Hydrophobic ionic liquid tuning hydrophobic carbon to superamphiphilicity for reducing diffusion resistance in liquid-liquid catalysis systems
Hydrophobic ionic liquid tuning hydrophobic carbon to superamphiphilicity for reducing diffusion resistance in liquid-liquid catalysis systems
复制标题
疏水性离子液体将疏水性碳调节为超两亲性，以降低液-液催化系统中的扩散阻力
DOI：
10.1016/j.chempr.2021.03.014
复制
发表时间：
2021-07-08
期刊：
影响因子：
23.5
通讯作者：
Jiang, Lei
中科院分区：
文献类型：
--
作者：
Fan, Honglei;Wang, Jingxia;Jiang, Lei
设计超临界表面以提高反应效率已引起人们的关注。在此，我们报道了一种独特的策略，即疏水性的双（三氟甲基）磺酰亚胺（NTf 2）基离子液体可以通过一步法大规模地同时使疏水碳具有超亲水性和超亲油性。润湿性机制表明，所制备的碳的超亲水性主要归因于NTf 2阴离子热解产生的吡啶氮氧化物，而碳的超亲油性则由元素C和F提供。此外，超两亲性碳可以极大地消除扩散阻力，从而通过在催化剂周围快速富集反应物和增加相界面面积来提高液-液体系中的反应效率。该工作为构建超两亲性碳提供了一条通用的途径，可以大大提高反应效率。
Designing superwettable surfaces for enhancing the reaction efficiencies has been being attracted attention. Herein, we report a distinct strategy that hydrophobic bis((trifluoromethyl)sulfonyl)imide (NTf2)-based ionic liquids can endowhydrophobic carbon with superhydrophilicity and superoleophilicity simultaneously via a one-step method in a large scale. Wettability mechanisms demonstrate that superhydrophilicity of the as-prepared carbon is mainly attributed to pyridinic N-oxide from the thermolysis of the NTf2 anion, whereas superoleophilicity of the carbon is provided by the elements C and F. Furthermore, superamphiphilic carbon can greatly eliminate the diffusion resistance thereby enhancing the reaction efficiencies in liquid-liquid systems by rapid enrichment of reactants around catalysts and increasing phase interfacial areas. This work provides a general route to construct superamphiphilic carbon that can greatly enhance the reaction efficiencies.