Role of the Aluminophosphate Gel Aging Stage in Controlling the Morphology and Secondary Pore Structure of AlPO4-11 Molecular Sieves

被引：2
|
作者：
Agliullin, M. R. [1 ]
Kolyagin, Yu G. [2 ]
Faizullin, A., V [1 ]
Meshcheryakova, E. S. [1 ]
Kutepov, B., I [1 ]
机构：
[1] Russian Acad Sci, Ufa Fed Res Ctr, Inst Petrochem & Catalysis, Ufa 450075, Republic Of Bas, Russia
[2] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
来源：
KINETICS AND CATALYSIS | 2022年 / 63卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
zeolites; boehmite; phosphoric acid; gel; aluminophosphate AlPO4-11; crystal morphology; micro-mesoporous materials; CATALYTIC PERFORMANCE; SAPO-11; ZEOLITES; CRYSTALLIZATION; METHANOL;
D O I：
10.1134/S0023158422050019
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of the aging stage on the chemical and phase composition and pore structure characteristics of aluminophosphate gels synthesized using boehmite and phosphoric acid and the products of the subsequent crystallization of the gels into aluminophosphate AlPO4-11 has been studied by XRD, Al-27 and P-31 MAS NMR, SEM, and nitrogen adsorption-desorption. It has been shown that the control of the chemical and phase composition of aluminophosphate gels via varying their aging temperature in a range of 25-120 degrees C makes it possible to synthesize a high phase purity AlPO4-11 aluminophosphate and change the morphology and secondary pore structure characteristics of the AlPO4-11 crystals without using various growth modifiers.
引用
收藏
页码：606 / 613
页数：8
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