Sol-gel synthesis and gas adsorption properties of CuCl modified mesoporous alumina

Y. Wang, Y. S. Lin

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Cuprous chloride (CuCl) modified unsupported γ-alumina membranes and adsorbent granules were synthesized by sol-gel processing followed by wet-impregnation of CuCl. The CuCl coated γ-alumina remains mesoporous with a uniform pore size distribution and a large surface area. The mesoporous alumina granules, prepared by a sol-gel oil-drop process, exhibit excellent mechanical strength and attrition resistance. The CuCl modified γ-alumina preferentially adsorbs ethylene and carbon monoxide, with a saturated adsorption capacity of 0.67 and 0.78 mmol/g, respectively. Both equilibrium capacity and kinetic rate for adsorption of ethylene and carbon monoxide on the CuCl modified γ-alumina are much larger than those for ethane and carbon dioxide. These results indicate the potential use of the sol-gel derived CuCl modified γ-alumina for separation of ethylene or carbon monoxide from its gas mixture containing ethane or carbon dioxide.

Original languageEnglish (US)
Pages (from-to)185-195
Number of pages11
JournalJournal of Sol-Gel Science and Technology
Volume11
Issue number2
DOIs
StatePublished - Jul 1998
Externally publishedYes

Fingerprint

Gas adsorption
Aluminum Oxide
Sol-gels
Alumina
aluminum oxides
chlorides
gels
adsorption
Carbon Monoxide
synthesis
gases
Carbon monoxide
carbon monoxide
Ethylene
Ethane
ethylene
dioxides
Carbon Dioxide
ethane
carbon dioxide

Keywords

  • Adsorption
  • Carbon monoxide
  • Cuprous chloride
  • Ethylene
  • Gamma-alumina

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Sol-gel synthesis and gas adsorption properties of CuCl modified mesoporous alumina. / Wang, Y.; Lin, Y. S.

In: Journal of Sol-Gel Science and Technology, Vol. 11, No. 2, 07.1998, p. 185-195.

Research output: Contribution to journalArticle

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AB - Cuprous chloride (CuCl) modified unsupported γ-alumina membranes and adsorbent granules were synthesized by sol-gel processing followed by wet-impregnation of CuCl. The CuCl coated γ-alumina remains mesoporous with a uniform pore size distribution and a large surface area. The mesoporous alumina granules, prepared by a sol-gel oil-drop process, exhibit excellent mechanical strength and attrition resistance. The CuCl modified γ-alumina preferentially adsorbs ethylene and carbon monoxide, with a saturated adsorption capacity of 0.67 and 0.78 mmol/g, respectively. Both equilibrium capacity and kinetic rate for adsorption of ethylene and carbon monoxide on the CuCl modified γ-alumina are much larger than those for ethane and carbon dioxide. These results indicate the potential use of the sol-gel derived CuCl modified γ-alumina for separation of ethylene or carbon monoxide from its gas mixture containing ethane or carbon dioxide.

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