Journal
FUEL
Volume 210, Issue -, Pages 241-248Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2017.08.064
Keywords
Cu-Fe catalyst; N-CNT; Higher alcohols; Syngas
Categories
Funding
- Natural Science Foundation of China [91545115, 21473145]
- Program for Innovative Research Team in Chinese Universities [IRT_14R31]
Ask authors/readers for more resources
Heteroatom doping is an attractive approach for improving the properties of carbon materials for various applications. In this study, a series of nitrogen-doped (N-doped) carbon-nanotube-supported Cu-Fe (xCu(n)-Fe-m/yNCNT) catalysts were prepared for CO hydrogenation to higher alcohols. The structural and textural properties of N-doped catalysts were characterized by X-ray diffraction, transmission electron microscopy, hydrogen temperature- programmed reduction, and CO2 temperature-programmed desorption. The results revealed that doping N into CNT supports improved the Cu-Fe dispersion, strengthened the interaction of Cu and Fe species with N-CNT, and introduced many surface-basicity sites. Thus, an improved CO conversion and excellent selectivity to higher alcohols [S(C2+-OH)] were obtained. Furthermore, the selectivity to alcohols [S(ROH)] and S (C2+-OH)/S(MeOH) over the optimized 15Cu(1)-Fe-1/1.3N-CNT catalyst reached 27.2% and 2.2, while the corresponding values were 20.2% and 0.4, respectively, over the catalyst without N doping under identical reaction conditions. The present results on N-CNT supported Cu-Fe catalyst will provide further understanding on the catalyst design for the transformation of syngas to higher alcohols.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available