Agro‐industrial co‐products rich in lignocellulose, for example cassava petiole (CP) waste, have high potential as sources of porous carbon materials, alongside other impressive advantages, including ease of acquisition, abundance and availability, renewability and low cost. This work shows the successful treatment of mesoporous carbon with rod‐like structure derived from agro‐industrial CP waste carbonized and physically activated by direct one‐stage integrated pyrolysis using a zinc chloride (ZnCl₂) activator agent, in the production of a supercapacitor electrode for energy storage. The ZnCl₂ was tested at varying concentrations, including 0.5, 0.7 and 0.9 mol L^–1. The surface morphology, chemical content, surface area and porous size distribution were evaluated to determine the physical properties of activated carbon, and a cyclic voltammetry method was used to assess the electrochemical characteristics using a two‐electrode system in 1 mol L^–1 H₂SO₄ as an electrolyte.

中文翻译：

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来源于农用木薯叶柄废料的棒状介孔碳，用于超级电容器

富含木素纤维素的农用工业副产品，例如木薯叶柄（CP）废料，具有作为多孔碳材料来源的巨大潜力，此外还有其他令人印象深刻的优势，包括易于获取，丰富和可利用性，可再生性和低成本。这项工作表明，成功地处理了杆状结构的介孔碳，该杆状结​​构是通过使用氯化锌（ZnCl ₂）活化剂直接进行一级整体热解而碳化并物理活化的，从农业工业CP废料衍生而来的，并在超级电容器电极的生产中进行了物理活化用于能量存储。ZnCl ₂在不同浓度下进行了测试，包括0.5、0.7和0.9 mol L ^–1。对表面形态，化学含量，表面积和孔尺寸分布进行了评估，以确定活性炭的物理性质，并使用循环伏安法通过双电极系统在1 mol L ^–1 H _2中评估电化学特性。SO ₄作为电解质。