Development of binder–free Ni3S2/CoS2 nano–composite as electrode material for energy storage application

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-09-27 DOI:10.1016/j.ceramint.2024.09.332

Nigarish Bano , Syed Imran Abbas Shah , Abdus Sami , Muhammad Ali , Razan A. Alshgari , Saikh Mohammad , Muhammad Shuaib Khan , Muhammad Faheem Ashiq

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Abstract

Global energy crisis imposes immense obstacles leading towards development of innovative devices, and supercapacitors (SCs) are thought to be a viable energy storage technology. The engineering of nanostructured materials with a distinct and consistent morphological design is seen as a better option for various range of electrochemical energy sources. This study reports novel binder-free Ni₃S₂/CoS₂ electrode material that acquires higher energy, higher energy density, as well as its simple preparation method, low cost, and earth–abundant resources. The morphological, structural, and textural characteristics resulted in surface area of 46 m² g⁻¹ of Ni₃S₂/CoS₂ that will increase active sites also. The synthesized nanocomposite has particle size of 41.1 nm that leads to enhanced active sites and greater surface area as confirmed through BET analysis. Ni₃S₂/CoS₂ nanocomposite has high specific capacity around 828.14 F g⁻¹ at 5 mV s⁻¹ sweep rate using 2 M KOH, a high energy density around 115.01 Wh kg⁻¹, and power density of 1000 Wh kg⁻¹. Ni₃S₂/CoS₂ acquires higher ionic conductivity of 5 S m⁻¹, this will enhance the inter-layer transference of electrons, and these results perfectly correlates with EIS, resulting in charge transfer resistance value of 0.9 Ω for nano-composite. These enhanced electrochemical capabilities of Ni₃S₂/CoS₂ hold significant potential in practical viability.

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开发作为储能应用电极材料的无粘结剂 Ni3S2/CoS2 纳米复合材料

全球能源危机给创新设备的开发带来了巨大障碍，而超级电容器（SC）被认为是一种可行的储能技术。具有独特、一致形态设计的纳米结构材料被认为是各种电化学能源的更好选择。本研究报道了新型无粘结剂 Ni3S2/CoS2 电极材料，它具有更高的能量、更高的能量密度，以及制备方法简单、成本低廉和地球资源丰富等优点。从形态、结构和纹理特征来看，Ni3S2/CoS2 的表面积为 46 m2 g-1，这也将增加活性位点。合成的纳米复合材料的粒径为 41.1 nm，这使得活性位点增加，比表面积增大，BET 分析证实了这一点。Ni3S2/CoS2 纳米复合材料在使用 2 M KOH 的 5 mV s-1 扫频条件下具有约 828.14 F g-1 的高比容量、约 115.01 Wh kg-1 的高能量密度和 1000 Wh kg-1 的功率密度。Ni3S2/CoS2 获得了 5 S m-1 的较高离子电导率，这将增强层间电子转移，这些结果与 EIS 完全吻合，从而使纳米复合材料的电荷转移电阻值达到 0.9 Ω。这些增强的 Ni3S2/CoS2 电化学能力在实际应用中具有巨大的潜力。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.