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引用次数: 0
摘要
激光诱导石墨烯(LIG)作为一种电极材料已引起广泛关注。然而,由于石墨烯的导电性和电荷存储特性有限,它在许多应用中通常表现出有限的电化学性能。在此,我们提出了一种利用激光直写技术原位制备柔性 Au/LIG/PI 层状杂化材料的简单而环保的策略。成功实现了杂化材料从疏水性到超亲水性的转变。在激光再照射过程中,激光功率为 6.0 W 时,制备的 Au/LIG/PI 层状杂化材料的接触角为 0°。表征结果表明,在多孔 LIG 骨架上形成了均匀分布的连续金层。这种独特的微观结构所产生的超亲水性大大提高了基于 Au/LIG/PI 混合材料设计和制造的微型超级电容器(MSC)的电化学性能。同时,由于采用了 PI 基底,这种 MSC 表现出了极佳的柔韧性。原位制备超亲水性金/LIG/PI 层状杂化材料为改善基于 LIG 的 MSC 的性能提供了一种策略,从而提高了其应用潜力。
In Situ Laser Direct Writing of Graphene-Based Layered Hybrid Materials with Superhydrophilicity.
Laser-induced graphene (LIG) has attracted extensive attention as an electrode material. However, it usually exhibits limited electrochemical performance in many applications due to the limited electrical conductivity and charge storage properties. Herein, we proposed a simple and environmentally friendly strategy for in situ preparation of flexible Au/LIG/PI layered hybrid materials using laser direct writing. The transformation from hydrophobic to superhydrophilic of hybrid materials was successfully achieved. At a laser power of 6.0 W during laser reirradiation, the contact angle of the prepared Au/LIG/PI layered hybrid material was 0°. Characterizations confirmed a formed continuous Au layer covered on the porous LIG skeleton with a uniform distribution. The superhydrophilicity resulting from this unique microstructure greatly enhanced the electrochemical performance of the microsupercapacitors (MSCs) designed and fabricated based on Au/LIG/PI hybrid materials. Meanwhile, this MSC demonstrated excellent flexibility due to the PI substrate. The in situ preparation of superhydrophilic Au/LIG/PI layered hybrid materials provides a strategy for improving the performance of LIG-based MSCs, thereby enhancing their application potential.
期刊介绍:
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.