TiO2-rGO nanocomposite hollow spheres: large scale synthesis and application as an efficient anode material for lithium-ion batteries

2017 ◽  
Vol 5 (45) ◽  
pp. 23853-23862 ◽  
Author(s):  
Aniruddha Mondal ◽  
Sandipan Maiti ◽  
Krishnadipti Singha ◽  
Sourindra Mahanty ◽  
Asit Baran Panda

A synthetic protocol for TiO2-rGO nanocomposite hollow spheres with excellent Li-storage capacity is developed.

2017 ◽  
Vol 254 ◽  
pp. 287-298 ◽  
Author(s):  
Zhiya Lin ◽  
Yanmin Yang ◽  
Jiamen Jin ◽  
Luya Wei ◽  
Wei Chen ◽  
...  

2011 ◽  
Vol 509 (20) ◽  
pp. 5969-5973 ◽  
Author(s):  
Fei Wang ◽  
Gang Yao ◽  
Minwei Xu ◽  
Mingshu Zhao ◽  
Zhanbo Sun ◽  
...  

2011 ◽  
Vol 197-198 ◽  
pp. 1113-1116 ◽  
Author(s):  
Wen Li Yao ◽  
Jin Qing Chen ◽  
An Yun Li ◽  
Xin Bing Chen

The platelike Co3O4/carbon nanofiber (CNF) composite materials were synthesized by the calcination of β-Co(OH)2/CNF precursor prepared by a surfactant-free hydrothermal method. As negative electrode materials for lithium-ion batteries, the platelike Co3O4/CNF composites can deliver a high reversible capacity of 900 mAh g-1 for a life extending over hundreds of cycles at a current density of 100 mA g-1. The high Li-storage capacity and excellent cycling performance for Co3O4/CNF composite materials may mainly attribute to the beneficial effect of the CNFs addition on enhancing structural stability and electrical conductivity of Co3O4 platelets.


Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1253 ◽  
Author(s):  
Huihui Zeng ◽  
Baolin Xing ◽  
Lunjian Chen ◽  
Guiyun Yi ◽  
Guangxu Huang ◽  
...  

A novel approach is developed to synthesize a nitrogen-doped porous Co3O4/anthracite-derived graphene (Co3O4/AG) nanocomposite through a combined self-assembly and heat treatment process using resource-rich anthracite as a carbonaceous precursor. The nanocomposite contains uniformly distributed Co3O4 nanoparticles with a size smaller than 8 nm on the surface of porous graphene, and exhibits a specific surface area (120 m2·g−1), well-developed mesopores distributed at 3~10 nm, and a high level of nitrogen doping (5.4 at. %). These unique microstructure features of the nanocomposite can offer extra active sites and efficient pathways during the electrochemical reaction, which are conducive to improvement of the electrochemical performance for the anode material. The Co3O4/AG electrode possesses a high reversible capacity of 845 mAh·g−1 and an excellent rate capacity of 587 mAh·g−1. Furthermore, a good cyclic stability of 510 mAh·g−1 after 100 cycles at 500 mA·g−1 is maintained. Therefore, this work could provide an economical and effective route for the large-scale application of a Co3O4/AG nanocomposite as an excellent anode material in lithium-ion batteries.


2018 ◽  
Vol 53 (11) ◽  
pp. 8499-8509 ◽  
Author(s):  
Ruiping Liu ◽  
Chao Shen ◽  
Chao Zhang ◽  
James Iocozzia ◽  
Qi Wang ◽  
...  

2020 ◽  
Vol 816 ◽  
pp. 152495 ◽  
Author(s):  
Feiming Chen ◽  
Zilong Chen ◽  
Ziyang Dai ◽  
Shaofeng Wang ◽  
Zhenbao Zhang ◽  
...  

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18467-18473 ◽  
Author(s):  
Xiaoqiao Chen ◽  
Zhiguang Cao ◽  
Lidan Xing ◽  
Youhao Liao ◽  
Yongcai Qiu ◽  
...  

In this paper, MnO2 nanoboxes coated with poly(3,4-ethylenedioxythiophene) film (denoted as MnO2@PEDOT) are investigated as an anode material in lithium-ion batteries.


2017 ◽  
Vol 5 (9) ◽  
pp. 4535-4542 ◽  
Author(s):  
Xiang Hu ◽  
Guang Zeng ◽  
Junxiang Chen ◽  
Canzhong Lu ◽  
Zhenhai Wen

H-SnO2@rGO with interconnected graphene encapsulating interior hollow SnO2 nanospheres is designed and fabricated, which shows outstanding lithium storage properties.


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