Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 42, Pages 24557-24568Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta08839c
Keywords
-
Funding
- National Research Foundation of Korea (NRF) - Korean Government [2017R1C1B2012700, 2017R1A2A2A05020947]
- BK21 plus program through the NRF - Ministry of Education of Korea
- National Research Foundation of Korea [2017R1C1B2012700, 2017R1A2A2A05020947] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Achieving hierarchically uniform surface manipulated nanostructured materials is important to accomplish high performance storage devices, but it is still challenging. Herein, we successfully synthesized a vertically-aligned interlayer-expanded caterpillar-like heterostructure consisting of MoS2@C nanosheets (NSs) over MoS2 nanorods (NRs) (MoS2@C@MoS2) as an advanced anode material for sodium-ion batteries (SIBs). Step-wise ramp rate tuned MoS2 nanorods (NRs) were achieved via surface sulfurization of MoO3 NRs by a vapor phase ion-exchange method. Heterointerphased MoS2@C nanosheets performed a crucial role in enacting an excellent electrochemical performance by facilitating better Na+ ion diffusion and faster electron transport. The hierarchical MoS2@C@MoS2 electrode delivered a high specific capacity of 434 mA h g(-1) (after 100 cycles at 100 mA g(-1)) and excellent cycling stability (352 mA h g(-1) after 200 cycles at 1000 mA g(-1)). Kinetic analysis revealed that an enhanced sodium storage performance of the MoS2@C@MoS2 electrode could be accompanied by an ameliorated capacitive contribution reaction. Moreover, the sodium-ion full cell assembled with the MoS2@C@MoS2 anode and a Na3V2(PO4)(2)F-3 cathode exhibited a high specific capacity of 320 mA h g(-1) with good capacity retention.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available