Two different series of H2 sensors were prepared. The first series was based on n-type semiconducting SnO2 thin films, prepared by the sol–gel method. The effect of Au and Pt nanoparticles in SnO2 was investigated for gas sensor applications. The second series was based on p-type NiO thin films, which were grown by pulsed laser deposition on microscope glass or (100) Si substrates. The effect o...

Tin dioxide (SnO2), an n-type semiconductor with a wide band gap of 3.6 eV, has been widely used in photocatalytic degradation of organic dyes, photovoltaic devices, rechargeable lithium batteries, and so on. In particular, remarkable receptivity to variations in gaseous environments and excellent chemical stability have made SnO2 the bestknown gas-sensing material. Over the past decades, consi...

A major disadvantage of energy saving glass using tin oxide (SnO2) thin film is that SnO2 attenuates the mobile signal from passing through it. In order to improve such signal transmission, a frequency selective surface (FSS) structures are designed on SnO2 thin film. In this paper, SnO2 thin film with FSS structure was fabricated using combination of printed circuit board technology and reacti...

A rapid, wafer-level, dry process for in-situ synthesis, deposition of stable nanostructured, porous metal-oxide films for gas sensors is presented. Lace-like, nanostructured films of pure SnO2 featuring high porosity (98%) are selfassembled on a target substrate by flame spray pyrolysis (FSP). The nanoparticles are mainly polyhedral and monocrystalline with a grain size of 8.7 nm and crystal s...

The gas-sensing behaviour based on a dynamic measurement method of a single SnO2 gas sensor was investigated by comparison with the static measurement. The influencing factors of nonlinear response such as modulation temperature, duty ratio, heating waveform (rectangular, sinusoidal, saw-tooth, pulse, etc.) were also studied. Experimental data showed that temperature was the most essential fact...

Fast, sensitive and discriminating detection of hydrogen at room temperature is crucial for storage, transportation, and distribution of hydrogen as an energy source. One dimensional nanowires of SnO2 are potential candidates for improved H2 sensor performance. The single directional conducting continuous nanowires can decrease electrical noise, and their large active surface area could improve...

0.1016/j.nanoen.2 lsevier Ltd. All rig thors. : [email protected] Abstract Core–shell structured hollow SnO2–polypyrrole (PPy) nanocomposites (SnO2@PPy) with excellent electrochemical performance were synthesized using a hydrothermal method followed by an in situ chemical-polymerization route. The thickness of the polymerized amorphous PPy coating covering on the hollow SnO2 microspheres is abou...

In the present research, a simple electrochemical sensor based on carbon paste electrode (CPE) modified with ZnO-Zn2SnO4-SnO2 and graphene (ZnO-Zn2SnO4-SnO2/Gr/CPE) was developed for direct, simultaneous individual measurement of Acetaminophen (AC), Caffeine (Caf) Ascorbic acid (AA). The synthesized nanomaterials were investigated using scanning electron microscopy, X-ray Diffraction, Fourier-t...