Improved CO2 adsorption capacity and cyclic stability of CaO sorbents incorporated with MgO

Farah Diana Mohd Daud, Kumaravel Vignesh, Srimala Sreekantan, Abdul Rahman Mohamed

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Calcium oxide (CaO) sorbents incorporated with magnesium oxide (MgO) were synthesized using a co-precipitation route. The sorbents were prepared with different MgO concentrations (from 5 wt% to 30 wt%). The as-prepared sorbents were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and BET surface area analysis techniques. The sintering effect of CaO sorbents was decreased after the incorporation of MgO. The sorbents with 5 wt% and 10 wt% of MgO retained their CO2 adsorption capacity over multiple cycles. Most importantly, CaO with 10 wt% MgO showed constant CO2 adsorption capacity over 30 carbonation cycles. The results revealed that CaO with 10 wt% MgO is sufficient to produce sorbents with high surface area, good structural stability and enhanced CO2 adsorption capacity.

Original languageEnglish
Pages (from-to)231-237
Number of pages7
JournalNew Journal of Chemistry
Volume40
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Fingerprint

Magnesium Oxide
Magnesia
Sorbents
Lime
Adsorption
Carbonation
Coprecipitation
Field emission
lime
Sintering
X ray diffraction
Scanning electron microscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Materials Chemistry

Cite this

Improved CO2 adsorption capacity and cyclic stability of CaO sorbents incorporated with MgO. / Daud, Farah Diana Mohd; Vignesh, Kumaravel; Sreekantan, Srimala; Mohamed, Abdul Rahman.

In: New Journal of Chemistry, Vol. 40, No. 1, 01.01.2016, p. 231-237.

Research output: Contribution to journalArticle

Daud, Farah Diana Mohd ; Vignesh, Kumaravel ; Sreekantan, Srimala ; Mohamed, Abdul Rahman. / Improved CO2 adsorption capacity and cyclic stability of CaO sorbents incorporated with MgO. In: New Journal of Chemistry. 2016 ; Vol. 40, No. 1. pp. 231-237.
@article{d13e21a1f58746f28ea6e9197cf74b8a,
title = "Improved CO2 adsorption capacity and cyclic stability of CaO sorbents incorporated with MgO",
abstract = "Calcium oxide (CaO) sorbents incorporated with magnesium oxide (MgO) were synthesized using a co-precipitation route. The sorbents were prepared with different MgO concentrations (from 5 wt{\%} to 30 wt{\%}). The as-prepared sorbents were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and BET surface area analysis techniques. The sintering effect of CaO sorbents was decreased after the incorporation of MgO. The sorbents with 5 wt{\%} and 10 wt{\%} of MgO retained their CO2 adsorption capacity over multiple cycles. Most importantly, CaO with 10 wt{\%} MgO showed constant CO2 adsorption capacity over 30 carbonation cycles. The results revealed that CaO with 10 wt{\%} MgO is sufficient to produce sorbents with high surface area, good structural stability and enhanced CO2 adsorption capacity.",
author = "Daud, {Farah Diana Mohd} and Kumaravel Vignesh and Srimala Sreekantan and Mohamed, {Abdul Rahman}",
year = "2016",
month = "1",
day = "1",
doi = "10.1039/c5nj02081f",
language = "English",
volume = "40",
pages = "231--237",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "Royal Society of Chemistry",
number = "1",

}

TY - JOUR

T1 - Improved CO2 adsorption capacity and cyclic stability of CaO sorbents incorporated with MgO

AU - Daud, Farah Diana Mohd

AU - Vignesh, Kumaravel

AU - Sreekantan, Srimala

AU - Mohamed, Abdul Rahman

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Calcium oxide (CaO) sorbents incorporated with magnesium oxide (MgO) were synthesized using a co-precipitation route. The sorbents were prepared with different MgO concentrations (from 5 wt% to 30 wt%). The as-prepared sorbents were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and BET surface area analysis techniques. The sintering effect of CaO sorbents was decreased after the incorporation of MgO. The sorbents with 5 wt% and 10 wt% of MgO retained their CO2 adsorption capacity over multiple cycles. Most importantly, CaO with 10 wt% MgO showed constant CO2 adsorption capacity over 30 carbonation cycles. The results revealed that CaO with 10 wt% MgO is sufficient to produce sorbents with high surface area, good structural stability and enhanced CO2 adsorption capacity.

AB - Calcium oxide (CaO) sorbents incorporated with magnesium oxide (MgO) were synthesized using a co-precipitation route. The sorbents were prepared with different MgO concentrations (from 5 wt% to 30 wt%). The as-prepared sorbents were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and BET surface area analysis techniques. The sintering effect of CaO sorbents was decreased after the incorporation of MgO. The sorbents with 5 wt% and 10 wt% of MgO retained their CO2 adsorption capacity over multiple cycles. Most importantly, CaO with 10 wt% MgO showed constant CO2 adsorption capacity over 30 carbonation cycles. The results revealed that CaO with 10 wt% MgO is sufficient to produce sorbents with high surface area, good structural stability and enhanced CO2 adsorption capacity.

UR - http://www.scopus.com/inward/record.url?scp=84953220909&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84953220909&partnerID=8YFLogxK

U2 - 10.1039/c5nj02081f

DO - 10.1039/c5nj02081f

M3 - Article

VL - 40

SP - 231

EP - 237

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 1

ER -