A systematic investigation into the influencing factors of nanosized catalytic graphitization and their impact on lithium-ion storage performance

Carbon nanomaterials have generated significant interest across various research fields, with catalytic graphitization emerging as a persistent topic within the carbon family. Graphitic carbon derived from carbon dots exhibits considerable potential for applications in energy storage devices. This study discusses the critical factors influencing the formation of nanosized carbon dots during the catalytic graphitization process, as well as the relationship between the degree of graphitization and lithium-ion storage performance. The results indicate that an increased sintering temperature, reduced particle size, and the incorporation of catalysts are advantageous for enhancing the degree of graphitization. A higher degree of graphitization is associated with a lower irreversible capacity loss for lithium ions, improved plateau capacity, and extended cycling stability at low current densities. This work offers valuable strategies for regulating both the degree of graphitization in nanocarbons and their corresponding lithium-ion storage capacities.