Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst

doi:10.1016/S1003-9953(11)60377-0

QIBEBT-IR > 热化学转化研究组

	Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst
	Li, Zhuo1,2 ; Li, Jianqing1 ; Yang, Cheng 1; Wu, Jinhu1
	2012-05-01
发表期刊	JOURNAL OF NATURAL GAS CHEMISTRY
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 gamma-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, H-2-TPR, NH3-TPD techniques 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/gamma-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.
文章类型	Article
关键词	Dimethyl Ether Syngas Hybrid Catalyst Cu-zro2 La2o3
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/S1003-9953(11)60377-0
关键词[WOS]	METHANOL SYNTHESIS ; CUO-ZNO-AL2O3/GAMMA-AL2O3 CATALYST ; BIFUNCTIONAL CATALYST ; CO HYDROGENATION ; CARBON-DIOXIDE ; ZIRCONIA ; OXIDE ; DME ; COPPER/ZIRCONIA ; DEACTIVATION
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000305776100022
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6385
专题	热化学转化研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhuo,Li, Jianqing,Yang, Cheng,et al. Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2012,21(3):360-365.
APA	Li, Zhuo,Li, Jianqing,Yang, Cheng,&Wu, Jinhu.(2012).Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst.JOURNAL OF NATURAL GAS CHEMISTRY,21(3),360-365.
MLA	Li, Zhuo,et al."Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La2O3 modified Cu-ZrO2/gamma-Al2O3 hybrid catalyst".JOURNAL OF NATURAL GAS CHEMISTRY 21.3(2012):360-365.