Hydrothermal synthesis of manganese oxide (Mn3O4) with granule-like morphology for supercapacitor application

Nanoscale Mn3O4 Electrocatalyst as Improved Electrode Materials for Electrochemical Sensing of Chloramphenicol Drug

“…Mn 3 O 4 has been extensively utilized and explored as a potential electrode material in electrochemical sensors, 14 electrocatalysis, 15 batteries, 16 wastewater treatment, 17 and supercapacitors. 18 However, realizing the nanoscale level, Mn 3 O 4 is still challenging for many researchers due to the aggregation, limited by its poor intrinsic electrical conductivity and small specific surface area. Moreover, TMOs offer low cationic−protonic diffusion, and the actual electrochemical activity and specific capacitance are much lower than the theoretical value.…”

“…Manganese oxide (Mn 3 O 4 ) shows widespread interest owing to its good biocompatibility, high surface area, and chemical stability. Mn 3 O 4 has been extensively utilized and explored as a potential electrode material in electrochemical sensors, electrocatalysis, batteries, wastewater treatment, and supercapacitors . However, realizing the nanoscale level, Mn 3 O 4 is still challenging for many researchers due to the aggregation, limited by its poor intrinsic electrical conductivity and small specific surface area.…”

Amorphous Cr2O3 Sheets: A Novel Supercapacitor Electrode Material

“…If we normalize the specific capacitance with respect to specific surface area (SSA), amorphous Cr 2 O 3 (∼155 m 2 /g) outperforms activated carbon (1532 m 2 /g) [41,42] . Additionally, compared with widely used metal oxides (MO), despite the modest SSA, amorphous Cr 2 O 3 performs better [43,44,9] …”

“…[41,42] Additionally, compared with widely used metal oxides (MO), despite the modest SSA, amorphous Cr 2 O 3 performs better. [43,44,9] Energy density and power density of prepared amorphous and crystalline Cr 2 O 3 samples are obtained using the galvanostatic charge-discharge (GCD) study. The values of energy density (ED) and power density (PD) at the current density of 1 A/g were calculated using the relations (3) and (4), respectively: [38] where Cs is the specific capacitance of the device (F/g), td is the discharging time (s), V is the voltage window (volts), ED is the energy density (Wh/kg), and PD is the power density (W/ kg).…”

Experimental Investigation of Pure Spinel Mn3O4 Properties Synthesized through Chemical Spray Pyrolysis for Future Gas Sensor Application

“…[20,21] The expanding attention in this material Mn 3 O 4 has been motivating the search for deposition techniques with a high-quality. In fact, several physical and chemical elaboration techniques are used for the fabrication of Mn 3 O 4 thin layers such as, chemical vapor deposition, [22] Metal-Organic Chemical Vapor Deposition (MOCVD), [23] hydrothermal technique, [24] spray pyrolysis [25,26] and Pulsed Laser Deposition (PLD). [27] However, some of them can introduce defects and impurities on material.…”