生物质前体多孔碳材料的致孔机理研究  

Research of the pore-forming mechanism based on biomass precursors porous carbon materials

作　　者：王晴 张凤 姚宇佳 岳群峰[1] WANG Qing;ZHANG Feng;YAO Yu-jia;YUE Qun-feng(College of Chemistry and Chemical Engineering,Harbin Normal University,Harbin 150025,China)

机构地区：[1]哈尔滨师范大学化学化工学院,黑龙江哈尔滨150025

出　　处：《化学工程师》2022年第5期79-82,98,共5页Chemical Engineer

基　　金：国家自然科学基金资助项目(No.21771047)“金属有机骨架复合薄膜材料电荷转移机理的研究及其污染物分子的电化学检测”。

摘　　要：以生物质百香果皮为碳前体,选择了 H_(3)PO_(4)、KOH 和 ZnCl_(2)为活化致孔剂制备了几种多孔碳。研究结果表明,不同试剂活化得到的多孔碳具有不同的孔结构和比表面积。N_(2)吸附脱附数据表明,用 H_(3)PO_(4)、KOH和 ZnCl_(2)活化分别得到介孔、微孔和微介孔等不同孔结构的多孔碳,推测的致孔机理表明,热处理过程中活化剂与前体发生不同的作用机制,从而导致样品产生不同孔结构。该研究提供了一种简单易行的可控制备生物质多孔碳的方法,同时也为生物质废弃物的再利用提供了技术路线。H_(3)PO_(4),KOH and ZnCl_(2)as activated pore -forming agents were used to prepare several kinds of biomass porous carbons.The results showed that the porous carbon activated by different reagents had different pore structures and specific surface area.The speculated pore-forming mechanism showed that the activation agent and precursor had different action mechanisms during heat treatment,resulting in different pore structures.So this study is great significance for the reuse of biomass waste and controllable preparation of biomass porous carbon fields.

关 键 词：生物质 多孔碳 化学活化 致孔机理 

分 类 号：O647.3[理学—物理化学]