The synthesis of stable, high solid content alumina sol

Chengbin Jing; Xiujian Zhao; Haizheng Tao

doi:10.1007/s10971-006-5036-z

The synthesis of stable, high solid content alumina sol

Chengbin Jing^*
, Xiujian Zhao
, Haizheng Tao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The stable alumina sol with an ASB/water molar ratio of 1:30 could not be obtained via the general peptization process because gelation occurred immediately. With the addition of EAcAc the stability of this sol was greatly improved. The studies using TEM, UV-V is and IR spectra revealed that a surface modification layer was formed around the Al₂O₃ colloidal particle through the chelating reaction of EAcAc with the surface HO-Al groups. The Al₂O₃ colloidal particles were therefore sufficiently capped and the growth of the colloidal particles was effectively prevented.

Original language	English
Pages (from-to)	19-23
Number of pages	5
Journal	Journal of Sol-Gel Science and Technology
Volume	38
Issue number	1
DOIs	https://doi.org/10.1007/s10971-006-5036-z
State	Published - Apr 2006
Externally published	Yes

Keywords

Alumina sol
Aluminum sec-butoxide
Chelating reaction
Ethylacetoacetate
Surface modification

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10.1007/s10971-006-5036-z

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title = "The synthesis of stable, high solid content alumina sol",

abstract = "The stable alumina sol with an ASB/water molar ratio of 1:30 could not be obtained via the general peptization process because gelation occurred immediately. With the addition of EAcAc the stability of this sol was greatly improved. The studies using TEM, UV-V is and IR spectra revealed that a surface modification layer was formed around the Al2O3 colloidal particle through the chelating reaction of EAcAc with the surface HO-Al groups. The Al2O3 colloidal particles were therefore sufficiently capped and the growth of the colloidal particles was effectively prevented.",

keywords = "Alumina sol, Aluminum sec-butoxide, Chelating reaction, Ethylacetoacetate, Surface modification",

author = "Chengbin Jing and Xiujian Zhao and Haizheng Tao",

year = "2006",

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doi = "10.1007/s10971-006-5036-z",

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T1 - The synthesis of stable, high solid content alumina sol

AU - Jing, Chengbin

AU - Zhao, Xiujian

AU - Tao, Haizheng

PY - 2006/4

Y1 - 2006/4

N2 - The stable alumina sol with an ASB/water molar ratio of 1:30 could not be obtained via the general peptization process because gelation occurred immediately. With the addition of EAcAc the stability of this sol was greatly improved. The studies using TEM, UV-V is and IR spectra revealed that a surface modification layer was formed around the Al2O3 colloidal particle through the chelating reaction of EAcAc with the surface HO-Al groups. The Al2O3 colloidal particles were therefore sufficiently capped and the growth of the colloidal particles was effectively prevented.

AB - The stable alumina sol with an ASB/water molar ratio of 1:30 could not be obtained via the general peptization process because gelation occurred immediately. With the addition of EAcAc the stability of this sol was greatly improved. The studies using TEM, UV-V is and IR spectra revealed that a surface modification layer was formed around the Al2O3 colloidal particle through the chelating reaction of EAcAc with the surface HO-Al groups. The Al2O3 colloidal particles were therefore sufficiently capped and the growth of the colloidal particles was effectively prevented.

KW - Alumina sol

KW - Aluminum sec-butoxide

KW - Chelating reaction

KW - Ethylacetoacetate

KW - Surface modification

UR - https://www.scopus.com/pages/publications/33646580023

U2 - 10.1007/s10971-006-5036-z

DO - 10.1007/s10971-006-5036-z

M3 - 文章

AN - SCOPUS:33646580023

SN - 0928-0707

VL - 38

SP - 19

EP - 23

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 1

ER -

The synthesis of stable, high solid content alumina sol

Abstract

Keywords

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