CAJ | 학술논문

在由机械研磨2 h的 Al 粉经超声波作用下发生水解反应、干燥、焙烧后制备 Al2 O3的过程中,用蔗糖、研磨13 h 的 Zn 粉和 Ag＋分别作为辅助剂制得具有高比表面积的γ-Al2 O3,并考察改性后对γ-Al2 O3织构的影响。采用X射线衍射仪(XRD)、场发射扫描电子显微镜(SEM)和比表面测定(BET)等技术对介孔纳米γ-Al2 O3样品进行表征。结果表明,γ-Al2 O3不但具有高的比表面积,而且孔径分布较为集中。通过改变蔗糖的用量、Zn 粉纳米颗粒和 Ag＋,在一定程度上对γ-Al2 O3的比表面积和孔结构等进行调控。
재유궤계연마2 h적 Al 분경초성파작용하발생수해반응、간조、배소후제비 Al2 O3적과정중,용자당、연마13 h 적 Zn 분화 Ag＋분별작위보조제제득구유고비표면적적γ-Al2 O3,병고찰개성후대γ-Al2 O3직구적영향。채용X사선연사의(XRD)、장발사소묘전자현미경(SEM)화비표면측정(BET)등기술대개공납미γ-Al2 O3양품진행표정。결과표명,γ-Al2 O3불단구유고적비표면적,이차공경분포교위집중。통과개변자당적용량、Zn 분납미과립화 Ag＋,재일정정도상대γ-Al2 O3적비표면적화공결구등진행조공。
Mesoporous nanostucturalγ-Al2 O3 was prepared from aluminum nanoparticles with sucrose,Zn pow-der grinded and Ag+ respectively as auxiliary agent by precipitation with the aid of ultrasonic dispersion,dr-ying,calcination.Textural Properties of the modificationγ-Al2 O3 was explored.Theγ-Al2 O3 were characterized by XRD,SEM and BET.The result indicated that,a novel and simple method using sucrose Zn powder grinded and Ag+ as assistant agent was developed to prepareγ-Al2 O3 with high surface area and narrow pore size distri-bution.