Carbon based nanomaterials are acknowledged for their admirable optical, electrical, mechanical characteristics and broad class of applications. Choice of precursor and simple synthesis techniques have decisive roles in viable production and commercialization of carbon produce. The intense demand to develop high purity carbon nanomaterials through inexpensive techniques has promoted usage of fossil derivatives as feasible source of carbon. Coal serves as a naturally available, abundant and cheap feedstock for carbon materials. From the crystalline clusters of aromatic hydrocarbons in a cross-linked network, carbon nanostructures can easily be extracted through green synthesis routes. It promotes a potent alternative for the cost effective and scaled up production of nanocarbon. The well-developed pores distribution, presence of numerous active sites and appropriate migration channels for ions enhance the electrochemical parameters necessary for the fabrication of supercapacitors, batteries and electrochemical sensors. The metallic impurities contained in coal contribute towards faradic redox reactions required for an efficient electrode modification. In this review, the potential uses of coal based carbon nanomaterials in energy storage and environmental sectors are discussed in detail.

碳基纳米材料以其令人钦佩的光学，电气，机械特性和广泛的应用而著称。前体的选择和简单的合成技术在可行的生产和碳产品的商业化中起着决定性的作用。通过廉价技术开发高纯度碳纳米材料的强烈需求促进了化石衍生物作为可行碳源的使用。煤炭是碳材料的天然来源，丰富而廉价的原料。从交联网络中的芳烃晶体簇中，可以轻松地通过绿色合成路线提取碳纳米结构。它为经济高效和大规模生产纳米碳提供了有效的替代方法。毛孔分布发达 离子存在大量活性位点和适当的迁移通道会增强制造超级电容器，电池和电化学传感器所需的电化学参数。煤中所含的金属杂质有助于有效修饰电极所需的法拉第氧化还原反应。在这篇评论中，详细讨论了煤基碳纳米材料在能源存储和环境领域的潜在用途。