Synthesis and Characterization of α-MnO2 nanoparticles for Supercapacitor application

Hierarchical MnO2 Nanosheets Grown on Cotton Fabric as a Flexible and Washable Solar Evaporator for Seawater Desalination

“…The fitting peaks located at 531.38 (12.80%) and 532.82 (22.30%) eV correspond to the surface-absorbed oxygen of Mn–OH and H–OH, respectively. The fitting peak at 529.94 (64.90%) is attributed to the lattice oxygen of Mn–O–Mn. , The FT-IR peak located at 508 cm –1 of Mn-CF can be assigned to the Mn–O bond vibration as presented in Figure a . All the results demonstrate that the Mn oxidation state is Mn 4+ (MnO 2 ) and MnO 2 particles exist in Mn-CF.…”

“…39,40 The FT-IR peak located at 508 cm −1 of Mn-CF can be assigned to the Mn−O bond vibration as presented in Figure 4a. 41 All the results demonstrate that the Mn oxidation state is Mn 4+ (MnO 2 ) and MnO 2 particles exist in Mn-CF.…”

Electrochemical synthesis of MnO 2 / NiO / ZnO trijunction coated stainless steel substrate as a supercapacitor electrode and cyclic voltammetry behavior modeling using artificial neural network

“…Most of the work to fabricate the supercapacitor electrode involved two steps: First, the synthesize composite or nanocomposites materials using chemical method (like chemical bath deposition or hydrothermal). Then, the supercapacitor electrode was prepared by mixing the obtained composite materials with a PVDF as a binder and organic solvent (such as NMP) to obtain a homogeneous paste which was applied as a thin film on conductive substrate 65‐72 . However, using electrodeposition technique to prepare directly oxides materials coated onto conductive substrate as supercapacitor electrodes is limited in the literature.…”

“…Then, the supercapacitor electrode was prepared by mixing the obtained composite materials with a PVDF as a binder and organic solvent (such as NMP) to obtain a homogeneous paste which was applied as a thin film on conductive substrate. [65][66][67][68][69][70][71][72] However, using electrodeposition technique to prepare directly oxides materials coated onto conductive substrate as supercapacitor electrodes is limited in the literature. In fact, Zheng X., et al have synthesized ZnO nanorod arrays growth onto flexible ITO/PET substrate by electrodeposition technique.…”

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

“…However, MnO 2 has displayed much lower capacitance in devices due to its low electrical conductivity, structural instability and low ion-diffusion constant. Since a large amount of research work has already been performed for this metal oxide, 106–123 we focused our discussion on the most recently reported results for MnO 2 -based SCs.…”