Characteristics of MnOx electrochemical capacitors with solid electrolyte (CsHSO4) operated at elevated temperatures

Low-Temperature Synthesis of Monodisperse 3D Manganese Oxide Nanoflowers and Their Pseudocapacitance Properties

“…In the recent years, MnO 2 has attracted much attention as a cathode electrode for supercapacitors because of its low cost and low toxicity. − There are two mechanisms proposed for charge storage in MnO 2 . To crystalline samples of MnO 2 , the mechanism involves intercalation/extraction of protons (H 3 O + ) or alkali cations such as Li + , Na + , K + , and so forth into the bulk of oxide particles with concomitant reduction/oxidation of the Mn ion. , MnO 2 + M + + e − ⇌ MnOOM ( M + = Li + , Na + , K + , or H 3 O + ) …”

Electrochemical Vapor Deposition of Semiconductors from Gas Phase with a Solid Membrane Cell

“…Before arraying out electrodeposition experiments, a study of the I – V behavior of the cell and hydrogen evolution at the cathode was carried out. A few studies have discussed I – V behavior on CsHSO 4 or CsH 2 PO 4 . − Since H + is the conducting ion in CsHSO 4 , its continuous supply is required for sustainable current flow through the membrane. This can be achieved by hydrogen oxidation at the anode.…”

Characterization of manganese dioxide electrodeposited by pulse and direct current for electrochemical capacitor

“…The value of x gives us an indication of the average oxidation state of Mn (Mn 4+ and Mn 3+ fractions) in each sample. It is determined by two-stage potentiometric titration methods [10,12]. In first stage, all Mn 4+ and Mn 3+ species are reduced to Mn 2+ , by using acidified FeSO4-H2SO4 solution.…”