NDLI: Synthesizing MgO with a high specific surface for carbon dioxide adsorption

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Rong Zhu, Xun Ding, Yu-Dong Song, Gan Liao, Qiang
Copyright Year	2015
Abstract	In this work, highly porous MgO was synthesized for CO2 adsorption by a simple and economic thermal decomposition of basic magnesium carbonate and magnesium oxalate. Characterizations of the synthesized samples were accomplished using scanning electron microscopy (SEM), powder X-ray diffraction (XRD), and nitrogen adsorption–desorption isotherms. The results showed that the synthesized MgO possessed a high BET surface area in a range of 161–252 m2 g−1 and a highly porous structure. Thermo gravimetric analysis revealed that the synthesized MgO not only showed good selectivity to CO2 but also yielded a CO2 adsorption capacity of as high as 7.59 wt%. Besides, in situ FTIR spectroscopy and CO2 TPD curves demonstrated that the adsorption mechanism of synthesized MgO was mainly attributable to chemisorption and it could be regenerated at relatively low temperature. This work provides a new way to synthesize MgO with a highly porous structure for CO2 adsorption.
Starting Page	30929
Ending Page	30935
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	5
Issue Number	39
Journal	RSC Advances
DOI	10.1039/c4ra15127e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	BET X-ray crystallography Gravimetric analysis Spectroscopy Chemisorption Adsorption FTIR Magnesium carbonate Magnesium Nitrogen Scanning electron microscope
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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