CAJ | 학술논문

采用共沉淀水热合成锌铝类水滑石（ ZnAl-HTLcs）和锌铝铈三元类水滑石（ ZnAlCe-HTLcs）。并利用XRD对不同条件下合成产物进行物相分析。实验结果表明，在M2+：M3+=2，Ce3+：Al3+=0.25，pH=5.8~6.5下，进行多种离子共沉淀，均能合成结构单一的ZnAl-HTLcs 和 ZnAlCe-HTLcs。并以此为前驱体经一定温度焙烧后得到复合金属氧化物催化剂，研究了催化剂在乙酸戊醇酯化反应中的应用。当M2+：M3+为2，Ce3+：Al3+为0.25条件下，催化剂在实验条件下均具有较好的催化活性，其中经500℃下焙烧的催化剂，乙酸的转化率最高可达78.7%。
채용공침정수열합성자려류수활석（ ZnAl-HTLcs）화자려시삼원류수활석（ ZnAlCe-HTLcs）。병이용XRD대불동조건하합성산물진행물상분석。실험결과표명，재M2+：M3+=2，Ce3+：Al3+=0.25，pH=5.8~6.5하，진행다충리자공침정，균능합성결구단일적ZnAl-HTLcs 화 ZnAlCe-HTLcs。병이차위전구체경일정온도배소후득도복합금속양화물최화제，연구료최화제재을산무순지화반응중적응용。당M2+：M3+위2，Ce3+：Al3+위0.25조건하，최화제재실험조건하균구유교호적최화활성，기중경500℃하배소적최화제，을산적전화솔최고가체78.7%。
Zn-Al Hydrotalcite-like( ZnAl-HTLcs)and Zn-Al-Ce hydrotalcite-like( ZnAlCe-HTLcs)were synthesized by co-precipitation and hydrothermal synthesis methods,and measured by XRD. The results show that:under the M2+:M3+ =2,Ce3+:Al3+ =0. 25,pH = 5. 8 ~6. 5 ,a single synthetic ZnAl-HTLcs and ZnAlCe-HTLcs can be obtained. As a precursor after the calcination temperature by a certain complex metal oxide catalysts have been studied in the acetic acid catalyst for esterification of N-pentanol in the application of the detailed effects of catalyst composition and reaction conditions on catalytic activi-ty. When molar ratio of M2+:M3+ is 2 and molar ratio of Ce3+:Al3+ is 0. 25,catalyst at 500 ℃ calcina-tion have a better catalytic activity in acetic acid up to a maximum conversion rate of 78 . 7%.