Influence of Magnetic Field on the Electrodeposition and Capacitive Performances of MnO2

被引：5

作者：

Girimonte, Aldo ^{[1
,2
]}

Stefani, Andrea ^{[1
]}

Innocenti, Massimo ^{[3
]}

Fontanesi, Claudio ^{[1
]}

Giovanardi, Roberto ^{[1
]}

机构：

[1] Univ Modena & Reggio Emilia, Dept Engn Enzo Ferrari, Via Vivarelli 10, I-41125 Modena, Italy

[2] NOVAC Srl, Via Vivarelli 10, I-41125 Modena, Italy

[3] Univ Florence, Chem Dept Ugo Schiff, Via Lastruccia 3, I-50019 Sesto Fiorentino, Italy

来源：

MAGNETOCHEMISTRY | 2021年 / 7卷 / 02期

关键词：

supercapacitor; manganese dioxide; electrodeposition; magnetohydrodynamics; magnetohydrodynamic (MHD); pseudocapacitor; CHARGE STORAGE MECHANISM; ENERGY-STORAGE; ELECTROCHEMISTRY;

D O I：

10.3390/magnetochemistry7020019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This study focuses on the influence of an applied external magnetic field on the electrodeposition process and capacitive performances of MnO2, as pseudo-capacitive active material for supercapacitors electrodes. MnO2 was electrochemically deposited on Si/Au substrates in the presence and in the absence of a 0.5 T magnet, and its capacitive performance was tested via electrochemical characterization. The samples obtained in the presence of the magnetic field show a positive influence on the deposition process: the increase in deposition efficiency leads to more compact and uniform MnO2 coatings, with a decrease in capacitance values for the samples produced with the magnetic field.

引用

页码：1 / 18

页数：18

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