a SiO x -based anodes have attracted tremendous attention owing to their low cost, higher theoretical capacity than graphite and lower volume expansion than pure silicon. In this work, a simple and cost-effective two-step ball-milling method was proposed to fabricate Si/SiO x /C composites by using commercial SiO and graphite carbon as raw materials. The two-step ball-milling synthesis of the Si/SiO x /C composites can avoid the generation of an inert SiC phase and realize the uniform dispersion of Si/SiO x in graphite carbon, which offers good electrical conductivity and relieves the volume expansion of the Si/SiO x phase. Owing to the synergistic effect of the Si/SiO x phase and the graphite carbon, the typical Si/SiO x /C electrode exhibits a stable and high capacity of 726 mA h g À1 after 500 cycles at a current density of 0.1 A g À1 with a capacity retention of 82%. The two-step ball-milling preparation of the Si/SiO x /C composite provides a facile approach to fabricate high-performance SiO x -based anode materials.

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The enantioseparation of eight psychoactive drugs has been firstly performed on a coated cellulose‐based chiral stationary phase (Chiralcel OJ‐H). To obtain optimum separation conditions, the influences of alcohol modifiers and basic/acidic additives have been studied. As a result, except for the partial separation of oxybutynin enantiomers, the other seven drug enantiomers, including mirtazapine, sulpiride, promethazine, citalopram, oxazepam, donepezil, and cyamemazine, have been completely separated. Additionally, for gaining a better insight into the chiral recognition mechanisms, molecular docking was carried out using the Autodock software. Herein, binding energy and conformations of the chiral stationary phase complexes were provided, and it was found that the distinction in enantiomeric conformation determined the number and strength of intermolecular interactions between analytes and chiral stationary phase which resulted in the difference in binding energies of two enantiomers, and ultimately led to the different migration. These modeling results were in accordance with the observed enantioseparation results in high performance liquid chromatography experiments. At last, chiral separation mechanisms have been discussed in detail, and it has been confirmed that hydrogen bond, π–π, hydrophobic interactions, and some special interactions synergistically contributed to the enantioseparation of psychoactive drugs.