Nanoporous gyroid Ni/NiO/C nanocomposites from block copolymer templates with high capacity and stability for lithium storage

2018 ◽  
Vol 6 (28) ◽  
pp. 13676-13684 ◽  
Author(s):  
Chung-Fu Cheng ◽  
Yu-Ming Chen ◽  
Feng Zou ◽  
Kai-Chieh Yang ◽  
Tzu-Ying Lin ◽  
...  

Nanoporous gyroid Ni/NiO/C nanocomposite electrodes exhibited good cycling stability over 1000 cycles at 1 A g−1 with a specific capacity of 800 mA h g−1.

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.


2020 ◽  
Vol 56 (55) ◽  
pp. 7629-7632 ◽  
Author(s):  
Xiaoyu Wu ◽  
Chen Qian ◽  
Huayu Wu ◽  
Lin Xu ◽  
Lingli Bu ◽  
...  

Based on the confined growth strategy and hydrogen thermal reduction, we constructed and synthesized uniform yolk–shell structured Sn@NHMCSs, which exhibit high specific capacity and good cycling stability as an anode material in lithium ion batteries.


2015 ◽  
Vol 8 (5) ◽  
pp. 1480-1483 ◽  
Author(s):  
Han Hu ◽  
Le Yu ◽  
Xuehui Gao ◽  
Zhan Lin ◽  
Xiong Wen (David) Lou

Hierarchical tubular structures constructed from ultrathin TiO2(B) nanosheets show excellent electrochemical lithium storage properties with a high capacity, excellent rate capability and cycling stability.


CrystEngComm ◽  
2019 ◽  
Vol 21 (41) ◽  
pp. 6186-6195 ◽  
Author(s):  
Qian-Qian Liu ◽  
Ke-Fen Yue ◽  
Xian-Jun Weng ◽  
Yao-Yu Wang

The Cd-MOF shows high luminescence sensing for Cu2+ and nitrobenzene. The Cd-MOF electrode exhibits high specific capacity and good cycling stability.


2019 ◽  
Vol 7 (37) ◽  
pp. 21270-21279 ◽  
Author(s):  
Yanmin Qin ◽  
Zhongqing Jiang ◽  
Liping Guo ◽  
Jianlin Huang ◽  
Zhong-Jie Jiang ◽  
...  

N, S co-doped carbon coated MnOS (MnOS@NSC) has been demonstrated to be a potential anode material for LIBs with high capacity, good cycling stability and excellent rate performance.


The Analyst ◽  
2019 ◽  
Vol 144 (15) ◽  
pp. 4534-4544 ◽  
Author(s):  
Qian-Qian Liu ◽  
Shi-Hui Zhang ◽  
Jing Yang ◽  
Ke-Fen Yue

La-MOF shows excellent chemical stability and high fluorescence sensing. La-MOF electrode exhibits high specific capacity and good cycling stability.


2016 ◽  
Vol 4 (38) ◽  
pp. 14687-14692 ◽  
Author(s):  
Fei Ye ◽  
Yuncheng Hu ◽  
Yong Zhao ◽  
Degui Zhu ◽  
Yonggui Wang ◽  
...  

A new hierarchical hollow α-Fe2O3 nanostructure that has a nanosphere morphology of approximately 250 nm in diameter integrated with ensembles of 15 nm diameter nanotubes is designed and engineered. As an anode material for Li-ion batteries, the HHFN exhibits significantly improved Li storage capability, good cycling stability, as well as high-rate performance.


2016 ◽  
Vol 4 (28) ◽  
pp. 10948-10955 ◽  
Author(s):  
Wei Sun ◽  
Liu Wan ◽  
Xiaocheng Li ◽  
Xinhong Zhao ◽  
Xingbin Yan

A bean pod-like void-containing Si@DDAC@N-GNS structure has been elaborately designed and synthesized, which demonstrates highly reversible capacity, excellent rate capability and good cycling stability.


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