| Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/γ-Al2O3 hybrid catalyst |
| Li, Z.; Li, J.; Yang, C.; Wu, J.
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| 2012
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| 发表期刊 | Journal of Natural Gas Chemistry
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| 卷号 | 21期号:3页码:360-365 |
| 摘要 | A series of hybrid catalysts were made by physically mixing Cu-ZrO2 and γ-Al2O3, for former it was modified with different loadings of La2O3 prepared by co-precipitation method. The catalysts were characterized by BET, XRD, N2O-adsorption, EXAFS,H2-TPR, NH3-TPDtechniques and evaluated in the synthesis of dimethyl ether from syngas. The results show that La2O3 promoted catalysts displayed a significantly better catalytic performance compared with Cu-ZrO2/γ-Al2O3 catalyst in CO conversion and DME selectivity, and the optimum catalytic activity was obtained when the content of La2O3 was 12 wt%. The characterizations reveal that high copper dispersion, facile reducibility of copper particles and appropriate amount of acidic sites are responsible for the superior catalytic performance.
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| 关键词 | Dimethyl Ether
Syngas
Hybrid Catalyst
Cu-zro2
La2o3stract.
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| 学科领域 | 热化学转化
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| 收录类别 | SCI
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| 语种 | 英语
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.qibebt.ac.cn/handle/337004/1087
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| 专题 | 热化学转化研究组
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推荐引用方式
GB/T 7714 |
Li, Z.,Li, J.,Yang, C.,et al. Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/γ-Al2O3 hybrid catalyst[J]. Journal of Natural Gas Chemistry,2012,21(3):360-365.
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| APA |
Li, Z.,Li, J.,Yang, C.,&Wu, J..(2012).Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/γ-Al2O3 hybrid catalyst.Journal of Natural Gas Chemistry,21(3),360-365.
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| MLA |
Li, Z.,et al."Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/γ-Al2O3 hybrid catalyst".Journal of Natural Gas Chemistry 21.3(2012):360-365.
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