Efficient oxygen-evolution reaction catalysts are required for the cost-effective generation of solar fuels. Metal selenides have been reported as promising oxygen-evolution catalysts; however, their active forms are yet to be elucidated. Here we show that a representative selenide catalyst, nickel selenide, is entirely converted into nickel hydroxide under oxygen-evolution conditions. This res...

Transition Metal Dichalcogenides Seongin Hong, Sunkook Kim, and colleagues present the first report which not only proposes a novel approach to improve stability of two-dimensional transition metal dichalcogenides based field-effect transistors but also implements complementary oxide semiconductor inverter circuit using it. In article number 2101012, authors develop high-stability tungsten dise...

Using the technique of impedance spectroscopy, data on effect magnitude variable signal and constant bias kinetic characteristics Ag x MoSe 2 samples were obtained. The temperature parameters spectra studied compounds their dielectric characteristics, which analyzed within framework electrical modulus formalism, is also shown. Keywords: impedance, intercalates, molybdenum diselenide, silver, pe...

This study investigates the efficacy of diphenyl diselenide [(PhSe)2] in attenuating methylmercury- (MeHg-)induced toxicity in rats. Adult rats were treated with MeHg [5 mg/kg/day, intragastrically (i.g.)] and/ or (PhSe)2 [1 mg/kg/day, intraperitoneally (i.p.)] for 21 days. Body weight gain and motor deficits were evaluated prior to treatment, on treatment days 11 and 21. In addition, hepatic a...

The extraordinary electronic structures of monolayer transition metal dichalcogenides, such as the spin-valley-coupled band edges, have sparked great interest for potential spintronic and valleytronic applications based on these two-dimensional materials. In this work, we report the experimental observation of quasi-particle interference patterns in monolayer WSe2 using low-temperature scanning...

The features of charge transfer in electrochemical cells with electrodes various types and an intercalated compound Ag x HfSe 2 (x=0.1,0.2) as electrolyte were studied by the method impedance spectroscopy. Based on analysis obtained data, presence mixed electron-ionic conductivity this was shown, numbers ionic electron these compounds determined for first time. different nature relaxation proce...

A detailed investigation of the self-assembled monolayers of diphenyl disulfide (DDS), diphenyl diselenide (DDSe), and naphthalene disulfide (NDS) on polycrystalline gold films using surface-enhanced Raman spectroscopy (SERS), X-ray photoelectron spectroscopy (XPS), and electrochemistry is presented. Whereas DDS dissociatively chemisorbs on Au, in both DDSe and NDS, the Se-Se and S-S bonds, res...