Synthesis of silicon carbide nanostructures via a simplified yajima process - Reaction at the vapor-liquid interface

Chia Hsin Wang*, Yu Hsu Chang, Ming Yu Yen, Chih Wei Peng, Chi Young Lee, Hsin-Tien Chiu

*Corresponding author for this work

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

The synthesis of β-SiC cages, cubes, and nanoparticles using Yajima process which include reaction at the vapor-liquid interface was discussed. It was found that both precursors Pre-I and Pre-II were composed of mixtures of polycarbosilane and NaCl. The linear polycarbosilane was probably wrapped around the NaCl crystal completely in the Pre-I. It was observed that the difference between the precursors generated pronounced shape variations in the final products of β-SiC. Analysis shows that the difference in appearance between Pre-I and Pre-II is the consequence of of the difference in interaction between the phase-separated solid products generated at the interface of the vapor-liquid/solid reactions.

Original languageEnglish
Pages (from-to)419-422
Number of pages4
JournalAdvanced Materials
Volume17
Issue number4
DOIs
StatePublished - 23 Feb 2005

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