A simple one-step chemical method is employed for the successful synthesis of CuO(50%)-ZnO(50%) nanocomposites (NCs) and investigation their gas sensing properties. The X-ray diffraction studies revealed that these CuO-ZnO NCs display a hexagonal wurtzite-type crystal structure. average width 50-100 nm length 200-600 were confirmed by transmission electron microscopic images, 1:1 proportion Cu Zn composition was energy-dispersive spectra, i.e., NC studies. exhibit superior performance with...

Cu2ZnSnS4 (CZTS) was synthesized by the sonochemical method using 2-methoxyethanol as solvent and subsequently decorated onto graphene oxide (GO modified Hummers' method) two different approaches such in situ growth ex synthesis followed deposition. Preliminary characterizations indicated that CZTS belongs to kesterite structure with a sphere-like morphology. The situ-synthesized CZTS/GO (I-CZTS/GO) composite is used an efficient electrocatalyst for hydrogen evolution reaction (HER) which...

A novel noble metal-free Co-doped CZTS-based nano-electrocatalyst fabricated by employing a sonochemical method for the enhanced hydrogen evolution reaction (HER) and it shows superior HER performance exhibits excellent current stability.

Abstract We report here non‐enzymatic electrochemical biosensing of H 2 O using a highly stable, metal‐free, tyramine functionalized graphene (T‐GO) based electrocatalytic system. The surface functionalization on was carried out chemically. obtained sheets were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD) as well photoelectron (XP), Raman, FT‐IR and UV‐visible spectroscopy. More significantly, the combined results from morphological structural studies show...

Metal free tyramine functionalized graphene oxide (T-GO) is a promising electrocatalyst for oxygen evolution reaction (OER) in alkaline medium having high activity and stability, resulting from the active sites.

This review provides a comprehensive overview of the production and modification CZTS nanoparticles (NPs) their application in electrocatalysis for water splitting. Various aspects, including surface modification, heterostructure design with carbon nanostructured materials, tunable electrocatalytic studies, are discussed. A key focus is synthesis small reactivity, emphasizing sonochemical method's role formation. Despite CZTS's affordability, it often exhibits poor hydrogen evolution...

Using emergent highly proficient and inexpensive non-noble metal-based bifunctional electrocatalysts to overall water splitting reaction is a pleasingly optional approach resolve greenhouse gases energy anxiety. In this work, oleylamine-functionalized graphene oxide/Cu2ZnSnS4 composite (OAm-GO/CZTS) prepared investigated as higher electrocatalyst for hydrogen evolution (HER) oxygen (OER). The OAm-GO/CZTS shows brilliant electrocatalytic performance durability toward H2 O2 in both acidic...

Abstract Herein, we depict that the consequential nickel/nickel oxide‐reduced graphene oxide (Ni/NiO‐rGO) hybrid materials synthesized by sol‐gel approach can give as competent electrocatalyst for oxidative determination of ethanol in alkaline condition. Ni/NiO‐rGO based electrochemical sensor shows rapid and highly sensitive linear sweep voltametric (LSV) response to at an ultra‐low oxidation potential 0.33 V vs. SCE. Moreover, demonstrates stable (current potential) also with low charge...

In the present work, Cu2ZnSnS4 (CZTS) thin films have been fabricated onto glass substrate by simple and economic chemical bath deposition technique, using optimized temperature of 50°C time 60 min, which is significantly lower than earlier reports. The CZTS were characterized for morphological, compositional, optical electrical properties scanning electron microscopy, energy dispersive X-ray analysis, UV-vis spectrophotometer I-V system photosensitivity.

In the present work, Cu2ZnSnS4 (CZTS) thin films have been fabricated onto glass substrate by simple and economic chemical bath deposition technique1, effect of temperature is reported. The temperatures used were 50°C 60°C for a time 60 min, which are significantly lower than earlier reports. These CZTS characterized optical, electrical, morphological elemental properties using, UV-Vis spectrophotometer, I-V system photosensitivity, two probe resistivity resistivity, scanning electron...

Herein Fe doped SnO2 nanoparticles have been synthesized using simple, cost effective and ecofriendly biosynthesis method, in which remnant water (ideally kitchen waste) collected from soaked Bengal gram beans (Cicer arietinum L.) was used. This extract consists of different bio-molecules acted as complexing well capping agents for synthesis Fe-doped nanoparticles. The X-ray powder diffraction (XRD) Field-emission scanning electron microscopy (FE-SEM) revealed uniform size distribution with...

The Al2O3 thin film were prepared by successive ionic layer adsorption and reaction (SILAR) technique annealed at 250 °C. Thereafter, Ni was ultrasonically intercalated in films for different sonication time period of 5 10s, subsequently °C to form NiO-Al2O3. further characterized using scanning electron microscopy, energy dispersive X-ray analysis, UV-Vis spectrophotometer I-V system, study morphological, compositional, optical electrical properties.