrid Composites with their Enhanced Efficient Electromagnetic Wave Absorption Properties. Issue 2 (22nd February 2019)

• Record Type: Journal Article
• Authors: Li, Chao‐Qin; Shen, Xun; Ding, Ruo‐Cheng; Wang, Guang‐Sheng
• Is Part Of: ChemPlusChem. Volume 84:Issue 2(2019)
• Page Start: 226
• Page End: 232
• Publication Date: 2019-02-22
• Subjects: hydrothermal synthesis -- molybdenum oxide -- molybdenum disulfide -- microwave absorption -- nanocomposites; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cplu.201800599
• Languages: English
• ISSNs: 2192-6506

Abstract

Abstract: One‐dimensional MoO3 /MoS2 hybrid composites were synthesized by hydrothermal synthesis, and flexible MoO3 /MoS2 /PVDF nanocomposites could be prepared in a controlled fashion by combining the MoO3 /MoS2 composites with polyvinylidene fluoride (PVDF) matrix. The MoO3 /MoS2 /PVDF hybrids with a low filler content (20 wt %) exhibited distinct microwave absorption properties in the range of 2–18 GHz. The minimum reflection loss can reach −38.5 dB at 8.7 GHz, and the reflection loss was less than −10 dB in the frequency range from 3.03–11.02 GHz with an absorber thickness of 2.0–5.0 mm. The MoO3 /MoS2 /PVDF nanocomposites exhibited better absorption properties than pure MoO3 and MoS2 . The possible microwave absorption mechanism was also discussed in detail. Abstract : Hot off the press : MoO3 /MoS2 /PVDF nanocomposites were fabricated by a sample hot press process. With a low filler loading of 20 wt %, the minimum reflection loss reaches −38.5 dB at 8.7 GHz at a thickness of 1.9 mm. The effective bandwidth (reflection loss was less than −10 dB) covers the frequency range from 3.03 to 11.02 GHz with an absorber thickness of 2.0–5.0 mm. The enhanced mechanism of the composites was explained in detail.