Structural investigation of (CuI)0.45–(Ag2WO4)0.55 solid electrolyte using X-ray photoelectron and laser Raman spectroscopies

Solar absorptance of copper–cobalt oxide thin film coatings with nano-size, grain-like morphology: Optimization and synchrotron radiation XPS studies

“…3. b-d) and the quantification analysis are presented in Table 1. It is commonly recognized that the Cu 2p 3/2 photoelectron peak around of 933.3-934.0 eV with shake-up satellite is due to the CuO (or Cu 2+ ), while many researchers identified that the Cu 2p 3/2 photoelectron peak at around of 932.5-932.8 eV is from the tetrahedral Cu + with its counterpart peak from octahedral Cu + located below the tetrahedral one [15,[28][29][30][31][32][33][34][35][36]. From Table 1, the octahedral and tetrahedral Cu + as well as the octahedral and paramagnetic Cu 2+ oxidation states are detected with the tetrahedral Cu + being the most prominent.…”

Structural Characterization of AgI–AgPO3–Ag2WO4 Superionic Conducting Glasses by Advanced Solid-State NMR Techniques

“…The incorporation of Ag 2 WO 4 gives rise to two additional bands at 910 and 870 cm –1 , which gradually shift toward 880 and 820 cm –1 with increasing tungstate content. On the basis of the spectrum of crystalline Ag 2 WO 4 shown before, and considering the data published in the literature on various tungsten phosphate glasses, ,− we may assign these bands to W–O stretching modes involving terminal oxygen. At x ≥ 20 the appearance of increased Raman scattering intensity near 800 cm –1 also gives evidence of W–O stretching modes involving W–O–W linkages.…”

“…Thus we tentatively attribute this spectroscopic feature to stretching modes involving P–O–W linkages. Finally, it should be noted that various low-temperature forms of Ag 2 WO 4 have been recently reported, in which the tungsten atoms are present in the form of tetrahedrally coordinated WO 4 2– units. − The Raman spectra of these compounds contain similar features. For example, the W–O stretching frequency in the metastable γ-Ag 2 WO 4 phase is found at 912 cm –1 , and a band at 768 cm –1 has been observed as well.…”

One-pot synthesis of Mn3O4-coupled Ag2WO4 nanocomposite photocatalyst for enhanced photooxidative desulfurization of thiophene under visible light irradiation

“…The Ag3d 5/2 and 3d 3/2 detected at 367.5 and 373.4 eV revealing the Ag + similar in oxide structure (Lin et al 2015;Zhu et al 2017). The W4f 7/2 and 4f 5/2 peaks detected at 35.4 and 37.6 eV are typically signified to W 4+ tungstate oxide structure (Zhu et al 2017;Premchand and Suthanthiraraj 2004). The peaks noticed at 642.1 eV and 654.2 are confirming the occurrence of Mn 3+ of Mn 3 O 4 (Ma et al 2019;Yao et al 2018).…”