Electrostatically Sprayed Manganese Oxide Films – from Pseudocapacitive Charge Storage Materials to 3D Microelectrode Integrands

2018 ◽  
Keyword(s):  
Manganese Oxide ◽  
Oxide Films ◽  
Charge Storage ◽  
Storage Materials

scholarly journals Electrostatic Spray Deposition-Based Manganese Oxide Films—From Pseudocapacitive Charge Storage Materials to Three-Dimensional Microelectrode Integrands

Nanomaterials ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 198 ◽  
Author(s):  
Richa Agrawal ◽  
Ebenezer Adelowo ◽  
Amin Baboukani ◽  
Michael Villegas ◽  
Alexandra Henriques ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Spray Deposition ◽  
Oxide Films ◽  
Three Dimensional ◽  
Charge Storage ◽  
Electrostatic Spray Deposition ◽  
Storage Materials ◽  
Electrostatic Spray

Morphology-controlled electrochemical capacitive behavior of manganese oxide films

2019 ◽  
Vol 12 (01) ◽  
pp. 1850099 ◽  
Author(s):  
Avtar Singh ◽  
Davinder Kumar ◽  
Anup Thakur ◽  
Raminder Kaur
Keyword(s):  
Manganese Oxide ◽  
Surface Area ◽  
Deposition Time ◽  
Electrochemical Impedance ◽  
Steel Substrate ◽  
Oxide Films ◽  
Electrochemical Capacitor ◽  
Charge Transfer Resistance ◽  
Charge Storage ◽  
Transfer Resistance

This paper reports the effect of surface morphology on the electrochemical performance of electrodeposited manganese oxide films. These films were deposited on stainless steel substrate by chronoamperometry for different deposition time (30[Formula: see text]s, 60[Formula: see text]s, and 120[Formula: see text]s). Morphology of deposited films were studied by scanning electron microscopy and decrease in surface area was observed with variation in deposition time. Cyclic voltammetry revealed decrease in specific capacitance with decrease in surface area of films. This effect was analyzed by electrochemical impedance spectroscopy (EIS) study. Further, the EIS data were fitted with equivalent circuit of electrochemical capacitor electrode and investigating electrolyte ion interaction with electrode during charge storage process. EIS fitted data were analyzed to study the electrode characteristics such as series resistance, double layer charge storage and charge transfer resistance. The variation in these characteristics was due to change in diffusion length with increased deposited electrode material content on substrate.

scholarly journals On the Origin of the OER Activity of Ultrathin Manganese Oxide Films

2021 ◽  
Vol 13 (2) ◽  
pp. 2428-2436
Author(s):  
Paul Plate ◽  
Christian Höhn ◽  
Ulrike Bloeck ◽  
Peter Bogdanoff ◽  
Sebastian Fiechter ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Oxide Films

Interface properties and electronic structure of ultrathin manganese oxide films on Ag(001)

2007 ◽  
Vol 601 (18) ◽  
pp. 4484-4487 ◽  
Author(s):  
M. Nagel ◽  
I. Biswas ◽  
H. Peisert ◽  
T. Chassé
Keyword(s):  
Electronic Structure ◽  
Manganese Oxide ◽  
Oxide Films ◽  
Interface Properties

Charge storage in evaporated silicon oxide films

1970 ◽  
Vol 6 (1) ◽  
pp. 31-50 ◽  
Author(s):  
R.P. Howson ◽  
A. Taylor
Keyword(s):  
Silicon Oxide ◽  
Oxide Films ◽  
Charge Storage

Well-defined star-shaped donor–acceptor conjugated molecules for organic resistive memory devices

2015 ◽  
Vol 51 (75) ◽  
pp. 14179-14182 ◽  
Author(s):  
Hung-Chin Wu ◽  
Jicheng Zhang ◽  
Zhishan Bo ◽  
Wen-Chang Chen
Keyword(s):  
Charge Storage ◽  
Memory Devices ◽  
Resistive Memory ◽  
Conjugated Molecules ◽  
Storage Materials ◽  
End Groups ◽  
Donor Acceptor ◽  
Solution Processable ◽  
First Time

Solution processable star-shaped donor–acceptor conjugated molecules are explored for the first time as charge storage materials for resistor-type memory devices with a triphenylamine (donor) core, and three 1.8-naphthalimide (acceptors) end-groups.

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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