Synthesis of mesoporous carbons of high surface area and porosity by using polymer blends as template

Yu Chien Lin, Sheng Ho Wu, Che Wei Liu, Zheng Yi Lim, Cheng Wei Huang, Hong Ping Lin, Shiensen Deng, Ming Chang Yang, Chih Yuan Tang, Ching Yen Lin

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In this paper, we provided a new method to generate the carbonizable polymer-silica nanocomposite in one step by using different polymer blends of phenol formaldehyde (PF) and silica-gelling polymer (i.e., Pluronic F127, PEO6000 or gelatin) as the template. The PF-silica gelling polymer-silica nanocomposite was obtained from fast silicification in a highly diluted silica solution at pH∈≈∈5.0. Because the PF, one kind of carbon sources, was embedded in the as-synthesized nanocomposite, the mesoporous carbon was easily obtained from pyrolysis at 1,000°C and silica removal by diluted HF solution. The resulted mesoporous carbons possess a high surface area of 780-1,500 m 2 g -1 and large pore size of 2.6-13.7 nm. In addition, the morphology of the mesoporous carbons can be tailored to nano-sized particles and hollow spheres by using different silica gelator-PF polymer blends. In practice, the electrically conducting mesoporous carbons of high surface area and large pore size can be considered as good material for preparing the supercapacitor. The mesoporous carbons exhibit electric capacity of 75-158 Fg -1 in 2.0 M H 2SO 4 electrolyte solution at scan rate of 1-50 mVs -1.

Original languageEnglish
Pages (from-to)895-901
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume12
Issue number7-8
DOIs
Publication statusPublished - 2008 Aug 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

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