Enhanced Catalytic Activity for Levulinic Acid Esterification Using Covalent Organic Framework Heterogenized Heteropolyacids
文献类型：期刊论文
| 作者 | Gao, Tianyu1; Cui, Yanbin1,2; Wang, Haiyong1,2; Liao, Yuhe1,2; Khan, Md Un Nazmus Sakib1,2; Yan, Long1,2; Du, Xiaorui1,2; Wang, Chenguang1,2 |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2024-02-26 |
| 卷号 | 12期号:10页码:4286-4299 |
| 关键词 | levulinic acid esterification covalent organic frameworks heteropoly acids heterogenization acid sites electron delocalization |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.3c08481 |
| 通讯作者 | Wang, Chenguang(wangcg@ms.giec.ac.cn) |
| 英文摘要 | Alkyl levulinates act as crucial additives in gasoline and biodiesel and are largely produced through esterification of levulinic acid (LA) with alcohols using homogeneous acids suffering from equipment corrosion and low reusability issues. Here, in this work, a homogeneous phosphotungstic acid (HPW) catalyst was heterogenized via incorporation on a 2D imine-based covalent organic framework material (LZU1) to obtain a heterogeneous HPW-LZU1 catalyst. The material synthesis process was comprehensively monitored through 1H NMR, solid 13C MAS NMR, ATR-FTIR, etc. When the HPW/LZU1 mass ratio was 8.6, the HPW-LZU1 catalyst exhibited an excellent catalytic activity, with >90% conversion of LA and 100% selectivity of alkyl levulinates obtained, comparable to the HPW catalyst. Catalytic performance without obvious decrease after five cycles demonstrated excellent stability and reusability of the as-prepared catalyst. In situ FTIR study shows that LA was dominantly adsorbed on the Bro''nsted acid sites, while methanol was adsorbed on the Bro''nsted and Lewis acid sites. The HPW-pi interaction-induced electron delocalization effect over the catalyst effectively enhanced the adsorption of LA and alcohols and the attack of alcohols to LA through AAc1 mechanism, attributing to the high catalytic performance of the catalyst. |
| WOS关键词 | EFFICIENT CONVERSION ; BIODIESEL PRODUCTION ; PHOSPHOTUNGSTIC ACID ; RECYCLABLE CATALYST ; GAMMA-VALEROLACTONE ; IONIC LIQUIDS ; BIOMASS ; EPOXIDATION |
| 资助项目 | National Natural Science Foundation of China[52276220] ; National Natural Science Foundation of China project[2020B1111570001] ; Key Technologies R&D Program of Guangdong Province ; Youth Innovation Promotion Association, CAS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001177408300001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China project ; Key Technologies R&D Program of Guangdong Province ; Youth Innovation Promotion Association, CAS |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41187]  |
| 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, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Tianyu,Cui, Yanbin,Wang, Haiyong,et al. Enhanced Catalytic Activity for Levulinic Acid Esterification Using Covalent Organic Framework Heterogenized Heteropolyacids[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2024,12(10):4286-4299. |
| APA | Gao, Tianyu.,Cui, Yanbin.,Wang, Haiyong.,Liao, Yuhe.,Khan, Md Un Nazmus Sakib.,...&Wang, Chenguang.(2024).Enhanced Catalytic Activity for Levulinic Acid Esterification Using Covalent Organic Framework Heterogenized Heteropolyacids.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,12(10),4286-4299. |
| MLA | Gao, Tianyu,et al."Enhanced Catalytic Activity for Levulinic Acid Esterification Using Covalent Organic Framework Heterogenized Heteropolyacids".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12.10(2024):4286-4299. |
入库方式： OAI收割
来源：广州能源研究所
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