碳化温度对植物生物质制备电子材料的影响及其影响机理  

Effect of carbonization temperature on preparation of electronic materials from plant biomass and its mechanism

作　　者：王冬阳 王强[1] 庞田田 丁宁 WANG Dongyang;WANG Qiang;PANG Tiantian;DING Ning(College of Electronic Information and Artificial Intelligence,Shaanxi University of Science&Technology,Xi’an 710021,China)

机构地区：[1]陕西科技大学电子信息与人工智能学院,陕西西安710021

出　　处：《现代电子技术》2023年第6期149-153,共5页Modern Electronics Technique

摘　　要：我国拥有丰富的植物生物质资源,但并未得到充分利用。植物生物质的碳化产物在电子材料方面具有应用潜力,是实现植物生物质资源充分和有效利用的潜在方法。基于此,文中总结和分析碳化温度对植物生物质碳化产物的微观结构和化学组成的影响,并进一步阐述微观结构和化学组成的变化对植物生物质材料高温碳化制备不同电子材料的影响及影响机理。研究得出:随着碳化温度的升高,碳化产物的比表面积会先增大后减小,比表面积的变化影响产物内部的反应位点数,进而影响其作为电极材料时的比容量、倍率性能以及循环稳定性;且随着温度的升高,产物内的杂质元素以及化学基团明显减少或消失,结构堆积得更紧密且结晶度提高,会出现更大尺寸的石墨微晶,这有利于提升其作为导电材料时的导电性能。China has abundant plant biomass resources,but they have not been fully utilized.The carbonization products of plant biomass have application potential in electronic materials,and are potential methods to realize the full and effective utilization of plant biomass resources.On this basis,the influence of carbonization temperature on the microstructure and chemical composition of plant biomass carbonization products are summarized and analyzed,and the influence and mechanism of the change of microstructure and chemical composition on the preparation of different electronic materials from plant biomass materials by high⁃temperature carbonization are further expounded.The results show that with the increase of carbonization temperature,the specific surface area of carbonization products will first increase and then decrease.The change of specific surface area will affect the number of reaction sites in the products,and then affect the specific capacity,magnification performance and cycle stability of the products as electrode materials.And with the increase of temperature,the impurity elements and chemical groups in the product will obviously decrease or disappear,the structure will be stacked more closely and the crystallinity will be improved,and the graphite microcrystals with larger size will appear,which is conducive to improving its conductivity as a conductive material.

关 键 词：碳化温度 植物生物质 碳化产物 微观结构 化学组成 电子材料 影响机理 

分 类 号：TN919-34[电子电信—通信与信息系统] TP311[电子电信—信息与通信工程]