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Wire‐Shaped and Membrane‐Free Fuel Cell Based on Biscrolled Carbon Nanotube Yarn
Author(s) -
Zhou Xiaoshuang,
Zheng Xianhong,
Xu Jiang,
Dai Shengping,
Wang Xi,
Hu Xinghao,
Qiu Yiping,
Yuan Ningyi,
Ding Jianning
Publication year - 2019
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201900122
Subject(s) - materials science , anode , proton exchange membrane fuel cell , carbon nanotube , cathode , fabrication , electrode , electrolyte , nanotechnology , composite material , power density , chemical engineering , fuel cells , electrical engineering , power (physics) , engineering , chemistry , medicine , alternative medicine , physics , pathology , quantum mechanics
Flexible fuel cells show great prospects as a power source in wearable devices due to their high efficiency and good reliability. Herein, a wire‐shaped fuel cell is designed by achieving two main breakthroughs; one is the fabrication of the catalyst‐loaded current collector for wire‐shaped electrodes, and the other is the membrane‐free configuration design according to a new fuel reaction mechanism. Successfully, a flexible wire‐shaped membraneless fuel cell ( W FC) is fabricated for the first time by integrating a biscrolled carbon nanotube (CNT)@ Fe 3 [Co (CN) 6 ] 2 cathode and CNT@ nickel particles anode into a silicone tube with a liquid H 2 O 2 fuel electrolyte. The resulting flexible W FC shows an open‐circuit potential (OCP) of 0.88 V and a power density of 6.28 mW cm −2 . Moreover, it can retain the structural integrity and stability under repeated bending deformation. Hopefully, this article will pave the way for the next‐generation reliable wearable electronics.