Journal
JOURNAL OF ELECTROCERAMICS
Volume 33, Issue 3-4, Pages 239-245Publisher
SPRINGER
DOI: 10.1007/s10832-014-9956-7
Keywords
MoO2; MoS2; Graphene; Electrochemical properties; Lithium-ion batteries
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Funding
- University of Ulsan, Ulsan, Korea
- National Research Foundation of Korea [22A20130000138] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The electrochemical properties of MoO2-MoS2/graphene electrode were compared with those of MoO2-MoS2, bulk MoS2, and graphene electrode. MoO2-MoS2 composite was prepared by a hydrothermal reaction of molybdenum (VI) oxide with sodium sulfide. MoO2-MoS2/graphene composite was obtained by the mechanical mixing of prepared MoO2-MoS2 composite with graphene. MoO2-MoS2/graphene and graphene electrodes exhibited good cycling stability, while MoO2-MoS2 and bulk MoS2 electrodes showed a decrease of capacity during cycling. Especially, the MoO2-MoS2/graphene composite anode showed a high discharge capacity (974 mAh/g) after 20th cycle and superior high-rate capability. Such excellent reversible capability and cycle performance may be attributed to the good combination of MoO2, MoS2, and graphene.
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