Encapsulating ionic liquids into POM-based MOFs to improve their conductivity for superior lithium storage

2018 ◽  
Vol 6 (18) ◽  
pp. 8735-8741 ◽  
Author(s):  
Mi Zhang ◽  
A-Man Zhang ◽  
Xiao-Xiao Wang ◽  
Qing Huang ◽  
Xiaoshu Zhu ◽  
...  

We encapsulate ionic liquids (ILs) into polyoxometalate-based metal–organic frameworks (POMOFs) to fabricate a series of ILs-functionalized POMOFs crystals (POMs-ILs@MOFs) and PMo10V2-ILs@MIL-100 crystals used as anode materials show high reversible capacity, superior cycling stability and rate capability.

2018 ◽  
Vol 6 (40) ◽  
pp. 19604-19610 ◽  
Author(s):  
Zhiqing Jia ◽  
Yingbin Tan ◽  
Zhonghui Cui ◽  
Linlin Zhang ◽  
Xiangxin Guo

NiCo2O4@graphene nanorods synthesized by tuning the compositional chemistry of metal–organic frameworks exhibit high Li-storage capacity, excellent rate capability and extraordinary cycling stability.


2015 ◽  
Vol 3 (9) ◽  
pp. 5083-5091 ◽  
Author(s):  
Qiang Wang ◽  
Jing Sun ◽  
Qi Wang ◽  
De-an Zhang ◽  
Lili Xing ◽  
...  

α-MoO3–In2O3 core–shell nanorods have been synthesized by a hydrothermal method. As anodes of LIBs, they exhibit excellent lithium storage performance with high reversible capacity, excellent cyclability and good rate capability.


RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42922-42930 ◽  
Author(s):  
Diganta Saikia ◽  
Tzu-Hua Wang ◽  
Chieh-Ju Chou ◽  
Jason Fang ◽  
Li-Duan Tsai ◽  
...  

Ordered mesoporous carbons CMK-3 and CMK-8 with different mesostructures are evaluated as anode materials for lithium-ion batteries. CMK-8 possesses higher reversible capacity, better cycling stability and rate capability than CMK-3.


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.


2021 ◽  
Author(s):  
Zhichao Liu ◽  
Dong Wang ◽  
Hongliang Mu ◽  
Chunjie Zhang ◽  
Liqing Wu ◽  
...  

Abstract Two-phase heterostructure with rich phase boundaries holds great potential in engineering advanced electrode materials. However, current heterostructures are largely generated by introducing exotic cations or anions, complicating synthetic procedures and disturbing real insights into the intrinsic effect of heterostructure. Herein, nanosized monometallic selenides heterostructures are developed by precisely controlled selenylation of metal organic frameworks, which are implanted into in-situ formed carbon (NiSe/NiSe2@C, CoSe/CoSe2@C). The disordered atoms arrangement at two-phase boundary leads to the redistribution of interfacial charge and generation of lattice distortions, promoting easy adsorption and swift transfer of Li+, and providing extra active sites. As a proof of concept, the NiSe/NiSe2@C exhibits far surpassing lithium storage properties to single-phase counterparts (NiSe@C and NiSe2@C), including higher reversible capacity of 1015.5 mAh g− 1, better rate capability (500.8 mAh g− 1 at 4 A g− 1), and superior cyclic performance. As expected, the NiSe/NiSe2@C manifests lower charge transfer resistance, higher Li+ diffusion coefficient, and accelerated capacitive kinetics. Ex-situ X-ray diffraction, high-resolution transmission electron microscopy, and selected area electron diffraction combined with differential capacity versus voltage plots reveal multi-step redox mechanism of NiSe/NiSe2@C and the reason of conspicuous capacity enhancement. This work demonstrates the enormous potential of monometallic monoanionic heterostructure in energy-related field.


ACS Nano ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 12016-12026 ◽  
Author(s):  
Zhenzhen Wu ◽  
David Adekoya ◽  
Xing Huang ◽  
Milton J. Kiefel ◽  
Jian Xie ◽  
...  

2019 ◽  
Vol 48 (28) ◽  
pp. 10422-10426 ◽  
Author(s):  
Xing Meng ◽  
Hai-Ning Wang ◽  
Yan-Hong Zou ◽  
Lu-Song Wang ◽  
Zi-Yan Zhou

POM-based metallogels are employed as anode materials for the first time, which exhibit high reversible capacity, high rate capability, and good cycling stability.


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.


2017 ◽  
Vol 41 (21) ◽  
pp. 12969-12975 ◽  
Author(s):  
Yue Zhang ◽  
Yudai Huang ◽  
Yakun Tang ◽  
Hongyang Zhao ◽  
Yanjun Cai ◽  
...  

Bicontinuous hierarchical mesoporous LiFePO4/C microbelts have been synthesized using a simple dual-solvent electrospinning method for the first time. The sample exhibits a high reversible capacity (153 mA h g−1 at 0.5C), and an excellent high rate cycling performance.


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