Ali, Ghulam Mehmood, Asad Islam, Mobinul Akbar, Muhammad Kim, Hyung-Seok Jung, Hun-Gi Nam, Kyung-Wan Chung, Kyung Yoon 2024-01-19T16:01:21Z 2024-01-19T16:01:21Z 2021-09-02 2020-12-01 0272-8842 https://pubs.kist.re.kr/handle/201004/117705 High performance electrode materials are urgently needed for the commercialization of sodium-ion batteries (SIBs). In the current study, reduced graphene oxide (rGO) is investigated as a high-performance SIB anode material showing high capacity and stability. The rGO with its round sponge morphology has a large interlayer spacing that is highly desirable for enhanced sodium storage capacities. The rGO anode delivers an initial capacity of 330 mAh g(-1) at a rate of 50 mA g(-1) and delivers an initial capacity of 50 mAh g(-1) at a very high rate of 3200 mA g(-1). The reaction mechanism is elucidated using X-ray diffraction combined with transmission electron microscopy, and the results show that the high capacity of the rGO anode is due to the expansion of the interlayer spacing from 0.425 nm to 0.505 nm upon the sodiation process. Furthermore, our prepared rGO anode is tested in the full sodium-ion cell with NaFePO4 as the cathode, and the cell delivers a capacity of 90 mAh g(-1), indicating the suitability of the rGO anode for the realization of the economical and high-power performance potential of SIBs. English ELSEVIER SCI LTD HIGH-PERFORMANCE ANODE RATE CAPABILITY SODIUM CAPACITY NANOWIRES Entangled reduced graphene oxide nanosheets as an insertion anode with large interlayer spacing for high rate Na-ion batteries Article 10.1016/j.ceramint.2020.07.269 1 CERAMICS INTERNATIONAL, v.46, no.17, pp.27711 - 27716 CERAMICS INTERNATIONAL 46 17 27711 27716 scie scopus 000577586400142 2-s2.0-85089297432 Materials Science, Ceramics Materials Science Article HIGH-PERFORMANCE ANODE RATE CAPABILITY SODIUM CAPACITY NANOWIRES Full sodium-ion cell Interlayer spacing Reduced graphene oxide Reaction mechanism Sodium storage