Sulfonated magnetic carbon nanoparticles (SMCNs) were synthesized from eucalyptus oil via co-pyrolysis with ferrocene and sulfonation by H₂SO₄. Catalytic performance of SMCNs for conversion of fructose to 5-hydroxymethylfurfural was examined within a designated range of reaction temperature (120–180 °C) and time (30–240 min). 84% conversion of fructose and 51.6% yield of 5-hydroxymethylfurfural could be achieved with catalyst-to-fructose mass ratio of 0.167 at 180 °C and the reaction time of 30 min. The magnetic property of SMCNs also facilitated recovery and recycling of the spent catalyst. Additionally, more than 50% yield of 5-hydroxymethylfurfural could be achieved after three cycles.

通过与二茂铁的共热解和H ₂ SO _4的磺化作用，从桉树油中合成了磺化的磁性碳纳米颗粒（SMCNs）。在指定的反应温度（120-180°C）和时间（30-240分钟）范围内，研究了SMCNs将果糖转化为5-羟甲基糠醛的催化性能。在180°C和30分钟的反应时间下，催化剂与果糖的质量比为0.167时，果糖的转化率为84％，5-羟甲基糠醛的产率为51.6％。SMCN的磁性还促进了废催化剂的回收和再循环。另外，在三个循环后，可以达到50％以上的5-羟甲基糠醛产率。