Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (12): 2566.doi: 10.7503/cjcu20190369
• Physical Chemistry • Previous Articles Next Articles
Enshuang ZHANG,Hongyan HUANG,Tao LIU,Lijuan HE,Hui GUO,Wenjing LI(),Fan ZHANG,Jieying YANG,Hao ZHANG,Yingmin ZHAO
Received:
2019-07-03
Online:
2019-12-04
Published:
2019-12-04
Contact:
Wenjing LI
E-mail:ht3lwj@126.com
CLC Number:
TrendMD:
Enshuang ZHANG,Hongyan HUANG,Tao LIU,Lijuan HE,Hui GUO,Wenjing LI,Fan ZHANG,Jieying YANG,Hao ZHANG,Yingmin ZHAO. Synthesis and Reusable Properties of Robust Al2O3-SiO2 Aerogel[J]. Chem. J. Chinese Universities, 2019, 40(12): 2566.
Sample | SBET/(m2·g-1) | Pore size/nm | Density/(g·cm-3) |
---|---|---|---|
S1 | 182.4(100.3) | 7.3 | 0.20 |
S2 | 180.9(123.9) | 8.0 | 0.22 |
S3 | 157.0(128.9) | 9.4 | 0.24 |
S4 | 165.1(125.4) | 10.2 | 0.25 |
Sample | SBET/(m2·g-1) | Pore size/nm | Density/(g·cm-3) |
---|---|---|---|
S1 | 182.4(100.3) | 7.3 | 0.20 |
S2 | 180.9(123.9) | 8.0 | 0.22 |
S3 | 157.0(128.9) | 9.4 | 0.24 |
S4 | 165.1(125.4) | 10.2 | 0.25 |
Fig.3 TEM images(A—E) and XRD patterns(F) of Al2O3-SiO2 aerogels at different heating temperatures (A) Original; (B) 800 ℃; (C) 1000 ℃; (D) 1200 ℃; (E) 1300 ℃; (F) a. orginal; b. S2-800; c. S2-900;d. S2-1000; e. S2-1200; f. S2-1300.
Sample | SBET/(m2·g-1) | Pore size/nm | Density/(g·cm-3) |
---|---|---|---|
Original | 180.9 | 7.6 | 0.22 |
S2-800 | 176.3 | 7.9 | 0.21 |
S2-1000 | 158.2 | 11.7 | 0.21 |
S2-1200 | 123.9 | 14.1 | 0.25 |
S2-1300 | 70.2 | 15.9 | 0.32 |
Sample | SBET/(m2·g-1) | Pore size/nm | Density/(g·cm-3) |
---|---|---|---|
Original | 180.9 | 7.6 | 0.22 |
S2-800 | 176.3 | 7.9 | 0.21 |
S2-1000 | 158.2 | 11.7 | 0.21 |
S2-1200 | 123.9 | 14.1 | 0.25 |
S2-1300 | 70.2 | 15.9 | 0.32 |
Fig.4 Optical photograph and microstructure of Al2O3-SiO2 aerogels before and after the experiment (B6) TEM image of the corresponding aerogel microstructure.
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