Core@shell and sandwich-like Ti3C2Tx@Ni particles with enhanced electromagnetic interference shielding performance. Issue 21 (1st November 2021)

• Record Type: Journal Article
• Authors: Hu, Shujun; Li, Shibo; Xu, Weimin; Yu, Wenbo; Zhou, Yang
• Is Part Of: Ceramics international. Volume 47:Issue 21(2021)
• Page Start: 29995
• Page End: 30004
• Publication Date: 2021-11-01
• Subjects: Ti3C2Tx MXene -- core@shell and sandwich structure -- Magnetic properties -- Electromagnetic interference shielding; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.07.174
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Novel and highly effective electromagnetic interference (EMI) shielding materials are desirable to attenuate unwanted electromagnetic radiation or interference produced by electrical communication devices. Here, functional Ti3 C2 T x @Ni particles with a core@shell and sandwich like structure were fabricated using the facile electroless plating technique. The core@shell structured Ti3 C2 T x @Ni consists of a Ti3 C2 T x core and a Ni shell. In the core, thin Ni layers are sandwiched in between Ti3 C2 T x flakes. EMI shielding effectiveness (SE) values of Ti3 C2 T x @Ni/wax composites increased with increasing Ti3 C2 T x @Ni content. The average EMI SE value of 60 wt% Ti3 C2 T x @Ni/wax composite was 43.12 dB, increased by 73% as compared with 24.93 dB for the same content of pristine Ti3 C2 T x in wax in the frequency range 2–18 GHz. An average EMI SE of 74.14 dB was achieved in the 80 wt% Ti3 C2 T x @Ni/wax. The enhanced EMI shielding performance should be ascribed to the synergic effect of the absorption loss of the Ti3 C2 T x core and the magnetic loss of the Ni shell and the inner Ni layers.