Bimetallic organic framework derivation of three-dimensional and heterogeneous metal selenides/carbon composites as advanced anodes for lithium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (23) ◽  
pp. 12623-12631
Author(s):  
Ke Wang ◽  
Yaping Wang ◽  
Yifang Zhang ◽  
Fei Liu ◽  
Junrong Shi ◽  
...  

Heterogeneous structures have been attracting increasing attention in energy storage and conversion applications due to the phase interface and synergistic effect of multiple components.

2015 ◽  
Vol 3 (42) ◽  
pp. 21298-21307 ◽  
Author(s):  
Hong-Qiang Wang ◽  
Guan-Hua Yang ◽  
Li-San Cui ◽  
Ze-Sheng Li ◽  
Zhi-Xiong Yan ◽  
...  

Three-dimensional (3D) graphene-based materials have received increasing attention due to their application potential in electrochemical energy storage and conversion.


2018 ◽  
Vol 6 (8) ◽  
pp. 3479-3487 ◽  
Author(s):  
Ying Yang ◽  
Xu Zhao ◽  
Hong-En Wang ◽  
Malin Li ◽  
Ce Hao ◽  
...  

Phosphorized SnO2/graphene nanocomposite was designed and synthesized for superior Li-ion storage properties due to the synergistic effect of multiple components.


2017 ◽  
pp. 1719-1758
Author(s):  
Imran Shakir ◽  
Zahid Ali ◽  
Usman Ali Rana ◽  
Ayman Nafady ◽  
Mansoor Sarfraz ◽  
...  

One of the greatest challenges for the modern world is the ever-increasing demand of energy, which may soon outstrip the amount of natural resources that can be obtained using currently known energy conversion and energy storage technologies such as solar cells, fuel cells, lithium ion batteries, and supercapacitors. It appears that the maximum output efficiencies of these devices have already reached the intrinsic limits of almost all electrocatalyst materials. Hence, it is a high time to think about new material architectures by controlling size, shape, and geometry, as well as composition that can potentially make a significant improvement in the performance of these electrochemical devices. Among several known electrocatalyst materials are nanomaterials and their composites due to their unique electrical, mechanical, physical, chemical, and structural characteristics. These materials have opened a whole new territory of possibilities in designing high performance energy storage and conversion devices. In this chapter, the authors review the recent progress in energy storage and conversion devices that utilize various nanomaterials and their composite materials and identify future directions in which the field is likely to develop.


2015 ◽  
Vol 3 (20) ◽  
pp. 10787-10794 ◽  
Author(s):  
Guofeng Ren ◽  
Md Nadim Ferdous Hoque ◽  
Xuan Pan ◽  
Juliusz Warzywoda ◽  
Zhaoyang Fan

Assembling two-dimensional graphene and VO2(B) nanomaterials into an ordered three-dimensional forest structure for high performance lithium ion batteries.


2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hanmei Jiang ◽  
Zegao Wang ◽  
Qian Yang ◽  
Luxi Tan ◽  
Lichun Dong ◽  
...  

Abstract Metal selenides, such as NiSe2, have exhibited great potentials as multifunctional materials for energy storage and conversation. However, the utilization of pure NiSe2 as electrode materials is limited by its poor cycling stability, low electrical conductivity, and insufficient electrochemically active sites. To remedy these defects, herein, a novel NiSe2/Ti3C2Tx hybrid with strong interfacial interaction and electrical properties is fabricated, by wrapping NiSe2 octahedral crystal with ultrathin Ti3C2Tx MXene nanosheet. The NiSe2/Ti3C2Tx hybrid exhibits excellent electrochemical performance, with a high specific capacitance of 531.2 F g−1 at 1 A g−1 for supercapacitor, low overpotential of 200 mV at 10 mA g−1, and small Tafel slope of 37.7 mV dec−1 for hydrogen evolution reaction (HER). Furthermore, greater cycling stabilities for NiSe2/Ti3C2Tx hybrid in both supercapacitor and HER have also been achieved. These significant improvements compared with unmodified NiSe2 should be owing to the strong interfacial interaction between NiSe2 octahedral crystal and Ti3C2Tx MXene, which provides enhanced conductivity, fast charge transfer as well as abundant active sites, and highlight the promising potentials in combinations of MXene with metal selenides for multifunctional applications such as energy storage and conversion.


2015 ◽  
Vol 3 (45) ◽  
pp. 22853-22859 ◽  
Author(s):  
Joseph A. Teprovich ◽  
Héctor Colón-Mercado ◽  
Aaron L. Washington II ◽  
Patrick A. Ward ◽  
Scott Greenway ◽  
...  

Li2B12H12 is a bi-functional material that can be used as a superionic conductor in all solid-state lithium ion batteries and as a blue luminescent down-conversion dye.


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