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Preparation of Nickel Cobalt Sulfide Hollow Nanocolloids with Enhanced Electrochemical Property for Supercapacitors Application

机译:电化学性能增强的硫化镍钴空心纳米胶体的制备及其在超级电容器中的应用

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摘要

Nanostructured functional materials with hollow interiors are considered to be good candidates for a variety of advanced applications. However, synthesis of uniform hollow nanocolloids with porous texture via wet chemistry method is still challenging. In this work, nickel cobalt precursors (NCP) in sub-micron sized spheres have been synthesized by a facile solvothermal method. The subsequent sulfurization process in hydrothermal system has changed the NCP to nickel cobalt sulfide (NCS) with porous texture. Importantly, the hollow interiors can be tuned through the sulfurization process by employing different dosage of sulfur source. The derived NCS products have been fabricated into supercapacitor electrodes and their electrochemical performances are measured and compared, where promising results were found for the next-generation high-performance electrochemical capacitors.
机译:具有中空内部的纳米结构功能材料被认为是各种高级应用的良好选择。然而,通过湿化学方法合成具有多孔质地的均匀的中空纳米胶体仍然具有挑战性。在这项工作中,已通过简便的溶剂热法合成了亚微米尺寸的镍钴前体(NCP)。水热系统中随后的硫化过程已将NCP更改为具有多孔质构的硫化镍钴(NCS)。重要的是,中空内部可以通过采用不同剂量的硫源通过硫化过程进行调整。衍生的NCS产品已制成超级电容器电极,并对其电化学性能进行了测量和比较,在下一代高性能电化学电容器中发现了可喜的结果。

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