Hydrothermal synthesis of boehmite nanorods from alumina sols

被引：12

作者：

He, Fei ^{[1
,4
]}

Li, Wenjie ^{[1
]}

Pang, Tianliang ^{[1
]}

Zhou, Liang ^{[1
]}

Wang, Chen ^{[1
]}

Liu, Hang ^{[1
]}

Li, Mingwei ^{[2
]}

He, Xiaodong ^{[1
,3
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Mat, Harbin, Peoples R China

[3] Shenzhen STRONG Adv Mat Res Inst Co Ltd, Shenzhen, Peoples R China

[4] Harbin Inst Technol, Bldg,Sci Pk,2 Yikuang St,Nangang Dist, Harbin, Heilongjiang, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2022年 / 48卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Boehmite nanorods; Synthesis parameters; Micromorphology; Hydrothermal method; Sol-gel method; DISSIPATIVE PARTICLE DYNAMICS; GAMMA-ALOOH NANOTUBES; IONIC LIQUID; INTERFACIAL-TENSION; OXIDE NANOPARTICLES; MORPHOLOGY; GROWTH; SIZE; CRYSTALLIZATION; NANOFIBERS;

D O I：

10.1016/j.ceramint.2022.02.212

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Boehmite nanorods (BNRs) were synthesized via the sol-gel process and hydrothermal method from alumina sols. Four influence factors, i.e. hydrothermal temperature and time, acetic acid contents, alcohol contents and stirring patterns, were explored to understand the reasons of BNRs growth. Scanning electron microscopy (SEM), transmission electron microscope (TEM), Fourier transform infrared (FT-IR) spectra and X-ray diffraction (XRD) were used to investigate the micromorphology, functional groups and phase composites of BNRs. The results show that the hydrothermal temperature and the contents of acetic acid play important parts in the onedimension (1D) growth of BNRs. However, the hydrothermal time and the contents of alcohol have little effects. The growth mechanism of BNRs is related to the formation, growth and directional assembling of boehmite crystallites. After the simulation of dissipative particle dynamics (DPD), the increase of shear rate is beneficial to the 1D growth of BNRs.

引用

页码：18035 / 18047

页数：13

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