A Novel Red Phosphorus/Reduced Graphene Oxide-C3N4 Composite with Enhanced Sodium Storage Capability
作者：Kong WQ; Xu SF; Yin JP; Yang HN; Feng W; Cui LY; Wen ZS*
關鍵字：Sodium ion batteries; Red phosphorus/rGO-C3N4; Anode materials; Interfacial connection; Electrochemistry
論文來源：期刊
具體來源：Journal of Electroanalytical Chemistry
發表時間：2021年
Red phosphorus (RP) has attracted wide attention as a promising anode candidate for sodium ion batteries due to its admirable specific capacity, safe working potential and low cost. However, its large volumetric expansion during desodiation/sodiation process and poor electronic conductivity hinder the progress of red phosphorus electrodes. Here, the N-enriched reduced graphene oxide-C3N4 (rGO-C3N4) network is utilized to facilitate the electronic conductivity and construct a robust architecture through P-N bonds. Admirable bonding strength between phosphorus and the C3N4 hybrid framework is revealed by the calculations via the first principles based on density function theory. The red phosphorus/rGO-C3N4 anode for sodium ion batteries obtained via a facile ball-milling method exhibits a discharge capacity of 652.6 mA h g-1 after 100 cycles. This method holds great promise on developing red phosphorus anode on sodium-ion batteries.
https://doi.org/10.1016/j.jelechem.2021.115819
https://authors.elsevier.com/a/1d-Po5bbJ5fh58