A metalloporphyrinic compound with a high selectivity for N 2 and CO 2 separation

Xian Zhang, Wen Tong Cheng, Tomoyoshi Suenobu, Shunichi Fukuzumi, Ming Sheng Wang, Guo Cong Guo

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Using a hydrothermal reaction of SmCl3•6H2O, ZnBr2 and TPPS, a crystalline metalloporphyrinic compound (MPC), [SmZn(TPPS)H3O]n•2nH2O (1), was synthesized. The crystal structure of the MPC exhibits a condensed and robust 3-D porous open framework. We studied the adsorption and desorption isotherms for N2, H2 and CO2 conducted at 77 K and 273 K. They show different isotherms such as Type I, II and III isotherm behaviors. We found that low temperature is propitious for the title complex to adsorb more H2, but less N2. Compound 1 showed remarkably high selectivity for CO2-N2 separation, and good thermal stability. The temperature dependent magnetic susceptibility shows an antiferromagnetic-like behavior for 1.

Original languageEnglish
Pages (from-to)1225-1231
Number of pages7
JournalJournal of Porphyrins and Phthalocyanines
Volume19
Issue number12
DOIs
StatePublished - 1 Dec 2015

Keywords

  • crystal
  • lanthanide
  • photoluminescence
  • porphyrin
  • zinc

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