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MoS 2 ‐Based All‐Purpose Fibrous Electrode and Self‐Powering Energy Fiber for Efficient Energy Harvesting and Storage
Author(s) -
Liang Jia,
Zhu Guoyin,
Wang Caixing,
Wang Yanrong,
Zhu Hongfei,
Hu Yi,
Lv Hongling,
Chen Renpeng,
Ma Lianbo,
Chen Tao,
Jin Zhong,
Liu Jie
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201601208
Subject(s) - materials science , supercapacitor , electrode , energy storage , fiber , nanotechnology , energy harvesting , energy conversion efficiency , optoelectronics , dye sensitized solar cell , coaxial , electrochemistry , composite material , energy (signal processing) , telecommunications , computer science , power (physics) , chemistry , physics , statistics , mathematics , quantum mechanics , electrolyte
Here an all‐purpose fibrous electrode based on MoS 2 is demonstrated, which can be employed for versatile energy harvesting and storage applications. In this coaxial electrode, ultrathin MoS 2 nanofilms are grown on TiO 2 nanoparticles coated carbon fiber. The high electrochemical activity of MoS 2 and good conductivity of carbon fiber synergistically lead to the remarkable performances of this novel composite electrode in fibrous dye‐sensitized solar cells (showing a record‐breaking conversion efficiency of 9.5%) and high‐capacity fibrous supercapacitors. Furthermore, a self‐powering energy fiber is fabricated by combining a fibrous dye‐sensitized solar cell and a fibrous supercapacitor into a single device, showing very fast charging capability (charging in 7 s under AM1.5G solar illumination) and an overall photochemical‐electricity energy conversion efficiency as high as 1.8%. In addition, this wire‐shaped electrode can also be used for fibrous Li‐ion batteries and electrocatalytic hydrogen evolution reactions. These applications indicate that the MoS 2 ‐based all‐purpose fibrous electrode has great potential for the construction of high‐performance flexible and wearable energy devices.