Affiliation:
1. State Key Laboratory of Marine Resource Utilization in South China Sea, College of Materials and Chemical Engineering, Hainan University, Haikou 570228, P. R. China
Abstract
TiNb2O7 nanorods have been successfully fabricated by a sol–gel method with a sodium dodecyl surfate (SDS) surfactant. X-ray diffraction indicates that the TiNb2O7 nanorods have a Ti2Nb[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%.
Funder
National Natural Science Foundation of China
Provincial Natural Science Foundation of Hainan
Publisher
World Scientific Pub Co Pte Lt
Subject
General Materials Science
Cited by
27 articles.
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