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  

Preparation,microstructure,and energy storage performance of biomass carbon from corn bract

作　　者：周晓亮 马林[2] 杨一君 余宇 张致远[1] 罗马 曾祥昇 严铮洸[2] ZHOU Xiaoiang;MA Lin;YANG Yijun;YU Yu;ZHANG Zhiyuan;LUO Ma;ZENG Xiangsheng;YAN Zhengguang(School of Physical Science and Engineering,Beijing Jiaotong University,Beijing 100044;Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China)

机构地区：[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

出　　处：《电子显微学报》2024年第3期339-345,共7页Journal of Chinese Electron Microscopy Society

基　　金：中央高校基本科研业务费(No.2019JBM071).

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。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.

关 键 词：生物质 细胞结构 电子显微学 储能 

分 类 号：TM911[电气工程—电力电子与电力传动] Q246[生物学—细胞生物学] TG115[金属学及工艺—物理冶金]