College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China.
Recent Pat Nanotechnol. 2021;15(4):298-309. doi: 10.2174/1872210515666210120115159.
As an emerging carbon nanomaterial, Graphene Quantum Dots (GQDs) have shown great potential application in new energy storage devices due to their unique small size effect and abundant edge active sites. This work introduces the main synthesis strategies of GQDs, which include top-down and bottom-up methods; the application examples of GQDs and GQDsbased composites in energy storage are reviewed, moreover, the unique advantages of GQDs in supercapacitors, Lithium-Ion Batteries (LIBs) and Lithium-sulfur batteries (Li-S batteries) are highlighted. The problems and development prospects in this growing area are also discussed.
We conducted a detailed search of "the application of GQDs in energy storage devices" in the published papers and the public patents based on the Web of Science database in the period from 2014 to 2020. The corresponding literature was carefully evaluated and analyzed.
Sixty papers and twenty-eight recent patents were included in this mini-review. The significant advances in recent years are summarized with comparative and balanced discussion. Thanks to the unique properties of large specific surface area, high conductivity and abundant active sites, GQDs have unparalleled potential application for new energy storage, especially improving the specific capacity and cycle stability of supercapacitors, LIBs and Li-S batteries.
The findings of this mini-review confirm the importance of GQDs, show the enhanced electrochemical performance in supercapacitors, LIBs and Li-S batteries, and also provide a helpful guide to design and fabricate high-efficiency electrode materials.
作为一种新兴的碳纳米材料，石墨烯量子点（GQDs）由于其独特的小尺寸效应和丰富的边缘活性位点，在新型储能器件中显示出巨大的潜在应用。本文介绍了 GQDs 的主要合成策略，包括自上而下和自下而上的方法；综述了 GQDs 及其基于 GQD 的复合材料在储能方面的应用实例，此外，还强调了 GQDs 在超级电容器、锂离子电池（LIBs）和锂硫电池（Li-S 电池）中的独特优势。还讨论了该不断发展领域中的问题和发展前景。
我们基于 Web of Science 数据库，对 2014 年至 2020 年期间发表的论文和公开专利中“GQDs 在储能器件中的应用”进行了详细检索。对相应的文献进行了仔细评估和分析。
该小型综述共纳入 60 篇论文和 28 篇最新专利。对近年来的显著进展进行了总结，并进行了比较和平衡的讨论。由于具有大比表面积、高导电性和丰富活性位点等独特性质，GQDs 在新能源储能领域具有无与伦比的潜在应用，特别是提高了超级电容器、LIBs 和 Li-S 电池的比容量和循环稳定性。
本小型综述的研究结果证实了 GQDs 的重要性，展示了其在超级电容器、LIBs 和 Li-S 电池中增强的电化学性能，为设计和制备高效电极材料提供了有益的指导。
