Exfoliation and Defect Control of Two-Dimensional Few-Layer MXene Ti3C2Tx for Electromagnetic Interference Shielding Coatings

2020 ◽  
Vol 12 (44) ◽  
pp. 49737-49747 ◽  
Author(s):  
Krishnamoorthy Rajavel ◽  
Xuecheng Yu ◽  
Pengli Zhu ◽  
Yougen Hu ◽  
Rong Sun ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Two Dimensional ◽  
Electromagnetic Interference Shielding ◽  
Defect Control

The Role of Two-Dimensional Materials in Electromagnetic Interference Shielding

2021 ◽  
pp. 1254-1270
Author(s):  
Rafael Vargas-Bernal
Keyword(s):  
Electromagnetic Interference ◽  
Transition Metal Dichalcogenides ◽  
Environmental Stability ◽  
Two Dimensional ◽  
Shielding Effectiveness ◽  
Electromagnetic Interference Shielding ◽  
Two Dimensional Materials ◽  
Metal Dichalcogenides ◽  
Materials Used ◽  
The Impact

Commonly, metallic materials are used in practical ways to increase the shielding effectiveness (SE) through an appropriately designed assembly process. Unfortunately, the high density of devices that require it and the poor environmental stability of metals have impeded their massive use. In addition, for applications in the automotive, aerospace, and electronics industries, materials with light weight and good chemical stability are also required. The purpose of this chapter is to describe the impact that two-dimensional materials (or 2D materials) are having on the development of materials used for electromagnetic interference shielding, particularly the impulse of materials such as graphene, MXenes, transition metal dichalcogenides (TMDs), and phosphorene. The advances in the last decade are analyzed and alternatives are proposed that will come in the next decades. The shielding mechanisms presented by the two-dimensional materials are analyzed in detail and the specific applications in which these materials can be used are presented.

scholarly journals Development of Multi-Functional Graphene Polymer Composites Having Electromagnetic Interference Shielding and De-Icing Properties

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2101 ◽  
Author(s):  
Ji-Hwan Ha ◽  
Soon-Kook Hong ◽  
Jae-Kwan Ryu ◽  
Joonwon Bae ◽  
Sung-Hoon Park
Keyword(s):  
Electromagnetic Interference ◽  
Filler Content ◽  
Electrical Heating ◽  
Two Dimensional ◽  
High Electrical Conductivity ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Graphene Composite ◽  
Heating Performance ◽  
Shielding Properties

We developed a multi-functional graphene composite with electromagnetic interference (EMI) shielding and de-icing properties. Two-dimensional graphene fillers were homogeneously dispersed in a polymer by three-roll milling. The electrical properties and percolation threshold of the graphene composites were measured with various graphene contents. The variation in the EMI shielding properties of the graphene composites with respect to the filler content was measured. The shielding efficiency improved with increasing graphene filler content. Furthermore, we conducted electrical heating tests on the graphene composites. The composites could be heated rapidly to 200 °C by electrical Joule heating with low electric power because of the high electrical conductivity of the composite. Moreover, the composite film was suitable for application in a de-icing unit because of its rapid and homogenous heating performance.

The world of two-dimensional carbides and nitrides (MXenes)

Science ◽  
2021 ◽  
Vol 372 (6547) ◽  
pp. eabf1581
Author(s):  
Armin VahidMohammadi ◽  
Johanna Rosen ◽  
Yury Gogotsi
Keyword(s):  
Solid Solution ◽  
Electromagnetic Interference ◽  
2D Materials ◽  
Two Dimensional ◽  
Electromagnetic Interference Shielding ◽  
Research Directions ◽  
The Family ◽  
The World ◽  
Fundamental Understanding ◽  
Wireless Antennas

A decade after the first report, the family of two-dimensional (2D) carbides and nitrides (MXenes) includes structures with three, five, seven, or nine layers of atoms in an ordered or solid solution form. Dozens of MXene compositions have been produced, resulting in MXenes with mixed surface terminations. MXenes have shown useful and tunable electronic, optical, mechanical, and electrochemical properties, leading to applications ranging from optoelectronics, electromagnetic interference shielding, and wireless antennas to energy storage, catalysis, sensing, and medicine. Here we present a forward-looking review of the field of MXenes. We discuss the challenges to be addressed and outline research directions that will deepen the fundamental understanding of the properties of MXenes and enable their hybridization with other 2D materials in various emerging technologies.

Sign in / Sign up

Export Citation Format

Share Document