Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (9): 1429-1436.DOI: 10.19894/j.issn.1000-0518.210531
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Dan ZHANG1,2, Run-Mei SHANG2, Zhen-Tao ZHAO2, Jun-Hua LI1,2(), Jin-Juan XING2
Received:
2021-11-10
Accepted:
2022-03-01
Published:
2022-09-01
Online:
2022-09-08
Contact:
Jun-Hua LI
About author:
lijunhua0521@163.comSupported by:
CLC Number:
Dan ZHANG, Run-Mei SHANG, Zhen-Tao ZHAO, Jun-Hua LI, Jin-Juan XING. Selective Oxidation of Methanol to Dimethoxymethane over V/Ce⁃Al2O3 Catalysts[J]. Chinese Journal of Applied Chemistry, 2022, 39(9): 1429-1436.
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URL: http://yyhx.ciac.jl.cn/EN/10.19894/j.issn.1000-0518.210531
Fig.2 SEM (A,B,C,D) and EDS (E,F,G,H,I) images of catalystsA,B. SEM images of 20V/Al2O3;C,D. SEM image of 20V/12Ce-Al2O3;E. EDS image of 20V/12Ce-Al2O3;F. Al;G. O;H. V;I. Ce
催化剂 Catalyst | 甲醇转化率 Methanol conversion/% | 产物选择性 Product selectivity/% | |||
---|---|---|---|---|---|
After 1 h | After 12 h | DMM | FA | MF | |
20V/Al2O3 | 83.8 | 66.8 | 0.0 | 98.3 | 1.7 |
20V/4 | 50.1 | 40.5 | 35.6 | 64.4 | 0.0 |
20V/8 | 23.6 | 22.1 | 99.9 | 0.0 | 0.0 |
20V/12 | 20.3 | 19.2 | 99.9 | 0.0 | 0.0 |
20V/16 | 18.6 | 17.9 | 99.9 | 0.0 | 0.0 |
20V/20 | 17.0 | 16.6 | 99.9 | 0.0 | 0.0 |
Table 1 Catalytic performance of catalysts with different amount of CeO2 at 170 ℃
催化剂 Catalyst | 甲醇转化率 Methanol conversion/% | 产物选择性 Product selectivity/% | |||
---|---|---|---|---|---|
After 1 h | After 12 h | DMM | FA | MF | |
20V/Al2O3 | 83.8 | 66.8 | 0.0 | 98.3 | 1.7 |
20V/4 | 50.1 | 40.5 | 35.6 | 64.4 | 0.0 |
20V/8 | 23.6 | 22.1 | 99.9 | 0.0 | 0.0 |
20V/12 | 20.3 | 19.2 | 99.9 | 0.0 | 0.0 |
20V/16 | 18.6 | 17.9 | 99.9 | 0.0 | 0.0 |
20V/20 | 17.0 | 16.6 | 99.9 | 0.0 | 0.0 |
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