摘要
以四水合硝酸铟为金属盐、1,3,5-三(4-羧基苯基)苯(BTB)为配体、冰醋酸为模板剂,利用金属离子(In^(3+))与BTB的配位自组装特性,采用溶剂热法制备了非穿插型金属有机骨架材料(MOF)(In-BTB)。通过XRD、TG、N_(2)吸附-脱附等温线对其进行了表征,探究了In-BTB对甲烷的吸附量和工作能力。结果表明,In-BTB具有较高的比表面积(2487 m^(2)/g)和永久孔隙结构,孔体积为1.07 cm^(3)/g。在273 K、8 MPa条件下,In-BTB对甲烷的质量工作能力为397 cm^(3)/g(0.29 g/g)。该材料还表现出良好的可重复性,在273 K、8 MPa条件下原位测试3次后,甲烷工作能力仍能保持在380 cm^(3)/g以上。
Non-interpenetrating metal-organic framework(MOF)(In-BTB)were prepared by solvothermal method using indium nitrate tetrahydrate as metal salt,1,3,5-tri(4-carboxyphenyl)benzene(BTB)as ligand and acetic acid as template,taking advantage of the self-assembly properties of metal ion(In^(3+))and BTB.The MOF In-BTB was characterized by XRD,TG and N_(2) adsorption-desorption isotherm,and evaluated for its adsorption and storage capacity for methane.The result showed that In-BTB exhibited a high specific surface area of 2487 m^(2)/g and a permanent porous structure with a pore volume of 1.07 cm^(3)/g.The mass working capacity of In-BTB for methane was 397 cm^(3)/g(0.29 g/g)at 273 K and 8 MPa.The In-BTB also showed good repeatability,with the methane working capacity remaining above 380 cm^(3)/g after three in-situ tests at 273 K and 8 MPa.
作者
张玉凤
裴浩楠
樊小青
周洁
刘腾龙
薛东旭
ZHANG Yufeng;PEI Haonan;FAN Xiaoqing;ZHOU Jie;LIU Tenglong;XUE Dongxu(College of Chemical Engineering and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,Shanxi,China;School of Chemistry&Chemical Engineering,Shaanxi Normal University,Xiʹan 710062,Shaanxi,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2024年第5期1008-1013,1021,共7页
Fine Chemicals
基金
国家自然科学基金项目(22301212,21871170)
山西省基础研究计划青年项目(202203021222194)
太原科技大学博士科研启动金项目(20222066)
来晋优秀博士奖励项目(20232061)。
关键词
铟基有机骨架材料
甲烷存储
清洁能源
模板剂
比表面积
功能材料
indium-based organic framework
methane storage
clean energy
template agents
specific surface area
functional materials
