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| Synthesis of Higher Alcohols from Syngas over Cu/Zn/Al Hydrotalcite-Derived Oxides Modified by Triethanolamine |
| Author Name | Affiliation | E-mail | | CHENG Shu-Yan | Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
Department of Environmental Engineering, Shanxi University, Taiyuan 030013, China | | | HAO Yan-Hong | Department of Environmental Engineering, Shanxi University, Taiyuan 030013, China | | | KOU Jia-Wei | Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China | koujiawei2015@163.com | | GAO Yang-Yan | Department of Environmental Engineering, Shanxi University, Taiyuan 030013, China | |
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| Abstract: The Cu/Zn/Al hydrotalcite-like precursor was prepared by co-precipitation method and modified by triethanolamine (TEA), and then the precursor was calcined to obtain TEA-modified Cu/Zn/Al catalysts. The catalysts were characterized by XRD, FTIR, H2-TPR, CO-TPD and SEM techniques, and their catalytic activities for isobutanol synthesis were evaluated. The results revealed that TEA can change morphology of the catalysts and form flocculent structure on the surface of the catalysts. In addition, TEA can result in structural expansion of hydrotalcite-like precursor and thus lead to structural changes in the Cu/Zn/Al catalysts, which facilitate hydrogen reduction of CuO components and CO chemisorption on the surface of the catalysts. These changes promote isobutanol synthesis. The catalytic performance of the TEA-modified Cu/Zn/Al catalysts was optimal when addition ratio of TEA reached to nTEA/nZn=0.5. |
| Keywords: triethanolamine Cu/Zn/Al hydrotalcite-like compounds syngas isobutanol |
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| CHENG Shu-Yan,HAO Yan-Hong,KOU Jia-Wei,GAO Yang-Yan.Synthesis of Higher Alcohols from Syngas over Cu/Zn/Al Hydrotalcite-Derived Oxides Modified by Triethanolamine[J].Chinese Journal of Inorganic Chemistry,2019,35(2):300-306. |
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