Thin films of graphene decorated with NiS2 hybrid sensor for detection of NO2 gas

Tailoring the phase composition of carbon-coated nickel sulfides to achieve a high specific capacitance

“…The band appearing at around 622 cm −1 is assigned to the stretching vibration of Ni–S. 40,41 The typical bands at 1410 and 1545 cm −1 are attributed to the C–O (alkoxy) and –CC stretching vibrations due to the carbon coating, respectively. 42,43 In addition, C–N and –NH 2 vibration peaks were seen at 1066 and 1685 cm −1 , respectively.…”

“…6a presents the FTIR spectra of nanohybrids of NiS@C0, NiS 2 /NiS@C1 and NiS 2 /NiS@C2. The band appearing at around 622 cm −1 is assigned to the stretching vibration of Ni-S. 40,41 The typical bands at 1410 and 1545 cm −1 are attribu-…”

One-step potentiostatic electrodeposition of NiS–NiS2 on sludge-based biochar and its application for a non-enzymatic glucose sensor

“…The binding energies at 855.9 eV and 861.7 eV were indexed to NiS 2 and Ni(OH) 2 , respectively. 7,25 The main peak of the Ni 2p 3/2 was tted with two peaks at 853.4 eV and 856.0 eV in Fig. 2C were assigned to NiS and NiS 2 .…”

Rapid detection of caffeic acid in food beverages using a non-enzymatic electrochemical sensor based on a Bi2S3/CNF nanocomposite

“…14 In recent years, with advancements in nanomaterials, electrochemical sensors have been developed and utilized for detecting various food additives. In particular, metal suldes such as Bi 2 S 3 , 15 CoS 2 , 16 MoS 2 , 17 WS 2 , 18 SnS 2 , 19 and Cu 2 S 20 have gained widespread attention. Remarkably, Bi 2 S 3 nanoparticles exhibit excellent exotic, optical, magnetic, and electrical properties.…”