FeMoO4 nanorods anchored on graphene sheets as a potential anode for high performance sodium ion batteries

• Published in: Journal of alloys and compounds Vol. 877; p. 160306
• Main Authors: Suresh babu, G.N., Shakkeel, N.K., Kalaiselvi, N.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 05.10.2021; Elsevier BV
• Subjects: Anode; Anodes; Cycles; Electrochemical analysis; Electrode materials; Energy; Graphene; Metal molybdate; Nanorods; Nanostructure; Sheets; Sodium; Sodium-ion batteries; Nanostructure; Sodium; Energy; Anode; Metal molybdate; Graphene
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2021.160306

•FMO nanorods is prepared by facile one‐pot hydrothermal method.•FMO/G anode delivers capacity of 294 mAh g−1 at 50 mA g−1 after 100 cycles.•FMO/G demonstrates stable cycling behaviour with almost 100% capacity retention after 1000 cycles at 0.5 A g−1.•Mechanical and structural integrity of the FMO/G electrode are encouraging. [Display omitted] Metal molybdate nanostructures hold great promise as better performing electrode material for sodium ion batteries. In this work, graphene encapsulated FeMoO4 nanorods have been prepared using a simple, facile, scalable and low-cost technique. The uniform distribution of homogeneous and well-defined FeMoO4 nanorods over graphene sheets is apparently evidenced by HR-TEM. The exclusively designed architecture effectively mitigates the severe volume changes associated with the conversion mechanism driven prolonged cycling along with the improved electronic conductivity of the electrode. As a result, FeMoO4/graphene composite anode exploited for the first time as an anode for SIBs exhibits excellent electrochemical performance in terms of high specific capacity (294 mAh g−1 at 50 mA g−1 after 100 cycles), good cycling stability (83% after 100 cycles) and an acceptable rate capability (110 mAh g−1 at 1000 mA g−1). More importantly, FeMoO4/Graphene composite anode demonstrates stable cycling behavior with almost 100% capacity retention even after 1000 cycles at 0.5 A g−1, which implies that the FeMoO4/G composite anode qualifies itself as a high performing anode material for sodium ion battery applications.