Simple synthesis of ultrafine amorphous silicon carbide nanoparticles by atmospheric plasmas

Zhou, Jia‐wen; Wang, Cheng; Ming, Song; Chen, Xianhui; Xia, Weidong

doi:10.1016/j.matlet.2021.130072

Cited by 18 publications

(6 citation statements)

References 6 publications

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“…The primary component at low binding energy corresponds to Si–C, while the peak at high binding energy is assigned to Si–O. An additional peak at 101 eV, signaling partial oxidation of SiC in the form of O–Si–C, is essential to avoid the broadening of the silica Si 2p component in comparison to the predominant SiC component . Overall, these findings confirmed the abundance of functional groups and oxidation layers on the surface of the product.…”

Section: Resultsmentioning

confidence: 99%

Development of High-Performance Polyindole/Silicon Carbide Nanocomposites for Optoelectrical and Sensing Applications

Gopika,

Arun,

Ramesan

2024

Langmuir

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In this study, silicon carbide (SiC)-reinforced polyindole (PIn) nanocomposites were prepared by a simple in situ polymerization method. The successful reinforcement of the nanofiller within the host matrix was characterized using different analytical techniques. The chemical bonding of SiC in the polymer was identified by the characteristic peak around 800 cm 1 using Fourier transform infrared spectroscopy (FT-IR). The increment in intensity of the absorption and enhanced crystallinity of the samples upon the addition of nanofillers were analyzed using UV− vis spectroscopy and X-ray diffraction (XRD). The prepared specimens showed reduced optical bandgap energy (3.188 eV) and Urbach energy (2.315 meV) with an improved refractive index (2.348). The effect of nanoparticles on the surface morphology of the nanocomposites was studied using scanning electron microscopy (SEM), and a uniform dispersion of fillers in the matrix was found for PInSiC7. A high-resolution transmission electron microscopy (HR-TEM) revealed the shape and average particle size of the sample. X-ray electron spectroscopy (XPS) measurements confirmed the formation of the nanocomposite by exhibiting the presence of all elements in the corresponding spectra. The thermal stability and glass transition temperature of the nanocomposites were significantly improved with the addition of SiC. The temperature-dependent AC conductivity, dielectric parameters, complex impedance, and electrical modulus were also evaluated using an impedance analyzer. The increased electrical characteristics of the PInSiC7 sample can be attributed to the uniform spread and strong synergetic interaction of SiC with PIn. The results thus showcased the potential of the samples for use in optical and energy storage applications. This study was also extended to understand the ammonia sensing properties, which make it possible to design and develop gas sensors using the PInSiC nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Development of High-Performance Polyindole/Silicon Carbide Nanocomposites for Optoelectrical and Sensing Applications

Gopika,

Arun,

Ramesan

2024

Langmuir

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“…Today, the synthesis of silicon carbide nanoparticles has become widespread among scientists around the world. There are many developed methods for the synthesis of silicon carbide nanoparticles, for example: sintering [13][14][15][16][17][18][19], combustion [20,21], selective method [22], sol-gel method [23][24][25][26], hydrothermal acid leaching [27], pyrolysis [28][29][30], pyrohydrolysis [31], low temperature synthesis [32,33], microwave synthesis [34][35][36][37], chemical vapor deposition [38][39][40][41][42], in situ growth [43,44], electric arc synthesis [45,46], etc.…”

Section: Silicon Carbide Synthesis Methodsmentioning

confidence: 99%

Synthesis and Properties of Silicon Carbide (Review)

Soltys

Mironyuk

Mykytyn

et al. 2023

Phys. Chem. Solid St.

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Silicon carbide is an extremely hard material that exhibits exceptional corrosion resistance as well as thermal shock resistance. Its high mechanical properties determine the increased performance of materials based on it. The combination of high thermal conductivity and low thermal expansion coefficient determines the stability of silicon carbide at high heating rates and under stationary thermal conditions. To date, significant progress has been made in the development of methods for the synthesis of various materials based on silicon carbide. The main synthesis methods that scientists use in their research are the sol-gel method, sintering, pyrolysis, microwave synthesis, chemical vapor deposition, etc. The use of "green" techniques in the synthesis of SiC has gained wide popularity due to environmental friendliness, renewability, and ease of implementation. This review analyzes modern research in the field of silicon carbide synthesis published in peer-reviewed professional journals.

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“…In recent years, research on SiC in the field of photoluminescence has been increasing [13][14][15][16][17][18][19][20][21][22]. Researchers have successively discovered photoluminescence peaks of SiC nanostructures in the 300-450 nm wavelength range and conducted related mechanism studies.…”

Section: Introductionmentioning

confidence: 99%

“…The synthesis steps of sol-gel method and carbon thermal reduction method are relatively complex, although the particle sizes are relatively small, but still above 50 nm [18,[25][26][27]. The arc plasma method is a newly developed preparation method [17,20]. This method can achieve continuous production and produce particles with smaller size, but it often requires the assistance of inert gas, which limits the amount of precursor entering and increases the production cost.…”

Section: Introductionmentioning

confidence: 99%

Preparation and luminescent properties of SiC nanoparticles by strong pulse discharge in organic liquid phase environment

Du,

Wei,

2024

Mater. Res. Express

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SiC nanoparticles with relatively uniform particle distribution were successfully prepared using a continuous strong pulse discharge method using hexamethyldisilane as the organic liquid phase environment. The samples were subjected to X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Raman spectroscopy (Raman) tests. XRD and Raman data indicate that the particle composition is mainly composed of β SiC. The electron microscope image illustrates particle-sizes ranging from 5-20 nm and existing in an agglomerated state. Further photoluminescence(PL) results indicate that the annealing temperature under vacuum conditions has a significant positive effect on the luminescence intensity.

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Simple synthesis of ultrafine amorphous silicon carbide nanoparticles by atmospheric plasmas

Cited by 18 publications

References 6 publications

Development of High-Performance Polyindole/Silicon Carbide Nanocomposites for Optoelectrical and Sensing Applications

Development of High-Performance Polyindole/Silicon Carbide Nanocomposites for Optoelectrical and Sensing Applications

Synthesis and Properties of Silicon Carbide (Review)

Preparation and luminescent properties of SiC nanoparticles by strong pulse discharge in organic liquid phase environment

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