In Situ-DRIFTS Study of Rh Promoted CuCo/Al2O3 for Ethanol Synthesis via CO Hydrogenation 


Vol. 35,  No. 9, pp. 2726-2732, Sep.  2014
10.5012/bkcs.2014.35.9.2726


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  Abstract

The promoting effect of rhodium on the structure and activity of the supported Cu-Co based catalysts for CO hydrogenation was investigated in detail. The samples were characterized by DRIFTS, N2-adsorption, XRD, H2-TPR, H2-TPD and XPS. The results indicated that the introduction of rhodium to Cu-Co catalysts resulted in modification of metal dispersion, reducibility and crystal structure. DRIFTS results of CO hydrogenation at reaction condition (P=2 MPa, T=260 oC) indicated the addition of 1 wt % rhodium improved hydrogenation ability of Cu-Co catalysts. The ethanol selectivity and CO conversion were both improved by 1 wt % Rh promoted Cu-Co based catalysts. The alcohol distribution over un-promoted and rhodium promoted Cu-Co based catalysts obeys A-S-F rule and higher chain growth probability was got on rhodium promoted catalyst.

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  Cite this article

[IEEE Style]

F. Li, H. Ma, H. Zhang, W. Ying, D. Fang, "In Situ-DRIFTS Study of Rh Promoted CuCo/Al2O3 for Ethanol Synthesis via CO Hydrogenation," Bulletin of the Korean Chemical Society, vol. 35, no. 9, pp. 2726-2732, 2014. DOI: 10.5012/bkcs.2014.35.9.2726.

[ACM Style]

Fang Li, Hongfang Ma, Haitao Zhang, Weiyong Ying, and Dingye Fang. 2014. In Situ-DRIFTS Study of Rh Promoted CuCo/Al2O3 for Ethanol Synthesis via CO Hydrogenation. Bulletin of the Korean Chemical Society, 35, 9, (2014), 2726-2732. DOI: 10.5012/bkcs.2014.35.9.2726.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949