Structural and Optical Properties of NiO and Co3O4 for Energy and Sensor Applications: A Short Review
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| Natura: | Recurso digital |
| Lingua: | inglese |
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2026
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| _version_ | 1866901869510524928 |
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| author | Vaishnavi. K. Raut, Rutuja. S. Malave |
| author_facet | Vaishnavi. K. Raut, Rutuja. S. Malave |
| contents | <p class="MsoNormal"><span>Semiconductor-based gas sensors play an important role in modern technology for the detection of harmful and toxic gases. Among different metal oxide semiconductors, nickel oxide (NiO) and cobalt oxide (Co₃O₄) have attracted considerable attention due to their remarkable structural, optical including catalytic properties. NiO is a chemically stable p-type semiconductor widely used in batteries, photocatalysis, electrochromic devices, and gas sensing systems. Co₃O₄ is a mixed-valence oxide that exhibits strong surface catalytic activity, which enhances gas adsorption and surface reactions. A variety of analytical methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and UV–visible spectroscopy, are widely employed to examine the structural and optical characteristics of these materials. These techniques help to determine crystallite size, morphology, and optical band gap. Various nanostructures of NiO and Co₃O₄ such as nanoparticles, nanowires, and nanofibers, have shown promising performance in sensing and energy-related applications. Therefore, these materials are considered potential candidates for future smart sensing devices and energy storage technologies.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19788223 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Structural and Optical Properties of NiO and Co3O4 for Energy and Sensor Applications: A Short Review Vaishnavi. K. Raut, Rutuja. S. Malave Gas sensors, p-type semiconductor, Mixed-valence oxide, Gas adsorption, Energy storage devices, Nanostructures, Nanoparticles, Nanowires. <p class="MsoNormal"><span>Semiconductor-based gas sensors play an important role in modern technology for the detection of harmful and toxic gases. Among different metal oxide semiconductors, nickel oxide (NiO) and cobalt oxide (Co₃O₄) have attracted considerable attention due to their remarkable structural, optical including catalytic properties. NiO is a chemically stable p-type semiconductor widely used in batteries, photocatalysis, electrochromic devices, and gas sensing systems. Co₃O₄ is a mixed-valence oxide that exhibits strong surface catalytic activity, which enhances gas adsorption and surface reactions. A variety of analytical methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and UV–visible spectroscopy, are widely employed to examine the structural and optical characteristics of these materials. These techniques help to determine crystallite size, morphology, and optical band gap. Various nanostructures of NiO and Co₃O₄ such as nanoparticles, nanowires, and nanofibers, have shown promising performance in sensing and energy-related applications. Therefore, these materials are considered potential candidates for future smart sensing devices and energy storage technologies.</span></p> |
| title | Structural and Optical Properties of NiO and Co3O4 for Energy and Sensor Applications: A Short Review |
| topic | Gas sensors, p-type semiconductor, Mixed-valence oxide, Gas adsorption, Energy storage devices, Nanostructures, Nanoparticles, Nanowires. |
| url | https://doi.org/10.5281/zenodo.19788223 |