Journal
JOURNAL OF NATURAL GAS CHEMISTRY
Volume 20, Issue 1, Pages 48-52Publisher
ELSEVIER
DOI: 10.1016/S1003-9953(10)60145-4
Keywords
HNO3-pretreated CNTs; Cu-Co/CNTs catalysts; CO hydrogenation; higher-alcohols
Funding
- Foundation of Shaanxi Educational Committee [2010JK608]
- Research Foundation of XATU [204-000092]
- National Natural Science Foundation of China [205903603]
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HNO3-pretreated CNTs were employed as supports, and a special ultrasound-assisted impregnation method was designed to prepare supported Cu-Co catalysts for higher-alcohol synthesis from syngas. The catalysts used in this work were characterized by N-2 adsorption-desorption, TEM, XRD, H-2-TPR, CO-TPD techniques. It was found that the pre-treatment procedure of CNTs remarkably promoted the catalytic properties of the Cu-Co/CNTs catalysts. For the Cu-Co catalyst supported on CNTs pre-treated by 68 wt% HNO3, some active components were introduced into the CNTs channels, their dispersions and the amount of strongly adsorbed CO-species were improved. The CO conversion and alcohol yield on the HNO3-pretreated Cu-Co/CNTs catalyst were increased by similar to 21% and similar to 69%, respectively, compared with those on the normal Cu-Co/CNTs catalyst.
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