Exceptional interfacial electrochemistry of few-layered 2D MoS2 quantum sheets for high performance flexible solid-state supercapacitors

2020 ◽  
Vol 8 (26) ◽  
pp. 13121-13131 ◽  
Author(s):  
Swapnil Shital Nardekar ◽  
Karthikeyan Krishnamoorthy ◽  
Parthiban Pazhamalai ◽  
Surjit Sahoo ◽  
Vimal Kumar Mariappan ◽  
...  
Keyword(s):  
Solid State ◽  
Electrode Material ◽  
High Performance ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Interfacial Electrochemistry ◽  
Hidden Knowledge ◽  
Charge Storage Mechanism

Extracting the hidden knowledge behind the exception charge storage mechanism involved in the MoS2 quantum sheets electrode material.

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...

Fiber-based all-solid-state asymmetric supercapacitors based on Co3O4@MnO2 core/shell nanowire arrays

2017 ◽  
Vol 5 (44) ◽  
pp. 22939-22944 ◽  
Author(s):  
Xiaoying Niu ◽  
Guoyin Zhu ◽  
Zhihui Yin ◽  
Ziyang Dai ◽  
Xiaocheng Hou ◽  
...  
Keyword(s):  
Solid State ◽  
Nanowire Array ◽  
Fabrication Process ◽  
Nanowire Arrays ◽  
Charge Storage ◽  
Core Shell ◽  
Asymmetric Supercapacitors ◽  
Storage Mechanism ◽  
Array Electrode ◽  
Charge Storage Mechanism

Schematic illustration of the fabrication process and charge storage mechanism of the hierarchical Ni wire/Co3O4@MnO2 nanowire array electrode.

All-solid-state disordered LiTiS2pseudocapacitor

2017 ◽  
Vol 5 (30) ◽  
pp. 15661-15668 ◽  
Author(s):  
Justin M. Whiteley ◽  
Simon Hafner ◽  
Sang Sub Han ◽  
Seul Cham Kim ◽  
Viet-Duc Le ◽  
...  
Keyword(s):  
Solid State ◽  
Liquid Electrolyte ◽  
High Rate ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

A lithium charge storage mechanism is discovered at the interface of nano-crystallites of LiTiS2in the solid state. The surface titanium atoms can be reduced reversibly at higher voltages. Electrochemically, this appears as a pseudocapacitive effect boosting capacity greater than theoretical at high rate with no liquid electrolyte.

Charge storage mechanism of MOF-derived Mn2O3 as high performance cathode of aqueous zinc-ion batteries

2021 ◽  
Vol 52 ◽  
pp. 277-283 ◽  
Author(s):  
Min Mao ◽  
Xingxing Wu ◽  
Yi Hu ◽  
Qunhui Yuan ◽  
Yan-Bing He ◽  
...  
Keyword(s):  
High Performance ◽  
Zinc Ion ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

Combined capacitive and electrochemical charge storage mechanism in high performance graphene-based lithium-ion batteries

2021 ◽  
pp. 100928
Author(s):  
Silvio Scaravonati ◽  
Michele Sidoli ◽  
Giacomo Magnani ◽  
Alberto Morenghi ◽  
Marcello Canova ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

A proton-hopping charge storage mechanism of ionic one-dimensional coordination polymers for high-performance supercapacitors

2017 ◽  
Vol 53 (86) ◽  
pp. 11786-11789 ◽  
Author(s):  
Nutthaphon Phattharasupakun ◽  
Juthaporn Wutthiprom ◽  
Surasak Kaenket ◽  
Thana Maihom ◽  
Jumras Limtrakul ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
High Performance ◽  
Charge Storage ◽  
Aqueous Electrolytes ◽  
Proton Conducting ◽  
One Dimensional ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

A proton-conducting coordination polymer of Zn2+ phosphate and protonated imidazole has been used as a novel supercapacitor material in aqueous electrolytes.

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 Unveiling Pseudocapacitive Charge Storage Behavior in FeWO4 Electrode Material by Operando X-ray Absorption Spectroscopy

2019 ◽  
Author(s):  
Nicolas Goubard-Bretesché ◽  
Olivier Crosnier ◽  
Camille Douard ◽  
Antonella Iadecola ◽  
Richard Retoux ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Electrode Material ◽  
Electrode Materials ◽  
Full Description ◽  
Charge Storage ◽  
X Ray ◽  
Storage Mechanism ◽  
Storage Behavior ◽  
Charge Storage Mechanism ◽  
X Ray Absorption

In nano-sized FeWO<sub>4</sub> electrode material, both Fe and W metal cations are suspected to be involved in the fast and reversible Faradaic surface reactions giving rise to its pseudocapacitive signature. As for any other pseudocapacitive materials, to fully understand the charge storage mechanism, a deeper insight into the involvement of the electroactive cations still has to be provided. The present paper illustrates how operando X-ray absorption spectroscopy (XAS) has been successfully used to collect data of unprecedented quality allowing to elucidate the complex electrochemical behavior of this multicationic pseudocapacitive material. Moreover, these in-depth experiments were obtained in real time upon cycling the electrode, which allowed investigating the reactions occurring in the material within a realistic timescale, which is compatible with electrochemical capacitors practical operation. Both Fe K-edge and W L<sub>3</sub>-edge measurements point out the involvement of the Fe<sup>3+</sup>/Fe<sup>2+</sup> redox couple in the charge storage while W<sup>6+</sup> acts as a spectator cation. The result of this study enables to unambiguously discriminate between the Faradaic and capacitive behavior of FeWO4. Beside these valuable insights toward the full description of the charge storage mechanism in FeWO<sub>4</sub>, this paper demonstrates the potential of operando X-ray absorption spectroscopy to enable a better material engineering for new high capacitance pseudocapacitive electrode materials.

scholarly journals Novel insights into the charge storage mechanism in pseudocapacitive vanadium nitride thick films for high-performance on-chip micro-supercapacitors

2020 ◽  
Vol 13 (3) ◽  
pp. 949-957 ◽  
Author(s):  
Kevin Robert ◽  
Didier Stiévenard ◽  
Dominique Deresmes ◽  
Camille Douard ◽  
Antonella Iadecola ◽  
...  
Keyword(s):  
High Performance ◽  
Thick Films ◽  
Vanadium Nitride ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
On Chip

Unveiling the charge storage mechanism of vanadium nitride to defy the limits of on-chip micro-supercapacitors.

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