Platinum nanoparticles (NPs) were synthesized in situ in the ionic liquid (IL) [Emim]NTf₂ (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) as well as in mixtures of [Emim]NTf₂ with a second IL, Lewis acid or Brønsted acid, but in the absence of additional stabilizers. The resulting NP/IL systems catalyze the hydrodeoxygenation of a phenol under mild conditions (60 °C, 1.0 MPa H₂), achieving full substrate conversion and a high deoxygenation rate (over 95%) to cyclohexane and cyclohexene. The combination of [Emim]NTf₂ and [Bmim]PF₆ results in the best catalytic performance. Also the transformation of other substituted phenols and dimers such as catechol, guaiacol and diphenyl ether was studied in the Pt NP/[Emim]NTf₂–[Bmim]PF₆ system and in most cases afforded cyclohexane in good yield.

中文翻译：

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用于温和条件下生物衍生酚加氢脱氧的高效Pt纳米颗粒离子液体系统

铂纳米颗粒（NP）的合成在原位在离子液体（IL）[EMIM] NTF ₂（1-乙基-3-甲基咪唑鎓双（三氟甲基磺酰）亚胺），以及在[EMIM] NTF的混合物₂与第二IL ，路易斯酸或布朗斯台德酸，但在没有其他稳定剂的情况下。所得的NP / IL系统在温和的条件下（60°C，1.0 MPa H ₂）催化苯酚的加氢脱氧，实现了完全的底物转化和高脱氧率（超过95％）为环己烷和环己烯。[Emim] NTf ₂和[Bmim] PF _6的组合产生最佳的催化性能。在Pt NP / [Emim] NTf _2- [Bmim] PF ₆体系中，还研究了其他取代的酚和二聚体（例如邻苯二酚，愈创木酚和二苯醚）的转化，在大多数情况下，环己烷的收率很高。