{"title":"回收与再利用:利用废纸板制作固态超级电容器装置用碳微管","authors":"Rachel Angeline Lenin , Mohanraj Kumar , Cheng-Di Dong , Ching-Lung Chen , Jih-Hsing Chang","doi":"10.1016/j.jtice.2024.105561","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p>The unending consumption of depleting fossil fuels has paved the way for renewable and circular technologies, and enormous effort has been put into garbage management to use them as carbon precursors.</p></div><div><h3>Methods</h3><p>This study reports the first-ever supercapacitive behavior of carbon microtubes synthesized from a well-known waste material, packaging cardboard, through thermal conversion, which has been introduced as electrode material without any chemical treatment as a green energy storage device.</p></div><div><h3>Significant findings</h3><p>FESEM and TEM imagining show the carbon microtube structure. The pore architectures, surface area, and chemical characteristics have been easily modified by adjusting the activation temperature. The thermal stability of the carbon microtube was tested by TGA analysis. Upon increasing the carbonization temperature from 400 °C to 900 °C, the specific surface area of the carbon material increased, whereas the contents of nitrogen and oxygen decreased notably, significantly impacting the electrochemical properties of the carbon-based supercapacitors. Excellent charge transfer characteristics of the thermally activated carbon microtube have been studied through EIS and CV analysis. The CV investigations show the electric double-layer capacitor (EDLC) for the 900CB electrode. Galvanostatic charge-discharge (GCD) calculations give a specific capacitance of 127 F g<sup>−1</sup> at 1 A g<sup>−1</sup>. The constructed asymmetric solid-state capacitor shows an outstanding stability of 85% for 10,000 cycles at a current density of 1 A g<sup>−1,</sup> unveiling a phenomenal power density of 125 W kg<sup>−1</sup> and an energy density of 36 Wh kg<sup>−1</sup>.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Recycle and Reuse: Fabrication of carbon microtube derived from waste cardboard for solid-state supercapacitor device\",\"authors\":\"Rachel Angeline Lenin , Mohanraj Kumar , Cheng-Di Dong , Ching-Lung Chen , Jih-Hsing Chang\",\"doi\":\"10.1016/j.jtice.2024.105561\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><p>The unending consumption of depleting fossil fuels has paved the way for renewable and circular technologies, and enormous effort has been put into garbage management to use them as carbon precursors.</p></div><div><h3>Methods</h3><p>This study reports the first-ever supercapacitive behavior of carbon microtubes synthesized from a well-known waste material, packaging cardboard, through thermal conversion, which has been introduced as electrode material without any chemical treatment as a green energy storage device.</p></div><div><h3>Significant findings</h3><p>FESEM and TEM imagining show the carbon microtube structure. 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引用次数: 0
摘要
背景日益枯竭的化石燃料的无休止消耗为可再生和循环技术铺平了道路,人们在垃圾管理方面做出了巨大努力,将其用作碳前体。通过调节活化温度,可以轻松改变孔隙结构、表面积和化学特性。通过 TGA 分析检测了碳微管的热稳定性。当碳化温度从 400 °C 提高到 900 °C 时,碳材料的比表面积增加,而氮和氧的含量明显降低,从而显著影响了碳基超级电容器的电化学特性。通过 EIS 和 CV 分析研究了热激活碳微管的优异电荷转移特性。CV 研究显示 900CB 电极具有双电层电容器 (EDLC)。电静电荷-放电(GCD)计算得出,在 1 A g-1 的条件下,比电容为 127 F g-1。所构建的非对称固态电容器在 1 A g-1 的电流密度下,10,000 次循环的稳定性高达 85%,显示出 125 W kg-1 的惊人功率密度和 36 Wh kg-1 的能量密度。
Recycle and Reuse: Fabrication of carbon microtube derived from waste cardboard for solid-state supercapacitor device
Background
The unending consumption of depleting fossil fuels has paved the way for renewable and circular technologies, and enormous effort has been put into garbage management to use them as carbon precursors.
Methods
This study reports the first-ever supercapacitive behavior of carbon microtubes synthesized from a well-known waste material, packaging cardboard, through thermal conversion, which has been introduced as electrode material without any chemical treatment as a green energy storage device.
Significant findings
FESEM and TEM imagining show the carbon microtube structure. The pore architectures, surface area, and chemical characteristics have been easily modified by adjusting the activation temperature. The thermal stability of the carbon microtube was tested by TGA analysis. Upon increasing the carbonization temperature from 400 °C to 900 °C, the specific surface area of the carbon material increased, whereas the contents of nitrogen and oxygen decreased notably, significantly impacting the electrochemical properties of the carbon-based supercapacitors. Excellent charge transfer characteristics of the thermally activated carbon microtube have been studied through EIS and CV analysis. The CV investigations show the electric double-layer capacitor (EDLC) for the 900CB electrode. Galvanostatic charge-discharge (GCD) calculations give a specific capacitance of 127 F g−1 at 1 A g−1. The constructed asymmetric solid-state capacitor shows an outstanding stability of 85% for 10,000 cycles at a current density of 1 A g−1, unveiling a phenomenal power density of 125 W kg−1 and an energy density of 36 Wh kg−1.
期刊介绍:
Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.