Tailoring of Structural, Morphological and Optical Properties of Boron Nitride/Nickel Oxide (BN100-x/NiOx) Nanocomposites

Boron nitride (BN) has encouraged researchers to use it in composite materials due to its different properties. BN-based nanocomposites have been synthesized using a modified chemical method. X-ray diffraction (XRD) results confirmed the formation of hexagonal-BN and nickel oxide (NiO) phases in sam...

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Bibliographic Details
Published in:Journal of cluster science 2021-07, Vol.32 (4), p.865-873
Main Authors: Singh, Kulwinder, Kaur, Manjot, Chauhan, Ishant, Meena, Ramovatar, Singh, Jagtar, Thakur, Anup, Kumar, Akshay
Format: Article
Language:English
Subjects:
Ammonia
Boron
Boron nitride
Catalysis
Chemical synthesis
Chemical vapor deposition
Chemistry
Chemistry and Materials Science
Crystal defects
Crystal structure
Electron density
Energy gap
Field emission microscopy
Gas sensors
Graphene
Inorganic Chemistry
Morphology
Nanochemistry
Nanocomposites
Nanostructured materials
Nickel oxides
Nitrates
Optical properties
Original Paper
Physical Chemistry
Spectrum analysis
X-ray diffraction
X-rays
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Summary:Boron nitride (BN) has encouraged researchers to use it in composite materials due to its different properties. BN-based nanocomposites have been synthesized using a modified chemical method. X-ray diffraction (XRD) results confirmed the formation of hexagonal-BN and nickel oxide (NiO) phases in samples. XRD analysis shows that samples are textured along (100) plane which distorts structure and leads to formation of defect states. The electron density difference between BN and NiO as well as textural growth are two main reasons for variation in diffraction peak intensities. Raman spectroscopic results also revealed that peak intensity and position shifts with increase in NiO content, due to the distortions induced by NiO incorporation confirming the presence of defect states. Field emission scanning electron microscopy (FESEM) results showed that morphology of synthesized nanocomposites varies with increase of NiO concentration. Ultra-violet (UV)-visible results revealed that the absorption edge is red-shifted with NiO content, consequently, the band-gap energy of composites get decreased. Distorted crystal structure and defect states are responsible for variation in structural, morphological as well as optical properties. Results suggested that the nanocomposites can be explored for photodetection as well as gas sensing applications. Graphical Abstract
ISSN:1040-7278
1572-8862
DOI:10.1007/s10876-020-01853-0