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Fluoride-free and low concentration template synthesis of hierarchical Sn-Beta zeolites: efficient catalysts for conversion of glucose to alkyl lactate
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Xiaomei Bian, Jingjing Huang, Jianhao Xin, Weiwen Lu, Tianliang Chen, Chen Su, Yunlai Zhou, Lipeng Wang, Feng |
| Copyright Year | 2017 |
| Abstract | Hierarchical Sn-Beta zeolite was prepared through a hydrothermal postsynthesis method, which employed no fluoride and only a small amount of tetraethyl ammonium hydroxide (TEAOH). The dual roles of TEAOH as a base and as a structure directing agent were discussed in detail, which were significantly affected by its concentration. At a TEAOH concentration of 0.2–0.4 mol L−1, hierarchical Sn-Beta zeolites with the most probable mesopore diameter of 7.8 nm were achieved. Other physicochemical properties of the hierarchical Sn-Beta including the content and state of Sn and the acidity were also characterized. The hierarchical Sn-Beta zeolite gave a higher yield of methyl lactate (58%) than the microporous Sn-Beta zeolite synthesized in fluoride medium (47%) due to the promoting effect of the hierarchical porosity on the conversion of glucose in methanol, which is an important and challenging process of a biorefinery. The hierarchical Sn-Beta zeolite is stable and can be recycled and reused five times without significant loss of activity and selectivity. |
| Starting Page | 692 |
| Ending Page | 701 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C6GC02437H |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c6/gc/c6gc02437h/c6gc02437h1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C6GC02437H |
| Volume Number | 19 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
