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  4. 由沸石纳米粒子自组装制备具有高催化活性中心和水热稳定的新型介孔分子筛材料

催化学报 , 2003, 24(2): 149-158.

由沸石纳米粒子自组装制备具有高催化活性中心和水热稳定的新型介孔分子筛材料

韩宇 1, , 肖丰收 2,

1.吉林大学化学系和无机合成与制备化学国家重点实验室,吉林长春,130023

2.吉林大学化学系和无机合成与制备化学国家重点实验室,吉林长春,130023

基金项目:   国家自然科学基金(20121103)   国家自然科学基金(29825108)  

关键词： 催化材料 , 介孔分子筛 , 水热稳定性 , 酸性 , 催化氧化 , 催化裂化

Catalytically Active and Hydrothermally Stable Mesoporous Materials Assembled from Preformed Nanosized Zeolite Precursors

人们合成了一系列介孔分子筛材料,并发现它们在催化、吸附与分离以及化学组装制备先进材料和分子器件等方面具有很大的潜在应用价值. 但是,介孔分子筛材料相对于微孔沸石分子筛存在着两个致命弱点:较低的水热稳定性和较不活泼的催化活性中心. 这两个弱点大大地影响了介孔分子筛在催化反应中的广泛应用. 本文系统地综述了最近几年利用沸石纳米粒子自组装制备具有高催化活性中心和水热稳定的介孔分子筛材料的研究进展. 这包括利用硅铝沸石纳米粒子自组装制备具有强酸性和水热稳定的新型介孔硅铝分子筛材料, 利用钛硅沸石纳米粒子自组装制备具有高催化氧化活性中心和水热稳定的新型钛硅介孔分子筛材料, 以及利用含有不同杂原子的沸石纳米粒子自组装制备一系列水热稳定的新型介孔分子筛催化材料.

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