An oxygen-deficient vanadium oxide@N-doped carbon heterostructure for sodium-ion batteries: insights into the charge storage mechanism and enhanced reaction kinetics

2020 ◽  
Vol 8 (6) ◽  
pp. 3450-3458 ◽  
Author(s):  
Qingyuan Ren ◽  
Ning Qin ◽  
Bin Liu ◽  
Yuan Yao ◽  
Xu Zhao ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Reaction Kinetics ◽  
Sodium Ion ◽  
Charge Storage ◽  
Theoretical Studies ◽  
Sodium Ion Batteries ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Experimental And Theoretical Studies

The charge storage mechanism and reaction kinetics enhancement of an oxygen-deficient vanadium oxide@N-doped carbon heterostructure were elucidated by experimental and theoretical studies.

scholarly journals Na2.4Al0.4Mn2.6O7 anionic redox cathode material for sodium ion batteries- a combined experimental and theoretical approach to elucidate its charge storage mechanism

2022 ◽  
Author(s):  
Cindy Soares ◽  
Begoña Silvan ◽  
Yong-Seok Choi ◽  
Veronica Celorrio ◽  
Giannantonio Cibin ◽  
...  
Keyword(s):  
Cathode Material ◽  
Theoretical Approach ◽  
High Performance ◽  
Sodium Ion ◽  
Charge Storage ◽  
Sodium Ion Batteries ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

Here we report the synthesis via ceramic methods of the high-performance Mn-rich Na2.4Al0.4Mn2.6O7 oxygen-redox cathode material for Na-ion batteries which we use as a testbed material to study the effects...

Impact of Sodium Vanadium Oxide (NaV3O8, NVO) Material Synthesis Conditions on Charge Storage Mechanism in Zn-Ion Aqueous Batteries

2021 ◽  
Vol MA2021-01 (8) ◽  
pp. 2090-2090
Author(s):  
Christopher Tang ◽  
Gurpreet Singh ◽  
Lisa M. Housel ◽  
Sung Joo Kim ◽  
Calvin Quilty ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Charge Storage ◽  
Material Synthesis ◽  
Synthesis Conditions ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Aqueous Batteries

scholarly journals Solvothermal synthesis of Sn3N4 as a high capacity sodium-ion anode: theoretical and experimental study of its storage mechanism

2020 ◽  
Vol 8 (32) ◽  
pp. 16437-16450
Author(s):  
Samuel D. S. Fitch ◽  
Giannantonio Cibin ◽  
Steven P. Hepplestone ◽  
Nuria Garcia-Araez ◽  
Andrew L. Hector
Keyword(s):  
Experimental Study ◽  
Solvothermal Synthesis ◽  
High Capacity ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Solvothermal Conditions

Nanocrystalline Sn3N4 produced under solvothermal conditions provides a stable, reversible capacity of ∼850 mA h g−1 in sodium half-cells. The charge storage mechanism appears to combine insertion, conversion and alloying steps.

An Alternative Charge-Storage Mechanism for High-Performance Sodium-Ion and Potassium-Ion Anodes

2021 ◽  
pp. 915-924
Author(s):  
Yanjiao Ma ◽  
Yuan Ma ◽  
Holger Euchner ◽  
Xu Liu ◽  
Huang Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Potassium Ion ◽  
Sodium Ion ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

scholarly journals Effect of Germanium Incorporation on the Electrochemical Performance of Electrospun Fe2O3 Nanofibers-Based Anodes in Sodium-Ion Batteries

2021 ◽  
Vol 11 (4) ◽  
pp. 1483
Author(s):  
Beatrix Petrovičovà ◽  
Chiara Ferrara ◽  
Gabriele Brugnetti ◽  
Clemens Ritter ◽  
Martina Fracchia ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Active Material ◽  
Specific Capacity ◽  
Rate Capability ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Storage Mechanism ◽  
Tetrahedral Sites ◽  
Charge Storage Mechanism ◽  
Anode Active Material

Fe2O3 and Fe2O3:Ge nanofibers (NFs) were prepared via electrospinning and thoroughly characterized via several techniques in order to investigate the effects produced by germanium incorporation in the nanostructure and crystalline phase of the oxide. The results indicate that reference Fe2O3 NFs consist of interconnected hematite grains, whereas in Fe2O3:Ge NFs, constituted by finer and elongated nanostructures developing mainly along their axis, an amorphous component coexists with the dominant α-Fe2O3 and γ-Fe2O3 phases. Ge4+ ions, mostly dispersed as dopant impurities, are accommodated in the tetrahedral sites of the maghemite lattice and probably in the defective hematite surface sites. When tested as anode active material for sodium ion batteries, Fe2O3:Ge NFs show good specific capacity (320 mAh g−1 at 50 mA g−1) and excellent rate capability (still delivering 140 mAh g−1 at 2 A g−1). This behavior derives from the synergistic combination of the nanostructured morphology, the electronic transport properties of the complex material, and the pseudo-capacitive nature of the charge storage mechanism.

Impact of Sodium Vanadium Oxide (NaV3O8, NVO) Material Synthesis Conditions on Charge Storage Mechanism in Zn-ion Aqueous Batteries

2021 ◽  
Author(s):  
Christopher Tang ◽  
Gurpreet Singh ◽  
Lisa Housel ◽  
Sung Joo Kim ◽  
Calvin D. Quilty ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Charge Storage ◽  
Sodium Vanadate ◽  
Material Synthesis ◽  
Structural Water ◽  
Synthesis Conditions ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Aqueous Batteries

The electrochemical charge storage of sodium vanadate (NaV3O8 or NVO) cathodes in aqueous Zn-ion batteries has been hypothesized to be influenced by the inclusion of structural water for facilitating ion...

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