Two-dimensional ultrathin ZnCo2O4 nanosheets: general formation and lithium storage application

2015 ◽  
Vol 3 (18) ◽  
pp. 9556-9564 ◽  
Author(s):  
Youqi Zhu ◽  
Chuanbao Cao ◽  
Junting Zhang ◽  
Xingyan Xu

2D multicomponent transition-metal oxide nanosheets are synthesized on a large scale via a general method. Ultrathin ZnCo2O4 nanosheets exhibit high lithium storage capacity, excellent cycling stability, and good high-rate capability.

2020 ◽  
Vol 10 (17) ◽  
pp. 1904092 ◽  
Author(s):  
Wooyoung Jin ◽  
Seungjun Myeong ◽  
Jaeseong Hwang ◽  
Haeseong Jang ◽  
Jaekyung Sung ◽  
...  

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7761-7770 ◽  
Author(s):  
Muhammad Tahir ◽  
Liang He ◽  
Waqas Ali Haider ◽  
Wei Yang ◽  
Xufeng Hong ◽  
...  

Microstructuring of the PEDOT–CNT composite for microsupercapacitors with high rate capability and excellent cycling stability.


Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 520-531 ◽  
Author(s):  
Dongdong Wang ◽  
Zhongqiang Shan ◽  
Jianhua Tian ◽  
Zheng Chen

Ultrathin mesoporous Li4Ti5O12 nanosheets, which offer high capacity, high rate capability and excellent cycling stability, were synthesized in a controlled fashion.


2015 ◽  
Vol 3 (9) ◽  
pp. 5054-5059 ◽  
Author(s):  
Chang Yu ◽  
Meng Chen ◽  
Xiaoju Li ◽  
Changtai Zhao ◽  
Lianlong He ◽  
...  

Hierarchically porous carbon architectures composed of a micro-sized porous carbon sphere matrix embedded with hollow nanocapsules are configured, demonstrating a large capacity and an ultra-high rate capability in lithium ion batteries.


2014 ◽  
Vol 809-810 ◽  
pp. 837-841 ◽  
Author(s):  
Yun Fei Long ◽  
Qing Hua Xiao ◽  
Jing Su ◽  
Yi Ju Lv ◽  
Xiao Yan Lv ◽  
...  

Li3V2(PO4)3/C is prepared by sol-gel combined with ball milling method (SG-BM). The composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), C-S analysis and galvanostatic charge/discharge measurements. The structural characterization shows that the composite prepared by SG-BM is composed of the well crystallized Li3V2(PO4)3 with the space group P21/n and 6.2 wt.% amorphous carbon. SEM and TEM results show that the prepared composite has uniform size distribution with the narrow range of 0.5-1.5μm, and its surface is covered by a smooth and uniform carbon layer with thickness of about 10nm. Galvanostatic charge/discharge measurements indicate that the composite exhibits high rate capability and excellent cycling stability. The prepared composite delivers a discharge capacity of 131.1mAh/g, 128.9mAh/g, 122.6mAh/g and 113.8mAh/g at 0.5C, 1C, and 10C, respectively. The capacity retention of 100% is achieved after 50 cycles at 1C. This outstanding electrochemical capability is attributed to the ultrafine particles with narrow size distribution and the well-covered carbon layer with proper thickness.


Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17942-17948 ◽  
Author(s):  
Pengfei Gao ◽  
Yang Zhang ◽  
Xi Chen ◽  
Zhifeng Wu ◽  
Quan Zhang ◽  
...  

Two-dimensional (2D) nanostructures with high specific capacity and high rate capability have attracted extensive attention due to their promising applications as anode materials for rechargeable ion batteries.


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