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
N1 - Publisher Copyright:
© The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2016.
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
U2 - 10.1039/c5nj02081f
DO - 10.1039/c5nj02081f
M3 - Article
AN - SCOPUS:84953220909
SN - 1144-0546
VL - 40
SP - 231
EP - 237
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 1
ER -