| Autor: |
Ruite Lai, Qidong Hou, Guanjie Yu, Chao Xie, Hengli Qian, Tianliang Xia, Xinyu Bai, Yao Tang, Mian Laiq Ur Rehman, Meiting Ju |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Catalysis Communications, Vol 185, Iss , Pp 106803- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1873-3905 |
| DOI: |
10.1016/j.catcom.2023.106803 |
| Popis: |
Dihydroxyacetone isomerization is a fundamental reaction for the production of lactic acid using different feedstocks. However, achieving excellent catalytic activity and resistance against leaching in water is challenging. Herein, we devised a Sn doped zirconium phosphate as effective heterogeneous catalyst. The incorporation of Sn could remarkably aggrandize the content of strong Lewis acid sites while retain relatively high surface areas. Gratifyingly, this catalyst exhibits enhanced activity and reusability for selective dihydroxyacetone isomerization into lactic acid with water as solvent. High lactic acid yields of 70.30 and 76.25% were achieved in water and water/acetone under optimal reaction conditions, respectively. The composition and activity of catalyst are reserved with reduced ions leaching. The excellent catalytic performance is attributed to accelerated conversion of pyruvaldehyde to lactic acid by the strong Lewis acid sites. Nuclear magnetic resonance revealed that the reaction is proceeded via a keto-enol tautomerization process. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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