TY - JOUR
T1 - Surfactant-assisted hydrothermal crystallization of nanostructured lithium metasilicate (Li2SiO3) hollow spheres
T2 - II - Textural analysis and CO2-H2O sorption evaluation
AU - Ortiz-Landeros, José
AU - Gómez-Yáñez, Carlos
AU - Pfeiffer, Heriberto
N1 - Funding Information:
This work was financially supported by the ICyT-DF ( 179/2009 ) and PAPIIT-UNAM ( IN100609 ) projects. J. Ortiz-Landeros thanks to CONACYT and PIFI-IPN for financial support. Authors thank to Miguel A. Canseco for technical help.
PY - 2011/8
Y1 - 2011/8
N2 - In a previous work, the synthesis and structural-microstructural characterization of different nanocrystalline lithium metasilicate (Li 2SiO3) samples were performed. Then, in this work, initially, a textural analysis was performed over the same samples. Li 2SiO3 samples prepared with a non-ionic surfactant (TRITON X-114) presented the best textural properties. Therefore, this sample was selected to evaluate its water vapor (H2O) and carbon dioxide (CO2) sorption properties. Sorption experiments were performed at low temperatures (30-80 °C) in presence of water vapor using N2 or CO2 as carrier gases. Results clearly evidenced that CO2 sorption on these materials is highly improved by H2O vapor, and of course, textural properties enhanced the H2O-CO2 sorption efficiency, in comparison with the solid-state reference sample.
AB - In a previous work, the synthesis and structural-microstructural characterization of different nanocrystalline lithium metasilicate (Li 2SiO3) samples were performed. Then, in this work, initially, a textural analysis was performed over the same samples. Li 2SiO3 samples prepared with a non-ionic surfactant (TRITON X-114) presented the best textural properties. Therefore, this sample was selected to evaluate its water vapor (H2O) and carbon dioxide (CO2) sorption properties. Sorption experiments were performed at low temperatures (30-80 °C) in presence of water vapor using N2 or CO2 as carrier gases. Results clearly evidenced that CO2 sorption on these materials is highly improved by H2O vapor, and of course, textural properties enhanced the H2O-CO2 sorption efficiency, in comparison with the solid-state reference sample.
KW - CO absorption
KW - H O adsorption
KW - Hydrothermal crystallization
KW - Lithium metasilicate
KW - Textural analysis
UR - http://www.scopus.com/inward/record.url?scp=79960700102&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2011.06.027
DO - 10.1016/j.jssc.2011.06.027
M3 - Artículo
SN - 0022-4596
VL - 184
SP - 2257
EP - 2262
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 8
ER -