ABSTRACT

Ionic polymer-Carbon nanotube composite (IPCC) actuators based on black phosphorus (BP)-Nafion composite membranes were fabricated. BP-Nafion composite was used as the ionic matrix with functional carbon nanotube as electrodes. BP presents as a promising material owing to its high charge mobility using in energy storage materials. It was used in Nafion composite improving the electromechanical properties of BP-Nafion composite. Significantly the interaction between BP and lithium ion was strong which restricted the back diffusion of cation during action and thus enhanced the deformation of actuator without back-relaxation. In addition, layer crystal structure of BP protected the inter-lamellar liquid from evaporation thus ensured the durability. The result IPCC actuator exhibited improvement actuation with blocking force of 2 wt.% BP-Nafion composite of 33.6 gf g⁻¹ for 30s under an electrical field of 2 V, 2.7 times that of neat Nafion. Actuation behavior under AC field could be repeatedly played hundreds of cycles without obvious decrease of blocking force for BP-Nafion composite-based IPCC.

摘要

制备了基于黑磷 (BP)-Nafion 复合膜的离子聚合物-碳纳米管复合材料 (IPCC) 致动器。BP-Nafion复合材料作为离子基体，功能性碳纳米管作为电极。由于其在储能材料中的高电荷迁移率，BP 是一种很有前途的材料。用于Nafion复合材料，提高BP-Nafion复合材料的机电性能。值得注意的是，BP 和锂离子之间的相互作用很强，这限制了阳离子在作用过程中的反向扩散，从而增强了致动器的变形而不会产生反向松弛。此外，BP 的层状晶体结构保护了层间液体免受蒸发，从而确保了耐用性。结果 IPCC 致动器表现出改进的致动，阻塞力为 2 wt。^-1在 2 V 的电场下持续 30 秒，是纯 Nafion 的 2.7 倍。基于 BP-Nafion 复合材料的 IPCC，AC 场下的驱动行为可以重复播放数百个循环，而阻塞力没有明显降低。