论文标题
二抗/还原石墨烯氧化石墨烯纳米复合材料作为MG-ION电池的高容量阳极材料的原位合成
In-situ Synthesis of Bismuth/Reduced Graphene Oxide Nanocomposites as High Capacity Anode Materials for Mg-ion Battery
论文作者
论文摘要
在此，在氮气中，通过溶不能热方法进行了鞭毛和氧化石墨烯的原位还原，并将所得的RGO纳米复合材料上的BI用作MG-ION电池的阳极材料。 60％BI：40％RGO的纳米复合材料是有益的阳极材料，在第1和50个周期中，分别在每克39 mA的特定电流下，排放能力高达413和372 mAh。此外，它在53、100、200、500和700 mA的特异性电流中显示出高速功能，其排放能力分别为381、372、354、295和238 mAh。纳米复合材料的更好的电化学性能是由于电子电导率的提高和电化学循环过程中体积变化的显着减少所致。这项研究表明，对氧化石墨烯（RGO）纳米复合材料的降低，作为镁离子电池的有希望的高容量阳极，具有较长的生命周期和高率性能。
Herein, in-situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a nitrogen atmosphere, and the resulting Bi on RGO nanocomposites were used as an anode material for Mg-ion batteries. The nanocomposite of 60% Bi:40% RGO is a beneficial anode material, delivering a discharge capacity as high as 413 and 372 mAh per g at the specific current of 39 mA per g in the 1st and 50th cycles, respectively. In addition, it shows high-rate capability with the discharge capacities of 381, 372, 354, 295, and 238 mAh per g at the specific currents of 53, 100, 200, 500, and 700 mA per g, respectively. The better electrochemical performance of the nanocomposite is due to improvement in the electronic conductivity and significant reduction of volume changes during electrochemical cycling. This study demonstrates the bismuth (Bi) on reduced graphene oxide (RGO) nanocomposite as a promising high-capacity anode for magnesium-ion batteries with longer life cycle and high-rate performance.
