凝聚
离子液体
材料科学
制作
超级电容器
纳米技术
离子强度
化学工程
电化学
水溶液
工程类
化学
医学
生物化学
替代医学
电极
病理
物理化学
催化作用
作者
Xin Li,Dong Lv,Liqing Ai,Xuejiao Wang,Xiubin Xu,Mengyi Qiang,Gongsheng Huang,Xi Yao
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-05-10
卷期号:18 (20): 12970-12980
标识
DOI:10.1021/acsnano.4c01179
摘要
Ionogels have grabbed significant interest in various applications, from sensors and actuators to wearable electronics and energy storage devices. However, current ionogels suffer from low strength and poor ionic conductivity, limiting their performance in practical applications. Here, inspired by the mechanical reinforcement of natural biomacromolecules through noncovalent aggregates, a strategy is proposed to construct nanofibril-based ionogels through complex coacervation-induced assembly. Cellulose nanofibrils (CNFs) can bundle together with poly(ionic liquid) (PIL) to form a superstrong nanofibrous network, in which the ionic liquid (IL) can be retained to form ionogels with high liquid inclusion and ionic conductivity. The strength of the CNF-PIL-IL ionogels can be tuned by the IL content over a wide range of up to 78 MPa. The optical transparency, high strength, and hygroscopicity enabled them to be promising candidates in moist-electricity generation and applications such as energy harvesting windows and wearable power generators. In addition, the ionogels are degradable and the ionogel-based generators can be recycled through dehydration. Our strategy suggests perspectives for the fabrication of high-strength and multifunctional ionogels for sustainable applications.
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