X-Ray Photoelectron Spectroscopy Study of NaH2PO4/CeP2O7 Powder Electrolyte

This study employs X-ray photoelectron spectroscopy (XPS) to investigate the surface compositions and electronic structure of NaH2PO4/CeP2O7 powder electrolytes with potential applications in the field of energy storage devices. The samples were synthesized by chemical route method. The result reveals the presence of sodium, cerium, phosphorous and oxygen, with their respective states. The Ce 3d and P 2p spectra indicates the presence of Ce (IV) and PO43- species, respectively. The Na 1s and O 1s spectra suggest the presence of sodium phosphate and cerium phyrophosphates phases. The obtained results also explore the physical and chemical properties of prepared electrolytes such as oxidation states, elemental analysis and binding energy of prepared electrolytes. This study provides a detailed understanding of surface mechanism of NaH2PO4/CeP2O7 electrolytes. This work also gives a complete explanation of the surface mechanism and the existence of NaH2PO4/CeP2O7 elements in powder electrolytes, as well as identifies the chemical states based on the observed peak and binding energy, verifying the presence of elements in the samples.