Effect of electrolyte cation on the charge storage mechanism of manganese dioxide for electrochemical capacitors

2018 ◽  
Vol 271 ◽  
pp. 337-350 ◽  
Author(s):  
Madeleine F. Dupont ◽  
Marveh Forghani ◽  
Amanda P. Cameron ◽  
Scott W. Donne
Keyword(s):  
Manganese Dioxide ◽  
Electrochemical Capacitors ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

Amorphous Manganese Dioxide as a Material for an Electrochemical Pseudocapacitor

2005 ◽  
Vol 277-279 ◽  
pp. 703-707 ◽  
Author(s):  
Sun Wen ◽  
In Hyeong Yeo ◽  
Jong Man Park ◽  
Sun Il Mho
Keyword(s):  
Ion Exchange ◽  
Manganese Dioxide ◽  
Redox Reaction ◽  
Proton Exchange ◽  
Charge Storage ◽  
Storage Process ◽  
Oxide Electrode ◽  
Storage Mechanism ◽  
Charge Storage Mechanism ◽  
Hydrated Manganese Dioxide

The charge storage process of amorphous hydrated manganese dioxide (MnO2) as a pseudo-capacitor involves a fast redox reaction at the electrode surface. In order to understand the charge storage mechanism of MnO2 as a pseudo-capacitor in an aqueous KCl solution, we monitored the change of the capacitance by varying the pH of the solution, the cation of the electrolyte, the concentration of the KCl electrolyte, and the solvent. The charge storage mechanism of a metal oxide electrode such as MnO2 is concluded to involve a fast redox reaction through both the potassium ion exchange, MnO2 + δK+ + δe- ⇔ MnO2-δ(OK)δ and the proton exchange, MnO2 + δH+ + δe- ⇔ MnO2-δ(OH)δ dependent upon the availability of the cations in the electrolyte.

Effect of intercalated alkali ions in layered manganese oxide nanosheets as neutral electrochemical capacitors

2019 ◽  
Vol 55 (9) ◽  
pp. 1213-1216 ◽  
Author(s):  
Nattapol Ma ◽  
Soracha Kosasang ◽  
Atiweena Krittayavathananon ◽  
Nutthaphon Phattharasupakun ◽  
Sathyamoorthi Sethuraman ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Manganese Oxides ◽  
Electrochemical Capacitors ◽  
Electrochemical Capacitor ◽  
Charge Storage ◽  
Storage Mechanism ◽  
Alkali Ions ◽  
Charge Storage Mechanism ◽  
Layered Manganese Oxide ◽  
Insight Into

New insight into the influence of Li+, Na+, and K+ cations between adjacent layers of birnessite-type manganese oxides (MnOx) towards the intercalation/deintercalation charge storage mechanism as a neutral electrochemical capacitor (1 M Na2SO4) is demonstrated.

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
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