玉米苞叶组织细胞结构生物质碳的制备及显微结构的研究
周晓亮，马 林*，杨一君，余 宇，张致远，罗 马，曾祥昇，严铮洸
（1.北京交通大学物理科学与工程学院，北京100044；2. 北京工业大学材料学部，北京100124）
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。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。
关键词 生物质；细胞结构；电子显微学；储能
中图分类号：TM911；Q246；TG115.21+5.3；S216 文献标识码：A doi：10.3969/j.issn.1000-6281.2024.03.010
Preparation, microstructure, and energy storage performance of biomass carbon from corn bract
ZHOU Xiaoliang1, MA Lin2*, YANG Yijun1, YU Yu1, ZHANG Zhiyuan1, LUO Ma1, ZENG Xiangsheng1, YAN Zhengguang2
(1. School of physical science and engineering, Beijing Jiaotong university, Beijing 100044; 2 Faculty of materials and manufacturing, Beijing university of technology, Beijing 100124, China)
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 was maintained after 200 cycles at a current density of 100 mA/g. This work provides a reference for the utilization of biomass waste and the development of energy storage materials.
Keywords biomass; cell structure; electron microscopy; energy storage
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