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屈曲结构可拉伸赝电容器纱线。

Buckling Structured Stretchable Pseudocapacitor Yarn.

作者信息

Lee Duck Weon, Lee Jung Han, Min Nam Ki, Jin Joon-Hyung

机构信息

Department of Ray H. Baughman Lab, Jiangnan graphene research institute, No.6 XiangYun Road, Wujin Economical Development Zone, Jiangsu, 213149, China.

Nanomedicinal research laboratory, Inha university school of medicine, Jeongserk Bldg.A, Seohae-daero 366, Jung-gu, Incheon, 22332, Korea.

出版信息

Sci Rep. 2017 Sep 20;7(1):12005. doi: 10.1038/s41598-017-12375-7.

DOI:10.1038/s41598-017-12375-7
PMID:28931933
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5607238/
Abstract

Cable-type stretchable electrochemical pseudocapacitors based on multi-walled carbon nanotube (MWCNT) sheets and two different metal oxide nanopowders (NP), i.e., MnO and RuO are developed using a newly-devised dry painting method to mechanically fix the NP to the elastic rubber-based MWCNT electrode substrate, resulting in a porous buckling structured pseudocapacitor yarn. Highly stretchable stylene-ethylene/butylene-stylene (SEBS) is used as the supporting elastomeric core for wrapping with the MWCNT sheets and the electroactive NP. The dry painting can successfully deposit NP on the soft SEBS surface, which is normally an unfavorable substrate for coating alien materials. The resulting yarn-type pseudocapacitor, composed of eight-layered MWCNT sheets, three-layered RuO, and two-layered MnO, showing a diameter of approximately 400 μm with a porous buckling structure, records a specific capacitance of 25 F g. After being stretched by 200% in strain with no sacrifice of the porous buckling structure, the cable-type stretchable electrochemical pseudocapacitor yarn retains its electrical capacity, and is potentially applicable to energy storage devices for wearable electronics.

摘要

基于多壁碳纳米管（MWCNT）片材以及两种不同金属氧化物纳米粉末（NP），即MnO和RuO，采用新设计的干涂法开发出电缆型可拉伸电化学赝电容器，以将NP机械固定到基于弹性橡胶的MWCNT电极基板上，从而得到一种多孔屈曲结构的赝电容器纱线。高拉伸性的苯乙烯-乙烯/丁烯-苯乙烯共聚物（SEBS）用作支撑弹性体芯，用于包裹MWCNT片材和电活性NP。干涂法能够成功地将NP沉积在柔软的SEBS表面上，而该表面通常是不利于涂覆外来材料的基底。所得的纱线型赝电容器由八层MWCNT片材、三层RuO和两层MnO组成，呈现出具有多孔屈曲结构、直径约为400μm的形态，其比电容为25 F g。在应变拉伸200%而不牺牲多孔屈曲结构的情况下，电缆型可拉伸电化学赝电容器纱线保留其电容，并且潜在地适用于可穿戴电子产品的能量存储装置。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/a6b3dbc4e527/41598_2017_12375_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/7b7a93a4a32f/41598_2017_12375_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/6ea6f14d0cd1/41598_2017_12375_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/d17fd2224714/41598_2017_12375_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/c77a020ebf2a/41598_2017_12375_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/457330466658/41598_2017_12375_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/a6b3dbc4e527/41598_2017_12375_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/7b7a93a4a32f/41598_2017_12375_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/6ea6f14d0cd1/41598_2017_12375_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/d17fd2224714/41598_2017_12375_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/c77a020ebf2a/41598_2017_12375_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/457330466658/41598_2017_12375_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e021/5607238/a6b3dbc4e527/41598_2017_12375_Fig6_HTML.jpg

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