Preparation of pseudo-boehmite through the dawsonite as an intermediate

勃姆石 材料科学 化学工程 化学 冶金 工程类
作者
Zhihua Zhao,Renjie Wang,Xiaoqi Peng,Deng Penghui,Ye Tian,Ziran Liu,Pu Shi,Lihui Wu,Zhongwei Zhang,Chen Chen,Chunbo Liu
出处
期刊:Inorganic and Nano-Metal Chemistry [Taylor & Francis]
卷期号:50 (11): 1094-1102 被引量:3
标识
DOI:10.1080/24701556.2020.1735425
摘要

In this article, a process named NaAlO2-Dawsonite-Pseudo-boehmite was proposed. By using dawsonite as an intermediate, pseudo-boehmite (PB) with high pore volume could be synthesized through this process. The as-synthesized mesoporous products were characterized by powder X-ray diffraction (PXRD), transmission electron microscope (TEM), and nitrogen adsorption-desorption. It was found that the pH value of the solution plays an important role in the formation of high pore volume PB. PXRD, TEM, and N2 adsorption-desorption isotherms studies of the structures isolated from the reaction mixtures under various transforming pH values were undertaken to elucidate the mechanism responsible for the formation of the PB with high pore volume. Furthermore, we found that the specific surface area increased with the decrease of the pH value, and the pore volume, the average pore diameter of the PB could be adjustable through the experimental parameters.
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