Process of converting human hair into hollow carbon filament for electrochemical capacitor

Materia

article

Guilherme Charles Blanco¹  Manuella Gobbo de Castro Munhoz¹  Aline Castilho Rodrigues¹  Andrés Cuña²  Ana Claudia Pina²  Jossano Saldanha Marcuzzo³  Mauricio Ribeiro Baldan¹ 

[1] Instituto Nacional de Pesquisas Espaciais;Universidad de la República;JMHP

关键词: Residue;    Human hair;    Felt;    Carbon filament;    Supercapacitor;   

DOI  :  10.1590/S1517-707620210002.1264

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

Carbon material is the largest material used as electrode on advanced energy storage devices. The modern lifestyle requires more energy, consequently, more smart energy use and efficient devices are needed. The constant evolution of materials technologies looking for green material and renewable raw material, that have minimal impact on the environment, is one of the most important subjects studied in recent years. The scientific and industry community are paying more attention to new forms of carbon such as nanotubes, graphene, and activated carbon fiber. The purpose of this work is to convert human hair into a hollow carbon filament to be used as a supercapacitor electrode. The human hair needs 3 stages to be converted into carbon filament: textile manufacture, oxidation, and carbonization. The electrochemical behavior was analyzed in a three-electrode electrochemical cell system with 2 M of H2SO4 electrolyte medium. The behavior of the electrode was characterized electrochemically by galvanostatic charge/discharge curves, cyclic voltammetry, and electrochemical impedance spectroscopy, showing 163 F g-1 of a maximum value of specific capacitance.

【 授权许可】

CC BY