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Interplay of Lewis and Brønsted Acid Sites in Zr-Based Metal-Organic Frameworks for Efficient Esterification of Biomass-Derived Levulinic Acid

  • Fenfen Wang
  • , Zhijie Chen
  • , Haoyuan Chen
  • , Timothy A. Goetjen
  • , Peng Li
  • , Xingjie Wang
  • , Selim Alayoglu
  • , Kaikai Ma
  • , Yongwei Chen
  • , Tiejun Wang
  • , Timur Islamoglu
  • , Yanxiong Fang
  • , Randall Q. Snurr
  • , Omar K. Farha
  • Guangdong University of Technology
  • Northwestern University
  • Fudan University

科研成果: 期刊稿件文章同行评审

78 引用 (Scopus)

摘要

We report the performance of UiO-66 and its Brønsted acid functionalized derivative, UiO-66-(COOH)2, as heterogeneous catalysts for levulinic acid esterification with ethanol. Importantly, compared with UiO-66, UiO-66-(COOH)2 displayed superior catalytic performance (up to 97.0 ± 1.1% yield of ethyl levulinate) attributed to the synergistic effect between Lewis acidic Zr clusters and Brønsted acidic -COOH groups. Furthermore, UiO-66-(COOH)2 was stable and reusable without an appreciable loss in catalytic activity for at least five consecutive cycles. This study demonstrates that the interplay of Brønsted and Lewis acid sites in zirconium metal-organic frameworks leads to more efficient catalytic conversion of a biomass feedstock to biofuel, and with further hypothesis driven research, additional materials that show promise as candidates for catalytic conversion of biomass feedstocks to biofuels and valuable chemicals can be developed.

源语言英语
页(从-至)32090-32096
页数7
期刊ACS Applied Materials and Interfaces
11
35
DOI
出版状态已出版 - 4 9月 2019
已对外发布

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