|
|
| 论文编号: |
122214O120120282 |
| 第一作者所在部门: |
609组 |
| 中文论文题目: |
Preparation and activity of Cu/Zn/Al/Zr catalystsvia hydrotalcite-containing precursors for methanol synthesis from CO2 hydrogenation
|
| 英文论文题目: |
Preparation and activity of Cu/Zn/Al/Zr catalystsvia hydrotalcite-containing precursors for methanol synthesis from CO2 hydrogenation
|
| 论文题目英文: |
|
| 作者: |
高鹏
|
| 论文出处: |
|
| 刊物名称: |
Catalysis Science & Technology
|
| 年: |
2012
|
| 卷: |
|
| 期: |
2 |
| 页: |
1447-1454 |
| 联系作者: |
|
| 收录类别: |
|
| 影响因子: |
|
| 摘要: |
A series of Cu/Zn/Al/Zr catalysts were synthesized by calcination of hydrotalcite-containing
precursors with different Cu2+/Zn2+ atomic ratios (n). Two other catalysts (n = 2) were also
prepared via phase-pure hydrotalcite-like and conventional rosasite precursors for comparison.
XRD and UV-Vis-NIR DRS characterizations demonstrate that most Cu2+ of hydrotalcitecontaining
materials did not enter the layer structure. The Cu dispersion of the catalysts decreases
with the increase of Cu content, while both the exposed Cu surface area and the Cu+ and Cu0
content on the reduced surface reach a maximum when n is 2. The catalytic performance for the
methanol synthesis from CO2 hydrogenation was also tested. The catalytic activity and selectivity
of the catalysts (n = 0.5–4) via hydrotalcite-containing precursors rise first and then decrease with
increasing Cu2+/Zn2+ ratios, and the optimum performance is obtained over the catalyst with
Cu2+/Zn2+ = 2. Moreover, the Cu/Zn/Al/Zr catalyst (n = 2) via hydrotalcite-containing
precursor exhibits the best catalytic performance, which is mainly due to the maximum content of
active species compared with another two catalysts derived from different precursors. |
| 英文摘要: |
|
| 外单位作者单位: |
|
| 备注: |
|
关闭窗口 |
|
|
|
