Low-temperature preparation of ultrathin nanoflakes assembled tremella-like NiO hierarchical nanostructures for high-performance lithium-ion batteries

被引：16
作者：
Hu, Lingling
Qu, Baihua
Chen, Libao
Li, Qiuhong [1 ]
机构：
[1] Hunan Univ, Minist Educ, Key Lab Micronano Optoelect Devices, Changsha 410082, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2013年 / 108卷
基金：
中国国家自然科学基金;
关键词：
Energy storage and conversion; Structural; NiO; Nanoflakes; Porous materials; Lithium-ion batteries; FABRICATION; NANOSHEETS; SPHERES; SNO2;
D O I：
10.1016/j.matlet.2013.06.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tremella-like NiO hierarchical nanostructures with ultrathin porous nanoflakes had obtained by annealing the Ni-3(NO3)(2)(OH)(4) precursor, which was synthesized via a facile hydrothermal method at low temperature (90 degrees C). The as-prepared hierarchically porous tremella-like NiO nanostructures exhibited a large specific surface area and multiple pore size distribution, which could effectively increase the electrochemical reaction area and allow better penetration of the electrolyte. The initial discharge and charge capacities were 1374 and 1091 mA h g(-1), respectively. The capacity maintained at 830 mA h g(-1) after 30 cycles was 0.1 C (1 C=718 mA g(-1)). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：92 / 95
页数：4
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