Ấn phẩm:
Effect of rice husk morphology on the ability to synthesize silicon carbide by pyrolysis method
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Tóm tắt
Silicon carbide (SiC) is a mineral with good technical properties and high economic value. However, the synthesis of SiC is expensive because it is carried out in high temperature environment (above 1500 oC). The synthesis of SiC from biomass can significantly reduce the synthesis temperature. One commonly used biomass material for synthesizing SiC is rice husk. However, the ability to synthesize SiC depends on the shape of the rice husk. The influence of rice husk morphology on the ability to synthesize SiC was investigated in this study. The experimental results showed that the original rice husk would give better SiC formation capacity than the rice husk powder. The amount of SiC formed using the original rice husk when impregnated with sodium silicate solution and pyrolyzed at 1200 oC is 18.3 % (wt.%), while it only reached 15.12 % (wt.%) with rice husk powder. The results of analysis of mineral composition, functional groups, and morphology by X-ray diffraction (XRD), Fourier transform infrared spectroscopy(FT-IR), and scanning electron microscopy (SEM) showed that the polymorphs of SiC are α-SiC and β-SiC. These minerals are the basis for the production of SiC from rice husks, which can be used as a wear-resistant material.
Mô tả
Vietnam Journal of Science and Technology, Vol. 63, No. 5
Tác giả
Kieu, Do Trung Kien
Ong, Dieu Hanh, Nguyen, Hoang Thien Khoi
Huynh, Ngoc Minh
Người hướng dẫn
Nơi xuất bản
Nhà xuất bản
Viện Kỹ thuật Nhiệt đới, Viện Hàn lâm Khoa học và Công nghệ Việt Nam
Năm xuất bản
2025-11
ISSN tạp chí
Nhan đề tập
Từ khóa chủ đề
Silicon carbide , Rice husk , Pyrolysis , SiC/SiO2/C composite
URI
Tài liệu tham khảo
Thông tin bản quyền
Tệp tin
Kieu Do Trung Kien, Ong Dieu Hanh, Nguyen Hoang Thien Khoi, Huynh Ngoc Minh.pdf
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