摘要
固体超强酸是近年来研制开发出的一类新型催化材料,其克服了传统液体酸催化剂易腐蚀设备、污染环境、副反应多、产物选择性低等缺点。尤其是近年来纳米技术的应用,使得纳米级固体超强酸的研究颇受人们的青睐。
In order to increase the separation of the nanometer solid superacid from liquid product,the nanometer solid superacid SO42-/TiO2-Fe3O4catalysts were prepared in this study.The transmission electron microscopy（TEM）,X-ray diffraction spectra （XRD）,infrared spectroscopy （IR） were used to characterize the structural characterization of catalyst.The performance of the catalyst was studied by the isomerization reaction of α-pinene.The conditions of preparing catalysts were obtained as follows,the impregnation of sulfuric acid concentration is 0.5mol/L,calcinations temperature is 400℃,calcinations time is 3 h and the ratio of Ti to Fe is 70：1.The transformation rate of α-pinene is 88.6%,and the selectivity of Camphene is 55.1%.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第11期1401-1404,共4页
Chemical Research and Application
基金
国家自然科学基金(30700632)
云南省自然科学基金(2006C0034Q)资助
关键词
磁性纳米固体超强酸
Α-蒎烯
结构表征
Magnetic nano-solid superacid
α-pinene
Structural characterization
