| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1614570 | Journal of Alloys and Compounds | 2013 | 5 Pages |
Abstract
A novel La-containing hierarchical aluminosilicate (La-HA) was synthesized from zeolite Y precursors by pH-adjusting method. XRF showed that La-HA possessed a high La and Al loading (with SiO2/La2O3 molar ratio of 76.1, and SiO2/Al2O3 molar ratio of 29.5). TEM analysis indicated that La-HA displayed the ordered hexagonal arrays of uniform mesopores. N2 adsorption–desorption demonstrated that the pore size and wall thickness of La-HA were greater than those of Al-HA. Diffuse reflectance UV–visible spectroscopy demonstrated that La3+ was incorporated in the framework of the calcined materials. Such aluminosilicates demonstrated superior catalytic performance in heavy oil catalytic cracking.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Hongtao Liu, Jiujiang Wang, Wei Feng, Chunyan Xu,