Hou Pan, Su Haopeng, Jin Keyan, Li Qiang, Yan Wenfu
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
Molecules. 2024 Aug 9;29(16):3779. doi: 10.3390/molecules29163779.
γ-valerolactone (GVL), derived from biomass, is a crucial platform compound for biofuel synthesis and various industrial applications. Current methods for synthesizing GVL involve expensive catalysts and high-pressure hydrogen, prompting the search for greener alternatives. This study focuses on a novel zirconium phosphate (ZrP)-pillared zeolite MCM-36 derivative catalyst for converting levulinic acid (LA) to GVL using alcohol as a hydrogen source. The incorporation of ZrP significantly contributes to mesoporosity and greatly enhances the acidity of the catalysts. Additionally, we employed P MAS NMR to comprehensively investigate the influence of phosphorus species on both the acidity and the catalytic conversion of LA to GVL. By adjusting the Zr-to-P ratios, we synthesized catalysts with enhanced acidity, achieving high conversion of LA and selectivity for GVL. The catalyst exhibited high recyclability, showing only minor deactivation over the course of five cycles. Furthermore, the catalyst was successfully applied to the one-pot conversion of furfural to GVL, showcasing its versatility in biomass conversion. This study highlights the potential of the MCM-ZrP1 catalyst for sustainable biomass conversion and offers insights for future research in renewable energy technologies.
γ-戊内酯（GVL）源自生物质，是生物燃料合成及各种工业应用中的关键平台化合物。目前合成GVL的方法涉及昂贵的催化剂和高压氢气，这促使人们寻找更绿色的替代方法。本研究聚焦于一种新型磷酸锆（ZrP）柱撑沸石MCM - 36衍生物催化剂，该催化剂以醇为氢源将乙酰丙酸（LA）转化为GVL。ZrP的引入显著促进了介孔的形成，并极大地增强了催化剂的酸度。此外，我们采用磷的固体核磁共振（P MAS NMR）全面研究了磷物种对酸度以及LA转化为GVL的催化转化率的影响。通过调整Zr与P的比例，我们合成了酸度增强的催化剂，实现了LA的高转化率和对GVL的高选择性。该催化剂表现出高可回收性，在五个循环过程中仅显示出轻微失活。此外，该催化剂成功应用于糠醛一锅法转化为GVL，展示了其在生物质转化中的多功能性。本研究突出了MCM - ZrP1催化剂在可持续生物质转化方面的潜力，并为可再生能源技术的未来研究提供了见解。
