A systematic study on the synthesis of α-Fe2O3 multi-shelled hollow spheres

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10304-10309 ◽  
Author(s):  
Zahra Padashbarmchi ◽  
Amir Hossein Hamidian ◽  
Hongwei Zhang ◽  
Liang Zhou ◽  
Nematolah Khorasani ◽  
...  

Well-defined α-Fe2O3 multi-shelled hollow spheres have been fabricated by a facile spray drying method. The resulting material exhibits high reversible capacity and good cycling performance in lithium storage.

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52993-52997 ◽  
Author(s):  
Hongbo Geng ◽  
Shuangshuang Li ◽  
Yue Pan ◽  
Yonggang Yang ◽  
Junwei Zheng ◽  
...  

The PH-Fe3O4@C/Cl spheres were successfully fabricated through a novel and controllable route, which could deliver superior lithium storage performance in terms of high reversible capacity, stable cycling and rate performances.


2015 ◽  
Vol 3 (7) ◽  
pp. 3257-3260 ◽  
Author(s):  
Xiu Li ◽  
Jiantie Xu ◽  
Lin Mei ◽  
Zhijia Zhang ◽  
Chunyu Cui ◽  
...  

Due to the advantages of their structure and component, the as-synthesized electrospun MoO3@C nanofibers could maintain a high reversible capacity of 623 and 502 mA h g−1 after 100 cycles at 500 and 1000 mA g−1, respectively.


2017 ◽  
Vol 46 (4) ◽  
pp. 1260-1265 ◽  
Author(s):  
Yuanyuan Liu ◽  
Jiantao Zai ◽  
Xiaomin Li ◽  
Zi-feng Ma ◽  
Xuefeng Qian

Al2O3coated Ni3S4nanoparticles have been designed to promote thein situconversion of Ni3S4, by confining the formed polysulfides within the Al2O3layer; these nanoparticles exhibit a high reversible capacity of 651.6 mA h g−1at 500 mA g−1, even after 400 cycles.


2016 ◽  
Vol 4 (44) ◽  
pp. 17419-17430 ◽  
Author(s):  
Ramchandra S. Kalubarme ◽  
Akbar I. Inamdar ◽  
D. S. Bhange ◽  
Hyunsik Im ◽  
Suresh W. Gosavi ◽  
...  

This is the first report on the use of metal titanate (NiTiO3), in the form of ultrafine nanoparticles, as an anode material for Na-ion rechargeable batteries. NiTiO3 was prepared using a simple and economical hydrothermal process, and the ultrafine nanoparticles exhibited a high reversible capacity and an excellent cycling performance.


2019 ◽  
Vol 72 (6) ◽  
pp. 473 ◽  
Author(s):  
Zongkai Yue ◽  
Yaozu Kang ◽  
Tianyu Mao ◽  
Mengmeng Zhen ◽  
Zhiyong Wang

Titanium dioxide (TiO2) has been widely investigated as the electrode material for lithium ion batteries (LIBs), due to its low cost, small volume expansion, and high environmental friendliness. However, the fading capacity and short cycle life during the cycling process lead to poor cycling performance. Herein, multilayer TiO2 nanobelts with a high specific surface area and with many pores between nanoparticles are constructed via a simple and large-scale approach. Benefiting from the multilayer nanobelt structure, as-prepared TiO2 nanobelts deliver a high reversible capacity, strong cycling stability, and ultra-long cycle life (~185mAhg−1 at 500mAg−1 after 500 cycles) as electrode materials for LIBs.


2015 ◽  
Vol 3 (8) ◽  
pp. 4180-4187 ◽  
Author(s):  
Xiao Yan ◽  
Yanjuan Li ◽  
Malin Li ◽  
Yongcheng Jin ◽  
Fei Du ◽  
...  

A TiO2–bronze/N-doped graphene nanocomposite was prepared by a facile method. The material exhibits outstanding rate capacity. A high reversible capacity of 101.6 mA h g−1 is obtained at the 100C rate, indicating its great potential for use in high power lithium ion batteries.


2015 ◽  
Vol 8 (12) ◽  
pp. 3531-3538 ◽  
Author(s):  
Jun Liu ◽  
Peter Kopold ◽  
Chao Wu ◽  
Peter A. van Aken ◽  
Joachim Maier ◽  
...  

Uniform yolk–shell Sn4P3@C nanospheres exhibit very high reversible capacity, superior rate capability and stable cycling performance for Na-ion batteries.


2020 ◽  
Vol 12 (4) ◽  
pp. 486-491
Author(s):  
Jinlei Wang ◽  
Na Cao ◽  
Huiling Du ◽  
Xian Du ◽  
Hai Lu ◽  
...  

Metal-organic frameworks (MOFs) have recently emerged as promising electrode materials for lithium-ion batteries (LIBs). However, poor electrical conductivity in most MOFs limits their electrochemical performance. In this work, the integration of flaky cobalt 1,4-benzenedicarboxylate (Co-BDC) MOF with conductive polypyrrole (PPy) nanofibers via in-situ growth strategy was explored for developing novel anode materials for LIBs. Electrochemical studies showed that PPy/Co-BDC composites exhibited enhanced cycling performance (a reversible capacity of ca. 364 mA h g–1 at a current density of 50 mA g–1 after 100 cycles) and rate capability, com- pared with the pristine Co-BDC. The well dispersion of Co-BDC on polypyrrole nanofibers and the decrease in charge-transfer resistance of the composite electrodes accounted for the improvement of electrochemical properties.


2018 ◽  
Vol 54 (12) ◽  
pp. 1413-1416 ◽  
Author(s):  
Weifeng Zhang ◽  
Tan Xu ◽  
Zhenwei Liu ◽  
Nae-Lih Wu ◽  
Mingdeng Wei

TiO2−x/GQDs with large specific surface areas and better electrical conductivity facilitate ion diffusion and electron transportation, leading to a high reversible capacity and a superior rate capability.


Ionics ◽  
2016 ◽  
Vol 23 (2) ◽  
pp. 405-410 ◽  
Author(s):  
Mingru Su ◽  
Yunjian Liu ◽  
Huafeng Wan ◽  
Aichun Dou ◽  
Zhixing Wang ◽  
...  

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