The ultrafine monolayer 1 T/2H-MoS2: Preparation, characterization and amazing photocatalytic characteristics

Spinel Nickel Ferrite Nanoparticles Supported on a 1T/2H Mixed-Phase MoS2 Heterostructured Composite as a Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions

“…Compared to bulk MoS 2 , a significantly lower relative intensity of E 1 2g to A 1g modes indicates the edge-terminated structure of the as-synthesized MoS 2 . In addition, another four peaks at 148, 237, 336, and 281 cm –1 correspond to the J 1 , J 2 , J 3 , and E 1g modes of the 1T phase of MoS 2 . , Spinel-type NiFe 2 O 4 typically exhibits several Raman peaks in the range of 300–700 cm –1 due to the various modes ascribed to octahedral B sites occupied by both the Fe 3+ and Ni 2+ cations and tetrahedral A sites occupied by part of Fe 3+ cations . In the present study, the Raman spectrum recorded in the wavelength range of 125–500 cm –1 of as-synthesized NiFe 2 O 4 is seen with a broad peak centered at 397 cm –1 that corresponds to the E g mode of spinel-type NiFe 2 O 4 and is consistent with the previous literature reports (Figure b). , All the peaks of MoS 2 and NiFe 2 O 4 are also seen in the Raman spectra of the heterostructured composite strongly supporting the successful synthesis of the heterostructured composite comprising spinel-type NiFe 2 O 4 and 2H and 1T multiphase MoS 2 (Figure c).…”

Size-tunable MoS2nanosheets for controlling the crystal morphology and residual stress in sequentially deposited perovskite solar cells with over 22.5% efficiency

“…The MoS 2 nanosheets mentioned below were prepared via a concise one-step hydrothermal reaction with hexaammonium heptamolybdate tetrahydrate ((NH 4 ) 6 Mo 7 O 14 ·4H 2 O) and sodium ethyl xanthate (C 2 H 5 OC(S)SNa) as precursor materials, as shown in our previous work. 55 First, X-ray diffraction (XRD) spectra are used to identify the crystal structure of the as-synthesized MoS 2 nanomaterial powder, as presented in Fig. S1 †.…”

New g-C3N4/GO/MoS2 composites as efficient photocatalyst for photocathodic protection of 304 stainless steel

“…As for MoS 2 samples, the two diffraction peaks at 33.3°and 58.8°c orresponded well to MoS 2 (JCPDS 37-1492) (Zhang et al 2019a), which represented the (101) and (110) crystal planes, respectively. The 13.9°diffraction peak corresponding to the (002) crystal plane appeared at 10.3°, which was due to its interlayer expansion effect (Zhang et al 2020). According to the Bragg equation: 2dsinθ ¼ λ, the interlayer spacing of the (002) plane of the MoS 2 sample could be calculated.…”