Fig. 2
From: High-performance graphdiyne-based electrochemical actuators

Assembling and electrochemical properties of the graphdiyne actuator. a Schematic for the assembly procedure of the graphdiyne actuator. Cross-sectional SEM image of the graphdiyne actuator with fine interfacial adhesion, scale bar 10 μm. b Nyquist plot for the device. The inset shows magnified 0–22 ohm region. c CV curves of the devices based on graphdiyne, graphene, and CNT at a scan rate of 100 mV s−1, respectively. d Charge−discharge curves of graphdiyne, graphene, and CNT actuators at the current density of 1 A g−1. e Specific capacitances of actuators as a function of current density