A Facile Synthesis of MoS2/g-C3N4 Composite as an Anode Material with Improved Lithium Storage Capacity
- 주제(키워드) MoS2 , g-C3N4 , MoS2 , g-C3N4 composite , anode materials , lithium-ion battery
- 주제(기타) Materials Science, Multidisciplinary
- 설명문(일반) [Ha Tran Huu; Kim Nguyen Van; Vien Vo] Quy Nhon Univ, Dept Chem, 170 An Duong Vuong, Quy Nhon 55100, Vietnam; [Xuan Dieu Nguyen Thi; Kim, Sung Jin] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted, Green Published, gold
- 발행기관 MDPI
- 발행년도 2019
- URI http://www.dcollection.net/handler/ewha/000000159676
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/ma12111730
- PubMed https://pubmed.ncbi.nlm.nih.gov/31141944
초록/요약
The demand for well-designed nanostructured composites with enhanced electrochemical performance for lithium-ion batteries electrode materials has been emerging. In order to improve the electrochemical performance of MoS2-based anode materials, MoS2 nanosheets integrated with g-C3N4 (MoS2/g-C3N4 composite) was synthesized by a facile heating treatment from the precursors of thiourea and sodium molybdate at 550 degrees C under N-2 gas flow. The structure and composition of MoS2/g-C3N4 were confirmed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis and elemental analysis. The lithium storage capability of the MoS2/g-C3N4 composite was evaluated, indicating high capacity and stable cycling performance at 1 C (Ag-1) with a reversible capacity of 1204 mAhg(-1) for 200 cycles. This result is believed the role of g-C3N4 as a supporting material to accommodate the volume change and improve charge transport for nanostructured MoS2. Additionally, the contribution of the pseudocapacitive effect was also calculated to further clarify the enhancement in Li-ion storage performance of the composite.
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