摘要
Abstract A new solid acid catalyst Fe 3 O 4 @TNTs-SO 3 H was successfully prepared, characterized, and applied for efficient conversion of renewable levulinic acid to n -butyl levulinate, serving as a promising liquid fuel additive. This catalyst was demonstrated to show high catalytic activity and afford n -butyl levulinate with a yield of 94.6% under optimum conditions. Graphic Abstract
危险品化学品经营许可证（带存储）