A series of magnetically separable catalysts based on Ru–Ni bimetallic compounds supported on Fe3O4 nanoparticles was prepared by the co-precipitation method. These catalysts were evaluated for diformyltricyclodecanes hydrogenation reactions, achieving 97% tricyclodecanedimethylol selectivity at 98% diformyltricyclodecanes conversion under mild conditions. The catalyst could be easily recovered by using the magnetic property of the iron oxide support. The catalysts were characterized with X-ray photoelectron spectroscopy, X-ray diffraction, and temperature-programmed reduction. These complementary characterization results suggested that the superior catalytic activity may be derived from the delicate synergy between Ru and Ni species.

中文翻译：

---

用于二甲酰基三环癸烷加氢制备高附加值精细化学品的磁分离 Fe3O4 负载 Ru-Ni 双金属催化剂

通过共沉淀法制备了一系列基于负载在 Fe3O4 纳米颗粒上的 Ru-Ni 双金属化合物的磁分离催化剂。对这些催化剂的二甲酰基三环癸烷加氢反应进行了评估，在温和条件下实现了 97% 三环癸烷二羟甲基选择性和 98% 二甲酰基三环癸烷转化率。利用氧化铁载体的磁性可以很容易地回收催化剂。用X射线光电子能谱、X射线衍射和程序升温还原对催化剂进行了表征。这些互补的表征结果表明，优越的催化活性可能源于 Ru 和 Ni 物种之间微妙的协同作用。