摘要
采用一步热解法,使用常见的玉米果穗苞叶为原料,制备了保留玉米苞叶组织细胞结构的生物质碳膜,采用扫描电镜,透射电镜等技术手段对样品的形貌和结构进行了表征,样品表面有明显的维管束以及大量的气孔的存在.不添加任何导电剂和添加剂,热解碳膜直接作为工作电极使用,在100 mA·g-1的电流密度下,200次循环后仍能获得218 mAh·g-1的可逆比容量.本工作在生物质废弃物利用,以及储能材料开发等方面有参考价值.
Abstract
One-pot pyrolysis method was utilized to fabricate biochar membranes with cell structures from corn bracts.SEM and TEM techniques were used to study the microstructure and morphology of samples.Leaf veins and stomata were observed in these samples.Biochar membranes were used as working electrodes without any binder or conductive additives,a reversible specific capacity of 218 mAh·g-1 was maintained after 200 cycles at a current density of 100 mA·g-1.This work provides a reference for the utilization of biomass waste and the development of energy storage materials.
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