Exceptional Sodium-Ion Storage by an Aza-Covalent Organic Framework for High Energy and Power Density Sodium-Ion Batteries

2021 ◽  
Vol 13 (13) ◽  
pp. 15083-15091
Author(s):  
Mohammad K. Shehab ◽  
K. Shamara Weeraratne ◽  
Tony Huang ◽  
Ka Un Lao ◽  
Hani M. El-Kaderi
2020 ◽  
Vol 8 (5) ◽  
pp. 2843-2850 ◽  
Author(s):  
Yuanlin Liu ◽  
Nana Wang ◽  
Xunhua Zhao ◽  
Zhiwei Fang ◽  
Xiao Zhang ◽  
...  

3DOM MoSe2@C constructed by ultrathin MoSe2 nanosheets strongly binging on 3DOM carbon skeleton exerts high energy and power density for sodium-ion batteries.


Nanoscale ◽  
2021 ◽  
Author(s):  
Xue-Yang Cui ◽  
Xiao-Dong Lin ◽  
Yajing Wang ◽  
Pan Xu ◽  
Xiaoxiang Fan ◽  
...  

The storage of sodium ions with carbon materials has huge potential for large-scale application due to its resourceful and environmental advantage. However, how to realize high power density, high energy...


Author(s):  
Peijia Wang ◽  
Jiajie Huang ◽  
Jing Zhang ◽  
Liang Wang ◽  
Peiheng Sun ◽  
...  

Hierarchically core–branched iron cobalt selenide arrays coated with N-doped carbon shell were designed and synthesized on carbon cloth, showing prominent electrochemical performance both in half-cell and full cell sodium ion batteries.


2017 ◽  
Vol 5 (35) ◽  
pp. 18823-18830 ◽  
Author(s):  
Seung-Keun Park ◽  
Jin Koo Kim ◽  
Yun Chan Kang

Multishell structured metal selenide nanocubes, namely, Co/(NiCo)Se2 box-in-box structures with different shell compositions, were successfully synthesized by applying zeolitic imidazolate framework-67 (ZIF-67) as a template.


2021 ◽  
Author(s):  
Wei Tian ◽  
Jin Tian ◽  
Naiming Lin ◽  
Ye Liu ◽  
Hui Zeng ◽  
...  

On account of multiple electron exchange reaction process, transition metal sulfides with high specific capacities are considered as promising electrode materials for sodium-ion batteries. However, their poor electrical conductivity and...


Author(s):  
Xu Xie ◽  
Zhoulan Yin ◽  
You Li ◽  
Ruixuan Tu ◽  
Yang Liu ◽  
...  

Metal-selenides are one of the next generation anode materials for sodium ion batteries (SIBs), but suffer from sluggish charge/ion transport, huge volume expansion and aggregation of particles. Herein, ZnSe/C composites...


Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1770
Author(s):  
Yaowu Chen ◽  
Zhu Guo ◽  
Bangquan Jian ◽  
Cheng Zheng ◽  
Haiyan Zhang

Sodium-ion storage devices have received widespread attention because of their abundant sodium resources, low cost and high energy density, which verges on lithium-ion storage devices. Electrochemical redox reactions of metal oxides offer a new approach to construct high-capacity anodes for sodium-ion storage devices. However, the poor rate performance, low Coulombic efficiency, and undesirable cycle stability of the redox conversion anodes remain a huge challenge for the practical application of sodium ion energy storage devices due to sluggish kinetics and irreversible structural change of most conversion anodes during cycling. Herein, a nitrogen-doping graphene/Fe2O3 (N-GF-300) composite material was successfully prepared as a sodium-ion storage anode for sodium ion batteries and sodium ion supercapacitors through a water bath and an annealing process, where Fe2O3 nanoparticles with a homogenous size of about 30 nm were uniformly anchored on the graphene nanosheets. The nitrogen-doping graphene structure enhanced the connection between Fe2O3 nanoparticles with graphene nanosheets to improve electrical conductivity and buffer the volume change of the material for high capacity and stable cycle performance. The N-GF-300 anode material delivered a high reversible discharge capacity of 638 mAh g−1 at a current density of 0.1 A g−1 and retained 428.3 mAh g−1 at 0.5 A g−1 after 100 cycles, indicating a strong cyclability of the SIBs. The asymmetrical N-GF-300//graphene SIC exhibited a high energy density and power density with 58 Wh kg−1 at 1365 W kg−1 in organic solution. The experimental results from this work clearly illustrate that the nitrogen-doping graphene/Fe2O3 composite material N-GF-300 is a potential feasibility for sodium-ion storage devices, which further reveals that the nitrogen doping approach is an effective technique for modifying carbon matrix composites for high reaction kinetics during cycles in sodium-ion storage devices and even other electrochemical storage devices.


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