scholarly journals Probing Structural Evolution and Charge Storage Mechanism of NiO2 H x Electrode Materials using In Operando Resonance Raman Spectroscopy

2016 ◽  
Vol 3 (6) ◽  
pp. 1500433 ◽  
Author(s):  
Dongchang Chen ◽  
Xunhui Xiong ◽  
Bote Zhao ◽  
Mahmoud A. Mahmoud ◽  
Mostafa A. El-Sayed ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Electrode Materials ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Structural Evolution ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
In Operando

scholarly journals Probing the Charge Storage Mechanism of a Pseudocapacitive MnO2 Electrode Using in Operando Raman Spectroscopy

2015 ◽  
Vol 27 (19) ◽  
pp. 6608-6619 ◽  
Author(s):  
Dongchang Chen ◽  
Dong Ding ◽  
Xiaxi Li ◽  
Gordon Henry Waller ◽  
Xunhui Xiong ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
In Operando ◽  
Mno2 Electrode

Effect of Structural Ordering on the Charge Storage Mechanism of p-Type Organic Electrode Materials

2021 ◽  
Vol 13 (6) ◽  
pp. 7135-7141 ◽  
Author(s):  
Brian M. Peterson ◽  
Cara N. Gannett ◽  
Luis Melecio-Zambrano ◽  
Brett P. Fors ◽  
Héctor Abruña
Keyword(s):  
Electrode Materials ◽  
Charge Storage ◽  
Structural Ordering ◽  
Storage Mechanism ◽  
Organic Electrode ◽  
Charge Storage Mechanism ◽  
P Type

Charge-storage mechanism of highly defective NiO nanostructures onto carbon nanofibers in electrochemical supercapacitor

Nanoscale ◽  
2021 ◽  
Author(s):  
Willian G Nunes ◽  
Andre Navarro Miranda ◽  
Bruno Freitas ◽  
Rafael Vicentini ◽  
Aline Oliveira ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Nickel Oxide ◽  
Carbon Nanofibers ◽  
Aqueous Electrolyte ◽  
Charge Storage ◽  
Dynamic Polarization ◽  
Storage Mechanism ◽  
Electrochemical Supercapacitor ◽  
Charge Storage Mechanism

An electrode composed of highly defective nickel oxide (NiO) nanostructures supported on carbon nanofibers (CNFs) and immersed in a Li+-based aqueous electrolyte is studied using Raman spectroscopy under dynamic polarization...

Charge Storage Mechanism and Structural Evolution of Viologen Crystals as the Cathode of Lithium Batteries

2020 ◽  
Vol 132 (28) ◽  
pp. 11630-11636
Author(s):  
Ting Ma ◽  
Luojia Liu ◽  
Jiaqi Wang ◽  
Yong Lu ◽  
Jun Chen
Keyword(s):  
Lithium Batteries ◽  
Structural Evolution ◽  
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 Battery-Supercapacitor Hybrids: A Literature Review

2021 ◽  
Author(s):  
Praanav Lodha
Keyword(s):  
Energy Storage ◽  
Literature Review ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Different Types ◽  
Charge Storage Mechanism

<p>This literature review explains the construction and charge storage mechanisms in Lithium-ion batteries. Further, it elaborates on the electrode reactions in Lithium-ion batteries, and commonly used electrode materials and their structures. Different types of Lithium-based batteries’ electrochemical performance were compared, in addition to other relevant differentiators. The energy storage mechanism in Supercapacitors is briefly touched upon – and the electrochemical performance of supercapacitors is compared with that of lithium-ion batteries. Battery supercapacitor hybrids are introduced, with a brief section on their development over the past two decades following explanations of the charge storage mechanism and construction of battery supercapacitor hybrids. Battery supercapacitor hybrids are then compared with existing electrochemical energy storage mechanisms and finally, two types of battery supercapacitor hybrids were discussed.</p>

scholarly journals Investigation into the electrochemical behaviour of silver in alkaline solution and the influence of Au-decoration using operando Raman spectroscopy

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8453-8459
Author(s):  
Haowei Luo ◽  
Xu Ji ◽  
Shuang Cheng
Keyword(s):  
Raman Spectroscopy ◽  
Alkaline Solution ◽  
Electrochemical Behaviour ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Electron Process ◽  
Charge Storage Mechanism

Apart from the traditional charge storage mechanism demonstrated in CV, a two-electron process of Ag to AgO is revealed in GCD.

scholarly journals In Operando analysis of the charge storage mechanism in a conversion ZnCo2O4 anode and the application in flexible Li-ion batteries

2019 ◽  
Vol 6 (7) ◽  
pp. 1861-1872 ◽  
Author(s):  
Zijian Zhao ◽  
Guiying Tian ◽  
Vanessa Trouillet ◽  
Lihua Zhu ◽  
Jiangong Zhu ◽  
...  
Keyword(s):  
Charge Storage ◽  
Li Ion Batteries ◽  
Storage Mechanism ◽  
Intermediate Phases ◽  
Charge Storage Mechanism ◽  
Li Ion ◽  
In Operando

Intermediate phases of LiCo2O3, CoO and ZnO are evidenced during the 1st lithiation of a ZnCo2O4 anode.

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