Hierarchical zeolite with open tin sites stabilized by metal ions catalyze the conversion of polysaccharides to alkyl lactates
文献类型：期刊论文
| 作者 | Sun, Pengyao1,2; Ling, Wenmeng1; Wang, Haiyong1; Huang, Jiaxin1; Liao, Yuhe1; Wang, Chenguang1 |
| 刊名 | MOLECULAR CATALYSIS
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 545页码:8 |
| 关键词 | Heterogeneous catalysis Hierarchical zeolite Biomass conversion Alkyl lactate |
| ISSN号 | 2468-8231 |
| DOI | 10.1016/j.mcat.2023.113226 |
| 通讯作者 | Wang, Chenguang(wangcg@ms.giec.ac.cn) |
| 英文摘要 | The high yield of alkyl lactate from polysaccharides is attractive and challenging. Here, we report the remarkable catalytic ability of hierarchical tin-containing Beta zeolites for this process. The hierarchical structure, mediated by polystyrene microspheres or starch, improves mass transfer in the polysaccharide conversion. Two types of acidic sites in the zeolite achieved cooperation in the cascade conversion. Bronsted acid associated with Al promoted the hydrolysis of polysaccharides to monosaccharides; the abundant open Sn site stabilized by Ni2+ converted the monosaccharides to alkyl lactate. Polydextrose was used as a substrate in various alcohols, yielding up to 44% for methyl lactate, 37% for ethyl lactate, and 36% for propyl lactate, and the catalytic yields were consistent throughout three runs. More than 90% of the catalytic capability was recovered by the ion exchange and calcination procedures. |
| WOS关键词 | LEWIS-ACID ZEOLITES ; BETA-ZEOLITE ; SN-BETA ; TRANSFORMATION ; ISOMERIZATION ; GLUCOSE ; BIOMASS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001048992100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39592]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Chenguang |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Pengyao,Ling, Wenmeng,Wang, Haiyong,et al. Hierarchical zeolite with open tin sites stabilized by metal ions catalyze the conversion of polysaccharides to alkyl lactates[J]. MOLECULAR CATALYSIS,2023,545:8. |
| APA | Sun, Pengyao,Ling, Wenmeng,Wang, Haiyong,Huang, Jiaxin,Liao, Yuhe,&Wang, Chenguang.(2023).Hierarchical zeolite with open tin sites stabilized by metal ions catalyze the conversion of polysaccharides to alkyl lactates.MOLECULAR CATALYSIS,545,8. |
| MLA | Sun, Pengyao,et al."Hierarchical zeolite with open tin sites stabilized by metal ions catalyze the conversion of polysaccharides to alkyl lactates".MOLECULAR CATALYSIS 545(2023):8. |
入库方式： OAI收割
来源：广州能源研究所
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