Highly CO selective Cu(I)-doped MIL-100(Fe) adsorbent with high CO/CO2 selectivity due to Π complexation: Effects of Cu(I) loading and activation temperature

The Ky Vo, Youn-Sang Bae, Bong Jun Chang, Su Young Moon, Jeong Hoon Kim, Jinsoo Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Cu(I) doping of octahedral MIL-100(Fe) was successfully performed by means of impregnation and consequent reduction under vacuum conditions. Although MIL-100(Fe) adsorbed CO2 better than CO, Cu(I)@MIL-100(Fe) showed selective CO adsorption compared to CO2 owing to π complexation between CO and Cu(I). Effects of Cu(I) loading concentration, activation temperature, and adsorption temperature upon CO/CO2 adsorption properties were systematically investigated. The adsorption behaviors of CO and CO2 on MIL-100(Fe) and Cu(I)@MIL-100(Fe) were well described by the dual-site Langmuir–Freundlich (DSLF) model. Ideal adsorbed solution theory (IAST) was used to predict adsorption isotherms of equimolar CO and CO2 mixtures and to predict CO/CO2 selectivities as a function of bulk pressure. The obtained results showed that 45 wt% Cu(I)-doped MIL-100(Fe) had CO adsorption capacity of 3.10 mmol g−1 and CO/CO2 selectivity of 420 at 298 K and 1 bar. In addition, a large CO working capacity of 1.39 mmol g−1 was observed for 45 wt% Cu(I)-doped MIL-100(Fe) in the pressure range of 10–100 kPa. Cu(I)-doped MIL-100(Fe) thus appears promising as an adsorbent material for effective CO/CO2 separation.

Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalMicroporous and Mesoporous Materials
Volume274
DOIs
Publication statusPublished - 2019 Jan 15

Fingerprint

Carbon Monoxide
adsorbents
Complexation
Adsorbents
selectivity
Chemical activation
activation
Adsorption
adsorption
Temperature
temperature
Adsorption isotherms
Impregnation
Doping (additives)
N(1)-methyl-2-lysergic acid diethylamide
Vacuum
isotherms
vacuum

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

@article{86e547bccc37463a9c2ec7c44666d579,
title = "Highly CO selective Cu(I)-doped MIL-100(Fe) adsorbent with high CO/CO2 selectivity due to Π complexation: Effects of Cu(I) loading and activation temperature",
abstract = "Cu(I) doping of octahedral MIL-100(Fe) was successfully performed by means of impregnation and consequent reduction under vacuum conditions. Although MIL-100(Fe) adsorbed CO2 better than CO, Cu(I)@MIL-100(Fe) showed selective CO adsorption compared to CO2 owing to π complexation between CO and Cu(I). Effects of Cu(I) loading concentration, activation temperature, and adsorption temperature upon CO/CO2 adsorption properties were systematically investigated. The adsorption behaviors of CO and CO2 on MIL-100(Fe) and Cu(I)@MIL-100(Fe) were well described by the dual-site Langmuir–Freundlich (DSLF) model. Ideal adsorbed solution theory (IAST) was used to predict adsorption isotherms of equimolar CO and CO2 mixtures and to predict CO/CO2 selectivities as a function of bulk pressure. The obtained results showed that 45 wt{\%} Cu(I)-doped MIL-100(Fe) had CO adsorption capacity of 3.10 mmol g−1 and CO/CO2 selectivity of 420 at 298 K and 1 bar. In addition, a large CO working capacity of 1.39 mmol g−1 was observed for 45 wt{\%} Cu(I)-doped MIL-100(Fe) in the pressure range of 10–100 kPa. Cu(I)-doped MIL-100(Fe) thus appears promising as an adsorbent material for effective CO/CO2 separation.",
author = "Vo, {The Ky} and Youn-Sang Bae and Chang, {Bong Jun} and Moon, {Su Young} and Kim, {Jeong Hoon} and Jinsoo Kim",
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language = "English",
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Highly CO selective Cu(I)-doped MIL-100(Fe) adsorbent with high CO/CO2 selectivity due to Π complexation : Effects of Cu(I) loading and activation temperature. / Vo, The Ky; Bae, Youn-Sang; Chang, Bong Jun; Moon, Su Young; Kim, Jeong Hoon; Kim, Jinsoo.

In: Microporous and Mesoporous Materials, Vol. 274, 15.01.2019, p. 17-24.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Highly CO selective Cu(I)-doped MIL-100(Fe) adsorbent with high CO/CO2 selectivity due to Π complexation

T2 - Effects of Cu(I) loading and activation temperature

AU - Vo, The Ky

AU - Bae, Youn-Sang

AU - Chang, Bong Jun

AU - Moon, Su Young

AU - Kim, Jeong Hoon

AU - Kim, Jinsoo

PY - 2019/1/15

Y1 - 2019/1/15

N2 - Cu(I) doping of octahedral MIL-100(Fe) was successfully performed by means of impregnation and consequent reduction under vacuum conditions. Although MIL-100(Fe) adsorbed CO2 better than CO, Cu(I)@MIL-100(Fe) showed selective CO adsorption compared to CO2 owing to π complexation between CO and Cu(I). Effects of Cu(I) loading concentration, activation temperature, and adsorption temperature upon CO/CO2 adsorption properties were systematically investigated. The adsorption behaviors of CO and CO2 on MIL-100(Fe) and Cu(I)@MIL-100(Fe) were well described by the dual-site Langmuir–Freundlich (DSLF) model. Ideal adsorbed solution theory (IAST) was used to predict adsorption isotherms of equimolar CO and CO2 mixtures and to predict CO/CO2 selectivities as a function of bulk pressure. The obtained results showed that 45 wt% Cu(I)-doped MIL-100(Fe) had CO adsorption capacity of 3.10 mmol g−1 and CO/CO2 selectivity of 420 at 298 K and 1 bar. In addition, a large CO working capacity of 1.39 mmol g−1 was observed for 45 wt% Cu(I)-doped MIL-100(Fe) in the pressure range of 10–100 kPa. Cu(I)-doped MIL-100(Fe) thus appears promising as an adsorbent material for effective CO/CO2 separation.

AB - Cu(I) doping of octahedral MIL-100(Fe) was successfully performed by means of impregnation and consequent reduction under vacuum conditions. Although MIL-100(Fe) adsorbed CO2 better than CO, Cu(I)@MIL-100(Fe) showed selective CO adsorption compared to CO2 owing to π complexation between CO and Cu(I). Effects of Cu(I) loading concentration, activation temperature, and adsorption temperature upon CO/CO2 adsorption properties were systematically investigated. The adsorption behaviors of CO and CO2 on MIL-100(Fe) and Cu(I)@MIL-100(Fe) were well described by the dual-site Langmuir–Freundlich (DSLF) model. Ideal adsorbed solution theory (IAST) was used to predict adsorption isotherms of equimolar CO and CO2 mixtures and to predict CO/CO2 selectivities as a function of bulk pressure. The obtained results showed that 45 wt% Cu(I)-doped MIL-100(Fe) had CO adsorption capacity of 3.10 mmol g−1 and CO/CO2 selectivity of 420 at 298 K and 1 bar. In addition, a large CO working capacity of 1.39 mmol g−1 was observed for 45 wt% Cu(I)-doped MIL-100(Fe) in the pressure range of 10–100 kPa. Cu(I)-doped MIL-100(Fe) thus appears promising as an adsorbent material for effective CO/CO2 separation.

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U2 - 10.1016/j.micromeso.2018.07.024

DO - 10.1016/j.micromeso.2018.07.024

M3 - Article

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EP - 24

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

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