Oxygen-incorporated 3D flower-like MoS2 microsphere as a bifunctional catalyst for effective synthesis of 2, 5-diformyfuran from fructose. Issue 8 (15th March 2023)

• Record Type: Journal Article
• Authors: Yang, Zhenzhen; He, Yuhan; Tang, Pengfei; Xu, Chenhui; Zhang, Genlei; He, Jianbo
• Is Part Of: Catalysis science & technology. Volume 13:Issue 8(2023)
• Page Start: 2340
• Page End: 2348
• Publication Date: 2023-03-15
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d2cy01749k
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : An oxygen-incorporated 3D flower-like MoS2 microsphere was prepared by a simple hydrothermal procedure and served as a highly active catalyst in the synthesis of DFF from fructose. Abstract : It is challenging to effectively convert fructose to 2, 5-diformylfuran (DFF) over a simple and low-cost bifunctional catalyst. In this study, an oxygen-incorporated 3D flower-like MoS2 microsphere is prepared by a simple hydrothermal procedure and serves as a highly active bifunctional catalyst exhibiting both acidity and oxidability, which contribute to the dehydration of fructose to HMF and the aerobic oxidation of HMF to DFF, respectively. A DFF yield of 98.1% with a HMF conversion of 100% is achieved in the aerobic oxidation of HMF to DFF catalyzed by MoS2 under the optimum reaction conditions. Based on the experimental and catalyst characterization results, a possible reaction mechanism that involved Mo 6+ /Mo 4+ is proposed for MoS2 -catalyzed oxidation of HMF to DFF. Then, MoS2 is used as a bifunctional catalyst for direct conversion of fructose to DFF, achieving a high DFF yield of 81.3% by a "one-pot, two-step" strategy. Importantly, the as-prepared MoS2 catalyst reveals no significant change in five consecutive reaction runs demonstrating the excellent stability of the catalyst.