Two-Dimensional Nanosheets-Based Soft Electro-Chemo-Mechanical Actuators: Recent Advances in Design, Construction,...

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• Soft electro-chemo-mechanical actuators are crucial for biomimetic technologies, wearable electronics, and microelectromechanical systems.
• Two-dimensional (2D) nanosheets offer unique properties for actuator electrodes, including ordered microstructures and tunable electrochemical activities.

Purpose of the Study:

• To review recent advances in 2D nanosheet-based electrodes for electro-chemo-mechanical actuators.
• To discuss strategies for enhancing ionic transport, charge storage, and actuation performance.
• To highlight innovative applications and future perspectives in the field.

Main Methods:

• Focuses on reviewing key 2D materials: graphene, MXenes, graphitic carbon nitride, molybdenum disulfide, black phosphorus, and graphdiyne.
• Discusses electrode design strategies: microstructural architecture, active-site regulation, and channel construction.
• Emphasizes advanced structures providing ordered ionic pathways for high actuation speed and strain.

Main Results:

• 2D nanosheets significantly promote ion-induced motion for macrodeformation in actuators.
• Designed electrode architectures achieve high ionic kinetic transport, charge storage, and electrochemical-mechanical performance.
• Advanced structures facilitate high actuation speed and strain through ordered ionic pathways.

Conclusions:

• 2D nanosheets are prime candidates for high-performance electro-chemo-mechanical actuator electrodes.
• Innovative applications in biomimetic robots and smart devices are emerging.
• Further research is needed to address current challenges and unlock next-generation actuator designs.