纳米棒
材料科学
锂(药物)
化学工程
碳纤维
热液循环
阳极
铁
纳米复合材料
离子
磁铁矿
纳米技术
无机化学
化学
电极
复合数
有机化学
冶金
复合材料
内分泌学
工程类
物理化学
医学
作者
Ting Zhu,Jun Chen,Xiong Wen David Lou
摘要
In this work, we demonstrate a facile one-pot glucose-mediated hydrothermal method for the synthesis of ferric oxyhydroxide (FeOOH) rodlike nanoparticles. It is found that the presence of glucose not only facilitates the formation of FeOOH nanorods but also gives rise to a uniform, glucose-derived, carbon-rich polysaccharide (GCP) overlayer on the FeOOH nanorods. By varying the concentrations of ferric ion, the aspect ratios of these FeOOH nanorods can be readily tuned. The corresponding carbon-coated magnetite (Fe3O4@C) nanocomposites can be easily obtained by carbonizing the as-prepared GCP-coated FeOOH nanorods under inert atmosphere. These Fe3O4@C nanorods exhibit good cycling performance for lithium storage. Specifically, reversible capacities of as high as 808 mA h g–1 can be retained after 100 charge–discharge cycles, making them promising anode materials for lithium ion batteries.
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