激光诱导石墨烯及其聚吡咯改性提高微超级电容器电容

IF 0.9 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Physics of the Solid State Pub Date : 2023-01-01 DOI:10.21883/pss.2023.02.55422.529

Mikheev K. G., Syugaev A. V., Zonov R. G., Bulatov D. L., Mikheev G. M.

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引用次数: 1

摘要

利用连续波CO2激光聚焦辐射逐行扫描工业聚酰亚胺薄膜近表层热解，制备了激光诱导石墨烯薄膜。拉曼光谱分析表明，合成的薄膜材料在厚度上呈非均匀结构。研究了激光功率和线间距对合成材料在硫酸水溶液中比电容c的影响。结果表明，用聚吡咯(PPy)修饰LIG可以使c增加到60 mF/cm2。利用ppy修饰的LIG薄膜，采用硫酸和聚乙烯醇为基础的凝胶电解质，制作了面积为8 cm2的柔性薄膜微型超级电容器原型，电容为230 mF。关键词:激光诱导石墨烯，电容，聚吡咯，微超级电容器。

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Laser-induced graphene and its modification with polypyrrole for increasing microsupercapacitor capacitance

Laser-induced graphene (LIG) films were synthesized by line-by-line scanning of cw CO2 laser focused radiation on the surface of industrial polyimide film as a result of pyrolysis of its near-surface layer. The structure of the synthesized film material is shown to be heterogeneous in thickness by Raman spectroscopy. The results of the study of the effect of the laser power and the distance between the lines on the specific electrical capacitance c of the synthesized material in aqueous solution of sulfuric acid are presented. It is shown that modification of LIG with polypyrrole (PPy) allows to increase c up to 60 mF/cm2. PPy-modified LIG films were used to make a prototype of a flexible film microsupercapacitor with an area of 8 cm2, using a gel electrolyte based on sulfuric acid and polyvinyl alcohol, with a 230 mF capacitance. Keywords: laser-induced graphene, electric capacitance, polypyrrole, microsupercapacitor.

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来源期刊

Physics of the Solid State 物理-物理：凝聚态物理

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.