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...

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

Revealing the Charge Storage Mechanism of Nickel Oxide Electrochromic Supercapacitors

2020 ◽  
Vol 12 (35) ◽  
pp. 39098-39107
Author(s):  
Zhihui Luo ◽  
Lei Liu ◽  
Xiaoyong Yang ◽  
Xuan Luo ◽  
Peng Bi ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

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.

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

Unraveling the different charge storage mechanism in T and H phases of MoS2

2016 ◽  
Vol 217 ◽  
pp. 1-8 ◽  
Author(s):  
Bao Zhang ◽  
Xiao Ji ◽  
Kui Xu ◽  
Chi Chen ◽  
Xiong Xiong ◽  
...  
Keyword(s):  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

Understanding and Calibration of Charge Storage Mechanism in Cyclic Voltammetry Curves

2021 ◽  
Author(s):  
Xiangjun Pu ◽  
Dong Zhao ◽  
Chenglong Fu ◽  
Zhongxue Chen ◽  
Shunan Cao ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

scholarly journals The Role of Al3+-Based Aqueous Electrolytes in the Charge Storage Mechanism of MnOx Cathodes

2020 ◽  
Author(s):  
Véronique Balland ◽  
Mickaël Mateos ◽  
Kenneth D. Harris ◽  
Benoit Limoges
Keyword(s):  
Manganese Oxide ◽  
Critical Analysis ◽  
Charge Storage ◽  
Aqueous Electrolytes ◽  
Storage Mechanism ◽  
Main Charge ◽  
Charge Storage Mechanism ◽  
The Subject

<p>Rechargeable aqueous aluminium batteries are the subject of growing interest, but the charge storage mechanisms at manganese oxide-based cathodes remain poorly understood with as many mechanisms as studies. Here, we use an original <i>in situ</i> spectroelectrochemical methodology to unambiguously demonstrate that the reversible proton-coupled MnO<sub>2</sub>-to-Mn<sup>2+</sup> conversion is the main charge storage mechanism occurring at MnO<sub>2</sub> cathodes over a range of slightly acidic Al<sup>3+</sup>-based aqueous electrolytes. In Zn/MnO<sub>2</sub> assemblies, this mechanism is associated with high gravimetric capacity and discharge potentials, up to 560 mAh·g<sup>-1</sup> and 1.76 V respectively, attractive efficiencies (<i>CE</i> > 98.5 % and <i>EE</i> > 80%) and excellent cyclability (> 750 cycles at 10 A·g<sup>-1</sup>). Finally, we conducted a critical analysis of the data previously published on MnO<sub>x</sub> cathodes in Al<sup>3+</sup>-based aqueous electrolytes to conclude on a universal charge storage mechanism, <i>i.e.</i>, the reversible electrodissolution/electrodeposition of MnO<sub>2</sub>.<i></i></p>

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