摘要
中介孔分子筛ＭＣＭ－４８因其具有三维螺旋孔道结构，且孔径均匀，长程周期性良好及骨架结构稳定等特征而有可能成为有应用前景的工业催化剂［１～１１］．纯硅ＭＣＭ－４８分子筛因无酸性，催化活性极低．若在其ＳｉＯ２骨架形成过程中嵌入具有某种催化活性的过渡金属杂...
A series of MCM48 contained chromium mesoporous molecular sieve, prepared by hydrothermal crystallization and characterized by IR, PyIR, XRD and TGDTA, were used to catalyze the oxidation of octadecanol and eicosanol to the corresponding acid. The evaluation of the catalytic properties indicated that Cr content affected the catalytic oxidation activity. The catalyst with 5%Cr gave the highest yield of octadecanoic acid and eicosanic acid. Depending on the amount Lewis acid sites in the samples, the reaction products were monitored by using IR technique, and the obtained results were consistent with that of chemical analysis.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第6期954-956,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
吉林省科学技术委员会资助
