TY - JOUR
T1 - An ultralight and thermally conductive Ti3C2Tx MXene-silver nanowire cellular composite film for high-performance electromagnetic interference shielding
AU - Ma, Zhenping
AU - Feng, Hui
AU - Feng, Yongbao
AU - Ding, Xin
AU - Wang, Xianzhen
AU - Wang, Wei
AU - Zhang, Xiaojie
AU - Kong, Shuo
AU - Lan, Xiong
AU - Li, Qiulong
N1 - Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/9/7
Y1 - 2022/9/7
N2 - Lightweight high-performance electromagnetic interference (EMI) shielding materials with excellent thermal conductivity and outstanding EMI shielding performances are highly satisfactory for modern integrated electronic and telecommunication systems in the fields of military, aerospace, smart and wearable electronics, and artificial intelligence. Herein, we prepared a cellular MXene@silver nanowire (Ag NW) composite film by a simple vacuum-assisted filtration process induced by potassium ions and freeze-drying after rapid pre-freezing with liquid nitrogen. The construction of the cellular structure can effectively improve the shielding effectiveness. Upon introducing the Ag NWs in the system, the interconnection networks were constructed for the MXene@Ag NW composite film, which significantly improved the electrical and thermal conductivity, further enhancing EMI shielding performance. The composite film with 80 wt% Ag NWs can deliver a high conductivity of 1245 S cm−1, ultrahigh EMI shielding efficiency (SE) of 81.11 dB in the X-band, and a high thermal conductivity of 26.19 W m−1 K−1. The prepared MXene@Ag NW cellular composite film has the advantages of high shielding efficiency and good thermal conductivity, which has important application value in manufacturing lightweight, high shielding efficiency materials and avoiding heat accumulation of electronic devices.
AB - Lightweight high-performance electromagnetic interference (EMI) shielding materials with excellent thermal conductivity and outstanding EMI shielding performances are highly satisfactory for modern integrated electronic and telecommunication systems in the fields of military, aerospace, smart and wearable electronics, and artificial intelligence. Herein, we prepared a cellular MXene@silver nanowire (Ag NW) composite film by a simple vacuum-assisted filtration process induced by potassium ions and freeze-drying after rapid pre-freezing with liquid nitrogen. The construction of the cellular structure can effectively improve the shielding effectiveness. Upon introducing the Ag NWs in the system, the interconnection networks were constructed for the MXene@Ag NW composite film, which significantly improved the electrical and thermal conductivity, further enhancing EMI shielding performance. The composite film with 80 wt% Ag NWs can deliver a high conductivity of 1245 S cm−1, ultrahigh EMI shielding efficiency (SE) of 81.11 dB in the X-band, and a high thermal conductivity of 26.19 W m−1 K−1. The prepared MXene@Ag NW cellular composite film has the advantages of high shielding efficiency and good thermal conductivity, which has important application value in manufacturing lightweight, high shielding efficiency materials and avoiding heat accumulation of electronic devices.
UR - http://www.scopus.com/inward/record.url?scp=85138780083&partnerID=8YFLogxK
U2 - 10.1039/d2tc02856e
DO - 10.1039/d2tc02856e
M3 - 文章
AN - SCOPUS:85138780083
SN - 2050-7526
VL - 10
SP - 14169
EP - 14179
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 38
ER -