Graphene‐Rich Wrapped Petal‐Like Rutile TiO₂ tuned by Carbon Dots for High‐Performance Sodium Storage

Carbon dots inducing petal-like rutile TiO2 wrapped by ultrathin graphene-rich layers are proposed to fabricate superior anodes for sodium-ion batteries, featuring high-rate capabilities and long-term cyclelife, benefiting from promoted electron transport and a shortened Na+ diffusion length. High capacities of 144.4 mA h g−1 (at 837.5 mA g−1) after 1100 cycles and 74.6 mA h g−1 (at 3350 mA g−1) after 4000 cycles are delivered outstandingly. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.