Without adding any additional solvent, the crystal water in the reactant provides a liquid environment directly for the reaction, allowing the whole reaction to be carried out safely and efficiently in a less-liquid reaction system. Furthermore, NiS2 in a cotton-like form was synthesized under the spatial effect of NaCl solution in a confined space. The fabricated material has a tight structure and abundant active sites, which promote rapid charge transport. This study provides a general strategy for preparing metal sulfides and suggests a new direction for improving electrochemical performance in less-liquid reaction systems without additional solvents.
Rechargeable magnesium batteries are expected to be the next generation of energy storage devices. Therefore, it is of great significance to develop low-cost and long-life magnesium (Mg) electrode materials. However, the traditional method of synthesizing electrode materials is complicated, and it is difficult to remove potentially dangerous impurities. In this study, without adding any additional solvent, the crystal water in the reactant provides a liquid environment directly for the reaction, such that the whole reaction could be carried out safely and efficiently in the less liquid reaction system. Furthermore, NiS2 in the cotton-like form was synthesized under the spatial effect of NaCl solution in a confined space. The fabricated material was tightly connected and has abundant active sites, which promote the rapid transport of charge. This work provides a general strategy of preparation methods for metal sulfides and also points in a new direction for the improvement of electrochemical performance with less-liquid reaction systems without additional solvents.
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