Amalgamation of MnWO₄ nanorods with amorphous carbon nanotubes for highly stabilized energy efficient supercapacitor electrodes

Abstract

Enhanced electrochemical performance of supercapacitors can be achieved through optimal hybridization of electroactive nanomaterials, as it effectively increases the overall surface area and ensures greater electrolyte-electrode interaction. This work reports...

Synthesis of different manganese tungstate nanostructures for enhanced charge-storage applications: theoretical support for experimental findings

“…The detailed significance of C 0 and C 00 may be found in our previous work and that of other workers. 36,53,54 The assessed values of the real capacitances of all the electrodes from the frequency-dependent real capacitance profiles (Fig. 10(b)) were in good accordance with the capacitance measured from the GCD profile at 0.01 Hz.…”

Synthesis of active-site rich molybdenum-doped manganese tungstate nanocubes for effective electrochemical sensing of the antiviral drug (COVID-19) nitazoxanide

“…Moreover, the high-resolution spectrum of O 1s ( Fig. 4 (E)) revealed the characteristic peaks at binding energies of 529 and 530 eV, which could be assigned to lattice oxygen species originating from the Mn–O–W group (vacancies) and the surface-absorbed oxygen species (bound to the surface), respectively ( Sardar et al, 2021 ). Thus, XPS results confirmed the presence of all elements, including the Mo dopant.…”

Hydrothermal Synthesis of MnWO4@GO Composite as Non-Precious Electrocatalyst for Urea Oxidation

“…With 3 eV, however, the MW@GO-12 showed four peaks at 529.5, 531, 532.6, and 534.5 eV ( Figure 3 d). In both samples, the most dominant peak was observed at approximately 529 eV, associated with the Mn-O-W bond in MnWO 4 and the remaining peaks related to O −2 present in the lattice of MnWO 4 , O=C-OH, and C-OH bonds, respectively [ 26 , 27 , 36 , 37 ]. The C1s spectra show four peaks at 284.2, 285.7, 287.6, and 288.9 eV ( Figure 3 e), corresponding to C=C/C-C, C-OH, C-O, and O=C-OH, respectively [ 26 , 38 ].…”

“…The MW@GO-7 shows higher current densities compared to MW-7 and MW-12 due to the addition of GO. The MW@GO-12 electrocatalyst exhibited higher current density values compared to other electrocatalysts owing to its smaller size and the presence of GO [ 27 , 29 ]. Tang et al synthesized layered MnWO 4 /RGOcomposite.…”

“…Mallick et al synthesized cotton-fabric-derived mesoporous carbon-supported MnWO 4 nanostructures for Zn-ion batteries [ 26 ]. Sardar et al synthesized a MnWO 4 /amorphous CNT hybrid material for supercapacitor applications [ 27 ]. Xu et al synthesized a GO/MnWO 4 composite for magnetic resonance/photoacoustic dual-modal imaging and tumor photothermo-chemotherapy [ 28 ].…”