纳米棒
材料科学
锂(药物)
公式单位
扫描电子显微镜
透射电子显微镜
结晶学
离子
纳米技术
电化学
阳极
分析化学(期刊)
物理
晶体结构
化学
复合材料
量子力学
电极
色谱法
内分泌学
医学
作者
Lei Hu,Chunfu Lin,Changhao Wang,Chao Yang,Jianbao Li,Yongjun Chen,Shiwei Lin
标识
DOI:10.1142/s1793604716420042
摘要
TiNb 2 O 7 nanorods have been successfully fabricated by a sol–gel method with a sodium dodecyl surfate (SDS) surfactant. X-ray diffraction indicates that the TiNb 2 O 7 nanorods have a Ti 2 Nb[Formula: see text]O[Formula: see text]-type crystal structure. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results show that the nanorods have an average diameter of [Formula: see text][Formula: see text]100[Formula: see text]nm and an average length of [Formula: see text][Formula: see text]300[Formula: see text]nm. As a result of such nanosizing effect, this new material exhibits advanced electrochemical performances in terms of specific capacity, rate capability and cyclic stability. At 0.1[Formula: see text]C, it delivers a large first-cycle discharge/charge capacity of 337/279 mAh g[Formula: see text]. Its capacities remain 248, 233, 214, 182, 154 and 122[Formula: see text]mAh g[Formula: see text] at 0.5, 1, 2, 5, 10 and 20[Formula: see text]C, respectively. After 100 cycles, its capacity at 10[Formula: see text]C remains 140[Formula: see text]mAh g[Formula: see text] with large capacity retention of 91.0%.
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