石墨烯
介孔材料
锂(药物)
材料科学
阳极
离子
钠
多孔性
化学工程
无机化学
纳米技术
化学
电极
复合材料
物理化学
有机化学
催化作用
冶金
内分泌学
工程类
医学
作者
Yige Sun,Jie Tang,Kun Zhang,Xiaoliang Yu,Jinshi Yuan,Da‐Ming Zhu,Kiyoshi Ozawa,Lu‐Chang Qin
出处
期刊:RSC Advances
[The Royal Society of Chemistry]
日期:2021-01-01
卷期号:11 (54): 34152-34159
被引量:10
摘要
In this work, we synthesized micro-mesoporous graphene1-x (MoS2) x with different compositional ratios via co-reduction of graphite oxide and exfoliated MoS2 platelets. We systematically studied the performance of the micro-mesoporous graphene1-x (MoS2) x as anodes in lithium-ion batteries and sodium-ion batteries. The results show that the specific surface areas of the composites decrease with introducing MoS2. The irreversible capacitance, which is related to the formation of solid electrolyte interphases, also decreases. Besides specific surface area, we found that micropores can benefit the lithiation and sodiation. We demonstrated that a specific charge capacity of 1319.02 mA h g-1 can be achieved at the 50th cycle for the graphene½(MoS2)½ anode in lithium-ion batteries. Possible relationships between such a high specific capacity and the micro-mesoporous structure of the graphene1-x (MoS2) x anode are discussed. This work may shed light on a general strategy for the structural design of electrode materials in lithium-ion batteries and sodium-ion batteries.
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