Synthesis of porous carbon and silica spheres using PEO-PF polymer blends

Chun Yi Chang-Chien, Chun Han Hsu, Hong Ping Lin, Chih Yuan Tang, Ching Yen Lin

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3 Citations (Scopus)

Abstract

In this paper, we performed a physical mixture of PEO and PF polymers (i.e. a polymer blend) as an organic template for synthesizing PF-PEO-silica homogeneous composites in a dilute silicate solution at pH = 4.0-5.0. The PF-PEO-silica composites exhibit spherical morphology, in micrometer dimension, and the sphere size is dependent on the pH value of the solution. After undergoing calcination to remove the organic part of the PF-PEO-silica composites with and without the hydrothermal treatment, porous silica spheres of different pore sizes were obtained. Due to the existence of the carbonizing PF polymer in the PF-PEO-silica composite, porous carbon spheres can be conveniently obtained from pyrolysis of the PF-PEO-silica composites under a N 2 atmosphere and HF-etching procedures. TEM images demonstrate that the mesostructures of the mesoporous silica and porous carbons are disordered.

Original languageEnglish
Pages (from-to)195-199
Number of pages5
JournalJournal of Porous Materials
Volume13
Issue number3
DOIs
Publication statusPublished - 2006 Aug

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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