Emissions of natural gas and carbon dioxide due to fossil fuels have become a global issue which influences the development of various technologies. Demand for clean renewable power sources is ever increasing. However, renewable sources are intermittent in nature, which poses a challenge in electricity generation and power load stability. Lately, supercapacitors have attracted remarkable interest in the field of electricity storage due to their ability to store large amounts of electric charge, enabling high power output. Reduced graphene oxide incorporated with titanium dioxide (rGO/TiO₂) nanocomposites are well considered as potential supercapattery materials due to their superior mechanical properties, notable strength, and abundance in Nature. rGO carbon material acts as the ion reservoir, facilitating faster electron transfer mobility, whereas mesoporous TiO₂ provides a larger surface area and more active sites, which improve the cycling stability and specific capacitance. Literature reports that supercapacitor performance mainly depends on the choice of the electroactive material, electrolyte, and current collector. This review focuses on recent developments in supercapacitor technology, storage mechanisms of different electrodes, a comprehensive discussion of different challenges related to energy storage devices, as well as the formation mechanism of rGO/TiO₂ hybrid electrodes.

化石燃料导致的天然气和二氧化碳排放已经成为影响各种技术发展的全球性问题。清洁可再生能源的需求正在不断增长。然而，可再生能源本质上是断断续续的，这对发电和电力负载的稳定性提出了挑战。近来，由于超级电容器具有存储大量电荷，实现高功率输出的能力，因此在储电领域引起了极大的兴趣。还原的氧化石墨烯与二氧化钛（rGO / TiO ₂纳米复合材料因其优异的机械性能，显着的强度和丰富的自然界特性而被广泛认为是潜在的超级电池材料。rGO碳材料充当离子库，促进更快的电子转移迁移率，而介孔TiO ₂提供更大的表面积和更多的活性位点，从而改善了循环稳定性和比电容。文献报道，超级电容器的性能主要取决于电活性材料，电解质和集电器的选择。这篇综述着重于超级电容器技术的最新发展，不同电极的存储机制，与能量存储设备有关的不同挑战的全面讨论以及rGO / TiO ₂的形成机理 混合电极。