Knittable energy storing fiber with high volumetric performance made from predominantly MXene nanosheets,Journal of Materials Chemistry A

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Knittable energy storing fiber with high volumetric performance made from predominantly MXene nanosheets
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2017-11-01 00:00:00 , DOI: 10.1039/c7ta08355f
Shayan Seyedin _{1,

2,

3,

4} , Elliard Roswell S. Yanza _{1,

2,

3,

4} , Joselito M. Razal _{1,

2,

3,

4}

Affiliation

A new member of the 2D family called “MXene” offers metallic conductivity and outstanding electrochemical properties that are important for developing fiber supercapacitors. To date, however, scalable approaches for preparing MXene-based fibres have been relatively unexplored. Here we demonstrate that a graphene oxide liquid crystal-assisted fiber spinning approach can be used to produce novel fibers that are predominantly MXene by weight (∼88 wt%). These MXene fibers exhibit high volumetric capacitance (∼341 F cm⁻³) and electrical conductivity (∼72.3 S cm⁻¹) and excellent strength and flexibility that allow knitting of MXene-based textile prototypes. The supercapacitor device made from MXene fibers displays excellent stability after 20 000 cycles and delivers maximum energy and power densities of ∼5.1 mW h cm⁻³ and ∼1700 mW cm⁻³, respectively. This work introduces a new class of fiber supercapacitors that offer great potential for realizing flexible power sources for miniaturized electronic gadgets and wearable technologies.

中文翻译：

主要由MXene纳米片制成的具有高容积性能的可编织储能纤维

2D系列的一个新成员称为“ MXene”，它具有金属导电性和出色的电化学性能，这对于开发光纤超级电容器非常重要。然而，迄今为止，相对未开发用于制备基于MXene的纤维的可扩展方法。在这里，我们证明了可以使用氧化石墨烯液晶辅助纤维纺丝方法来生产新颖的纤维，这些纤维主要是按重量计（约88 wt％）的MXene。这些MXene纤维具有高的体积电容（〜341 F cm ^-3）和导电性（〜72.3 S cm ^-1）以及出色的强度和柔韧性，可用于编织基于MXene的纺织品原型。由MXene纤维制成的超级电容器器件在2万次循环后显示出出色的稳定性，并分别提供约5.1 mW h cm ^-3和约1700 mW cm ^-3的最大能量和功率密度。这项工作介绍了新型的光纤超级电容器，它们为实现用于小型电子设备和可穿戴技术的柔性电源提供了巨大的潜力。

更新日期：2017-11-14

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