Citation: WANG Shuang, DING Wei, WANG Ding-Cong, ZHAO De-Zhi. Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore[J]. Chinese Journal of Inorganic Chemistry, ;2015, 31(8): 1539-1547. doi: 10.11862/CJIC.2015.214 shu

Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore

1.
1. College of Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, Liaoning 113001, China;
2.
2. Fushun Research Institute of Petroleum and Petrochemicals, Fushun, Liaoning 113001, China;
3.
3. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijng 102249, China

Corresponding author: DING Wei,
Received Date: 14 February 2015
Available Online: 20 May 2015
Fund Project: 中国石油化工集团(总合-JQ1416)资助项目 (总合-JQ1416)中国海洋石油总公司资助项目(No.20140331)。 (No.20140331)

The macropore alumina catalysis material FA-06 was prepared by nano self-assembly technique which has a pore volume of 1.39 cm³·g^-1, a specific surface area of 297 m²·g^-1, most probable pore size of 32.4 nm and a porosity of 81.85%. High concentration pore size distribution of 10~30 nm and 30~60 nm which percentages are 35.61% and 40.88%, respectively. GPC showed that the dispersion and relative molecular weight of RHP are controlled by the amount of PIBSA, which is the formation material of RHP, in order to control the pore sizes. From TEM and SEM, the results showed that the diameters of nano aluminum hydroxide rods are 250~300 nm, and the lengths are 600~800 nm. After calcinating at 550.0℃, the nano alumina rods had the diameter of 150~300 nm, the length of 400~600 nm. XRD results of burned nano self-assembly aluminum hydroxide showed that γ-Al₂O₃ be formed completely from three types of precursor of nano self-assembly aluminum hydroxide by burning process. Combining with data of TG, the γ-Al₂O₃ is formed completely due to the decomposition of pseudoboehmite at temperature of 605.0℃, and the total weight loss reaches 61.88%. Based on the above experimental results, the molecular self-assembly and nano self-assembly formation process of reverse supersoluble micelle, aluminum hydroxide and macropore alumina were simulated. Moreover, the formation mechanism of NSA of nano self-assembly macropore alumina with penetrable pores was presented.
- macromolecule;template;penetrate pore;diffusion;residue
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