Moreover, the elemental composition and the crystal structure of the fabricated FeMoO4 are elucidated using XPS and XRD analyses. Upon analyzing its electrochemical performance as a supercapacitor electrode in 2 M KOH, the fabricated beta-FeMoO4 reveals remarkable specific capacitance of 600 F g(-...
The Fe 2p core-level XPS spectrum (Figure 2c) indicates the presence of mixed oxidization states of Fe2+ (711.1 eV and 724.9 eV) and Fe3+ (713.3 eV and 727.6 eV) with the satellite peak at 718.2 eV [36]. Figure 2d indicates the high-resolution Mo 3d with two prominent peaks at ...
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1 0 。C/min.X —Ray photoelectron spectroscopy(XPS1 was per- fo r med o n a V G E S C A LA B M K .II X .ray photoelectro n spec— tr ometer under A l K a radi ati on to co nfi rm the v alence o f metal s The d irect curr ent magnetic susceptibility data w...
The catalyst was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen adsorption-desorption isotherms. FeMoO4 showed excellent efficiency in activating PS for OG removal. More than 95...
The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis confirmed that the Fe-2(MoO4)(3) was a monoclinic crystal structure and mixed with element states in the nanocomposite. The electrochemical properties of the Fe-2(MoO4)(3)/CNTs nanocomposite were studies by ...
(ICSD)data and the modified XRD lattice parameters.The ratios of Fe/Mo on the surface resulted from XPS analysis are 1.47,1.63 and 2.22 respectively for nanosphere,nanorod and nanotube.The mixture of Fe_(2)(MoO_(4))_(3) with polytetrafluoroethylene dispersion are coated on glass carbon ...
Furthermore, the Na insertion/extraction mechanism of the composite is systematically investigated, based on in-situ X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Our work demonstrates that the graphene wrapped Fe-2(MoO4)(3) nanoparticle composite has great potential for ...
The obtained order of Mo5+ percentage is (Fe: 52% > Co: 39% > Ni: 32% > Cu: 21% > Zn: 18%), which was proved by X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations. Importantly, the percentage of Mo5+ is positively correlated with the NH3 ...
Using SEM(scanning electron microscope), XRD (X-ray diffraction) and XPS(X-ray photoelectron spectroscopy), the catalysts were characterized, and LSV(linear sweep voltammetry), CV(cyclic voltammetry) and EIS(electrochemical impedance) were used to characterize the electrodes. In 1 M KCl supporting ...