数字农科院2.0

A Pt/Nb2O5 catalyst for oxidative conversion of 1,5-pentanediol into 5-hydroxypentanal and δ-valerolactone under ambient conditions

文献类型： 外文期刊

作者： Yao, Ling;Lu, Guilong;Haver, Yannik;Hu, Yezi;Shen, Zewen;Kong, Xinyu;Li, Zhaoxin;Peng, Baoxiang;Zhao, Guixia;Muhler, Martin;Huang, Xiubing

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期刊名称： NANOSCALE

ISSN： 2040-3364

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Hydroxyaldehydes and lactones such as 5-hydroxypentanal (5-HP) and delta-valerolactone (DVL) are important value-added feedstocks for organic synthesis and biomedical production. Usually, high temperature, organic solvents or toxic oxidants are involved in the selective oxidation of 1,5-pentanediol (1,5-PDO) to 5-HP and DVL. Here, an environmentally friendly strategy for the simultaneous synthesis of 5-HP and DVL via the efficient oxidation of 1,5-PDO using an aqueous suspension of Pt-loaded Nb2O5 nanoparticles under ambient conditions is proposed. The characterization results indicate that the positively charged Pt delta+ species formed due to electronic metal-support interactions between Pt and Nb2O5 are beneficial for the primary dehydrogenation of 1,5-PDO to 5-HP on Pt, while the strong Lewis acid sites on Nb2O5 are able to improve aldol condensation and intramolecular cyclization of 5-HP to DVL.

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