CAJ | 학술논문

通过不同温度焙烧蔗糖/氧化铝前驱体的方法制备了炭包覆改性氧化铝（CCA）,对该材料进行水热处理,并采用XRD、TG-DSC对水热处理前、后的样品进行表征。结果表明,焙烧温度在300℃时,产生软焦质炭物种,显著地抑制了Al2O3水合反应;提高焙烧温度可以获得稳定存在的聚合或浓缩的炭物种,但对Al2O3水合的抑制程度降低。
통과불동온도배소자당/양화려전구체적방법제비료탄포복개성양화려（CCA）,대해재료진행수열처리,병채용XRD、TG-DSC대수열처리전、후적양품진행표정。결과표명,배소온도재300℃시,산생연초질탄물충,현저지억제료Al2O3수합반응;제고배소온도가이획득은정존재적취합혹농축적탄물충,단대Al2O3수합적억제정도강저。
Carbon covered y-Al2O3 (CCA) was prepared by calcination of suerose/Al2O3 at different temperatures. The samples before and after hydrothermal treatment were characterized by XRD and TG-DSC. The results indicated that the soft carbon species emerged at the calcination temperature of 300 ℃, and inhabited the hydration of support y-Al2O3. While the stable concentrated carbon species were obtained by improving the calcination temperature, the inhabition of hydration of support y-Al2 O3 decreased.