Silicon carbide derived from silica sol and sugar

Martin, Hans-Peter; Müller, Eberhard; Knoll, Y.; Strienitz, R.; Schuster, G.

doi:10.1007/bf00586158

Cited by 15 publications

(4 citation statements)

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“…Although each SiC NC had a nonporous structure, the BET surface area of SiC NCs was a relatively high value of 175.76 m 2 /g, which is much larger than those of SiC NCs prepared via carbothermic reduction process. 16,17 These results were attributed to the 18 Thus, PC could be uniformly coated on each SiO 2 particles. The uniform coated carbon play a role of a barrier to aggregation together.…”

Section: Resultsmentioning

confidence: 80%

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Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet

Park

Kim

et al. 2016

J. Am. Ceram. Soc.

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SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO 2 /poly(vinyl butyral) mixtures are converted to SiO 2 /pyrolytic carbon composites via pyrolysis at low temperatures (500°C) in an Ar atmosphere. Subsequently, low-temperature magnesiothermic reduction and purification processes result in the formation of tiny SiC nanocrystals. The size of the synthesized SiC nanocrystals ranged from 3 to 12 nm, i.e., they are smaller than the SiO 2 precursor offering large specific surface area of 175.76 m 2 /g and are single phase as 3C-SiC. Hence, 3C-SiC nanocrystals were successfully synthesized using waste poly(vinyl butyral) through this simple, inexpensive, and scalable process, which will be a new application in the recycling industry.

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Section: Resultsmentioning

confidence: 80%

mentioning

confidence: 95%

Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet

Park

Kim

et al. 2016

J. Am. Ceram. Soc.

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“…(i) cooking at lower temperature (400-800 • C) in a controlled manner to remove volatiles and (ii) reacting the cooked rice husk at high temperature (>1300 • C) to form SiC [1,[4][5]. The potential feature of rice husk is their high silica content (15)(16)(17)(18)(19)(20) wt.%) with small amount of alkalis and trace elements [6,7]. Heating the husks produces amorphous carbon as by-product of cellulose carbonization, while silica remains unchanged.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of SiC and SiC/Si3N4 composite nano powders from waste material

Zawrah

Zayed

Ali

2012

Journal of Hazardous Materials

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“…Several authors have used silica sol as silicon resource for the production of SiC. [9][10][11][12] Fine and high purity b-SiC was produced in these processes.…”

Section: Introductionmentioning

confidence: 99%

Formation of spherical nanocrystalline silicon carbide via carbothermal reduction of water glass and sugar

Pan¹,

Zhang²,

Song³

2009

Materials Science and Technology

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A simple method was developed to synthesise spherical nanocrystalline silicon carbide via carbothermal reduction of water glass and sugar. The overall process is composed of three steps: the preparation of spray dried precursors, carbonisation of the precursors and carbothermal reduction. The precursors and products were characterised by XRD, infrared, Brunauer–Emmett–Teller, SEM and TEM. The results show that carbothermal reduction of the precursors could be completed at 1500°C for 2 h. The as prepared product is spherical nanocrystalline β-SiC powders with the diameter about 13·6 nm and the BET specific areas of 17 m2 g–1. In addition, the powder is of high purity, because sodium oxide in the precursor could be eliminated by the escape of sodium at high temperature.

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Silicon carbide derived from silica sol and sugar

Cited by 15 publications

References 1 publication

Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet

Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet

Synthesis and characterization of SiC and SiC/Si3N4 composite nano powders from waste material

Formation of spherical nanocrystalline silicon carbide via carbothermal reduction of water glass and sugar

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