Recent progress in energy, environment, and electronic applications of MXene nanomaterials

Abstract

Since the discovery of graphene, two-dimensional (2D) materials have gained wide attention, owing to their appealing properties for various technological applications. Etched from their parent MAX phases, MXene is a...

Ultra-broadband microwave absorption of (Mn0.2Fe0.2Zn1.2)x substituted Co2Y hexaferrites with a self-aligned sheet stacked, highly c-axis oriented and multi-domain structure

“…7(e), (j) and (o) represent the EAB max of RL < −10 dB at a specific thickness, including its lower limit frequency ( f lower ) and upper limit frequency ( f upper ), and therefore EAB max = f upper − f lower . Normally, the impedance matching characteristic, which determines whether the incident EMWs can sufficiently enter the interior of the absorber without being reflected on the surface, is a prerequisite for the absorber to achieve good absorption, as described eqn (13): 54 …”

Advancements in silicon carbide-based supercapacitors: materials, performance, and emerging applications

“…Supercapacitors, also known as electrochemical capacitors or ultracapacitors, represent a class of energy storage devices that bridge the gap between traditional capacitors and batteries. They rely on two primary principles for energy storage: 144,145 (a) Double-layer capacitance . This principle involves the storage of charge at the interface between the electrode and the electrolyte.…”

Flexible/wearable resistive gas sensors based on 2D materials

“…These 2D materials based flexible and wearable gas sensors have great potential to contribute in personal environmental monitoring and healthcare. Table 2, 76,[136][137][138][139] summarizes the advantages and disadvantages of different 2D materials in gas sensing applications. In general, they show lower sensing performance relative to most metal oxides, however their sensing temperatures are generally lower and show a better flexibility.…”