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

Sung Woo Park; Jae Chan Kim; Byung Kook Kim; Dong Wan Kim; B. Gao

doi:10.1111/jace.14263

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

Sung Woo Park, Jae Chan Kim, Byung Kook Kim, Dong Wan Kim, B. Gao

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO₂/poly(vinyl butyral) mixtures are converted to SiO₂/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 SiO₂ precursor offering large specific surface area of 175.76 m²/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.

Original language	English
Pages (from-to)	1885-1888
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	99
Issue number	6
DOIs	https://doi.org/10.1111/jace.14263
Publication status	Published - 2016 Jun 1

Keywords

SiC nanocrystal
magnesiothermic reduction
poly(vinyl butyral)
recycling
waste

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/jace.14263

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Cite this

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title = "Synthesis of Silicon Carbide Nanocrystals Using Waste Poly(vinyl butyral) Sheet",

abstract = "SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO2/poly(vinyl butyral) mixtures are converted to SiO2/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 SiO2 precursor offering large specific surface area of 175.76 m2/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.",

keywords = "SiC nanocrystal, magnesiothermic reduction, poly(vinyl butyral), recycling, waste",

author = "Park, {Sung Woo} and Kim, {Jae Chan} and Kim, {Byung Kook} and Kim, {Dong Wan} and B. Gao",

note = "Funding Information: This study was supported by the R&D Center for Valuable Recycling (Global Top R&BD Program) of the Ministry of Environment (Project No.: 2014001170002) and by the institutional research program of the Korea Institute of Science and Technology (2E26081 16 054).",

year = "2016",

month = jun,

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doi = "10.1111/jace.14263",

language = "English",

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AU - Park, Sung Woo

AU - Kim, Jae Chan

AU - Kim, Byung Kook

AU - Kim, Dong Wan

AU - Gao, B.

N1 - Funding Information: This study was supported by the R&D Center for Valuable Recycling (Global Top R&BD Program) of the Ministry of Environment (Project No.: 2014001170002) and by the institutional research program of the Korea Institute of Science and Technology (2E26081 16 054).

PY - 2016/6/1

Y1 - 2016/6/1

N2 - SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO2/poly(vinyl butyral) mixtures are converted to SiO2/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 SiO2 precursor offering large specific surface area of 175.76 m2/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.

AB - SiC nanocrystals were prepared using waste poly(vinyl butyral) sheet as a carbon source. SiO2/poly(vinyl butyral) mixtures are converted to SiO2/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 SiO2 precursor offering large specific surface area of 175.76 m2/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.

KW - SiC nanocrystal

KW - magnesiothermic reduction

KW - poly(vinyl butyral)

KW - recycling

KW - waste

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