摘要
以氧化钒(V_2O_5)粉末、纯度30%的过氧化氢(H_2O_2)、乙醇为原料,采用溶胶-凝胶法和溶剂替换工艺,在常压条件下制备了高比表面积V_2O_5气凝胶纳米材料。借助扫描电子显微镜、透射电镜、红外光谱、拉曼光谱、X射线衍射、比表面积以及热重分析测试技术对V_2O_5气凝胶的形貌及微观结构进行了系统表征。测试结果表明:经100℃热处理后的V_2O_5气凝胶纳米材料由直径20nm左右的纳米棒组成,呈三维网状结构,平均孔洞直径约18.7nm,比表面积为395m^2/g。
Vanadium oxide aerogel with high-surface area was prepared by sol-gel process used V2O5 power,H2O2 and ethanol as the starting materials and dried at ambient pressure.The morphology and microstructure of asprepared samples were characterized and analyzed using SEM,TEM,XRD,FT-IR,Raman,BET and TG-DSC techniques.The results indicated that the resulted aerogels had a nanorods-like tridimensional network structure,the average pore diameter was about 18.7 nm,the specific surface area was 395 m^2/g.
作者
崔朝军
段林波
孙兴川
Cui Chaojun;Duan Linbo;Sun Xingchuan(School of Physics Science and Engineering,Tongji University,Shanghai 200092;School of Mathematics and Physics,Anyang Institute of Technology,Anyang 455000)
出处
《化工新型材料》
CAS
CSCD
北大核心
2018年第7期182-184,190,共4页
New Chemical Materials
基金
国家自然科学基金项目(51472182)
安阳市科技攻关项目(2015045038)
国家级大学生创新创业训练计划项目(201611330020)
安阳工学院校基金(YJJ2018002)
关键词
氧化钒
气凝胶
常压干燥
高比表面积
vanadium oxide
aerogel
ambient pressure drying
high surface area
