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A Self-supported Graphene/Carbon Nanotube Hollow Fiber for Integrated Energy Conversion and Storage by Liu, Kai; Chen, Zilin; Lv, Tian; Yao, Yao; Li, Ning; Li, Huili; Chen, Tao is a Engineering article available to read on EtoBox.

What is A Self-supported Graphene/Carbon Nanotube Hollow Fiber for Integrated Energy Conversion and Storage about?

## Abstract Wearable fiber-shaped integrated energy conversion and storage devices have attracted increasing attention, but it remains a big challenge to achieve a common fiber electrode for both energy conversion and storage with high performance. Here, we grow aligned carbon nanotubes (CNTs) array on continuous graphene (G) tube, and their seamlessly connected structure provides the obtained G/CNTs composite fiber with a unique self-supported hollow structure. Taking advantage of the hollow structure, other active materials (e.g., polyaniline, PANI) could be easily functionalized on both inner and outer surfaces of the tube, and the obtained G/CNTs/PANI composite hollow fibers achieve a high mass loading (90%) of PANI. The G/CNTs/PANI composite hollow fibers can not only be used for high-performance fiber-shaped supercapacitor with large specific capacitance of 472 mF cm^−2^, but also can replace platinum wire to build fiber-shaped dye-sensitized solar cell (DSSC) with a high power conversion efficiency of 4.20%. As desired, the integrated device of DSSC and supercapacitor with the G/CNTs/PANI composite hollow fiber used as the common electrode exhibits a total power conversion a

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Author

Liu, Kai; Chen, Zilin; Lv, Tian; Yao, Yao; Li, Ning; Li, Huili; Chen, Tao

Publisher

Nano-Micro Letters; Springer-Verlag; Open Access Science Online; Fayetteville Ark.: OAHOST; Springer Science and Business Media LLC; Springer Nature (ISSN 2311-6706)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)