Bulletin of the Korean chemical society | |
In Situ-DRIFTS Study of Rh Promoted CuCo/Al2O3 for Ethanol Synthesis via CO Hydrogenation | |
Dingye Fang1  Hongfang Ma1  Haitao Zhang1  Fang Li1  Weiyong Ying1  | |
关键词: Copper-cobalt; Rhodium; DRIFTS; CO hydrogenation; Ethanol; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
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.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010245380ZK.pdf | 2818KB | download |