Noh, Seong-Cheol Lee, Seung-Young Kim, Sungrye Yoon, Sungho Shul, Yong Gon Jung, Kwang-Deog 2024-01-20T08:31:27Z 2024-01-20T08:31:27Z 2021-09-02 2014-11-15 1387-1811 https://pubs.kist.re.kr/handle/201004/126113 Thermally stable SiC hollow spheres were prepared using SiO2 templates with two layers. At the calcination at higher than 1300 degrees C, the SiC hollow sphere could be obtained. The shell thickness of the porous SiC hollow spheres can be controlled by the molar ratio of TMS/TEOS. The pore volumes and BET surface areas of the template SiO2 increased with the molar ratio of TMS/TEOS, while those of the SiC/SiO2 and SiC spheres decreased. It is evident that the pore sizes of the SiC hollow spheres were not influenced by the TMS/TEOS ratio. The wall thickness of the SiC sample increased with an increase in the TMS/TEOS mole ratio. The prepared SiC hollow spheres with the surface area higher than 770 m(2)/g were thermally stable up to temperatures higher than 700 degrees C. (C) 2014 Elsevier Inc. All rights reserved. English ELSEVIER SURFACE-AREA SILICON RECOMMENDATIONS FABRICATION Synthesis of thermally stable porous SiC hollow spheres and control of the shell thickness Article 10.1016/j.micromeso.2014.07.053 1 MICROPOROUS AND MESOPOROUS MATERIALS, v.199, pp.11 - 17 MICROPOROUS AND MESOPOROUS MATERIALS 199 11 17 scie scopus 000342546800003 2-s2.0-84906337301 Chemistry, Applied Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article SURFACE-AREA SILICON RECOMMENDATIONS FABRICATION Silicon carbide Hollow sphere SiO2 template SiC synthesis Control thickness