Hu Di, Xu Hong, Wu Zuotong, Zhang Man, Zhao Zhiyue, Wang Yuchen, Yan Kai
Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China.
Front Chem. 2021 Oct 12;9:725175. doi: 10.3389/fchem.2021.725175. eCollection 2021.
Developing a low-cost and robust catalyst for efficient transformation of biomass-derived platform chemicals plays a crucial role in the synthesis of future transportation fuels. Herein, a post-synthetic strategy was employed to develop a noble metal-free and robust ZrY zeolite catalyst, which is efficient for the hydrogenation of biomass-derived levulinic acid (LA) into biofuel γ-valerolactone (GVL), whereas over 95% yield of GVL was achieved in 10 h at 220°C. The effects of acidic properties from ZrY catalysts and various reaction parameters on the catalytic performance were then discussed in detail. Subsequently, different characterization tools were used to compare the difference and relationship of structure activity between the fresh and spent ZrY catalysts. It was found that acidity and the metal-support interaction were important for the direct synthesis of GVL. This work provides a guideline to design a noble metal-free catalyst for high-value utilization of biomass-derived sources.
开发一种低成本且性能稳定的催化剂，用于生物质衍生平台化学品的高效转化，这在未来交通燃料的合成中起着至关重要的作用。在此，采用一种合成后策略来开发一种无贵金属且性能稳定的ZrY沸石催化剂，该催化剂对于将生物质衍生的乙酰丙酸（LA）氢化为生物燃料γ-戊内酯（GVL）具有高效性，在220°C下10小时内可实现超过95%的GVL产率。然后详细讨论了ZrY催化剂的酸性性质和各种反应参数对催化性能的影响。随后，使用不同的表征工具来比较新鲜和使用过的ZrY催化剂之间结构活性的差异和关系。结果发现，酸性和金属-载体相互作用对于直接合成GVL很重要。这项工作为设计用于生物质衍生资源高价值利用的无贵金属催化剂提供了指导。
