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| Preparation of Dehydrated Ni-Fe Hydrotalcite-like Compounds as an Eco-Friendly Catalyst for Highly Selective Acetalization of Biomass-Derived Furfural |
| Author Name | Affiliation | E-mail | | CHENG Shu-Yan | State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
College of Environmental & Resource Science, Shanxi University, Taiyuan 030013, China
Shanxi Laboratory for Yellow River, Shanxi University, Taiyuan 030013, China | | | KOU Jia-Wei | State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China | koujiawei@tyut.edu.cn | | CHENG Fang-Qin | Shanxi Laboratory for Yellow River, Shanxi University, Taiyuan 030013, China | |
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| Abstract: The dehydrated Ni-Fe hydrotalcite-like compounds (Ni-Fe HTLCs) containing nitrate anions were synthesized and applied in furfural acetalization at room temperature. The dehydrated Ni-Fe HTLCs showed good selectivity for furfural acetalization and achieved almost complete conversion of furfural. The dehydrated Ni-Fe HTLCs as water-tolerant Lewis acids and water scavengers was proved to be an efficient bifunctional catalyst for furfural acetalization. The removal of interlayer water leads to shrinkage of Ni-Fe HTLCs particles and increase in electronic repulsion among NO3- ions in the interlayer. The weak acid sites in Ni-Fe HTLCs play an important role in furfural acetalization. The dehydration changes structure of the acid sites and thus improves activity of the weak acid sites. The dehydrated Ni-Fe HTLCs can absorb the most of the resulting water during furfural acetalization, but the structure of Ni-Fe HTLCs cannot completely recover after rehydration possibly due to hindering effect of organic molecules diffusing into interlayer space. |
| Keywords: hydrotalcite-like compound furfural acetal bifunctional catalyst bio-oil |
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| CHENG Shu-Yan,KOU Jia-Wei,CHENG Fang-Qin.Preparation of Dehydrated Ni-Fe Hydrotalcite-like Compounds as an Eco-Friendly Catalyst for Highly Selective Acetalization of Biomass-Derived Furfural[J].Chinese Journal of Inorganic Chemistry,2021,37(11):2092-2100. |
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