TY - JOUR
T1 - Enhanced CO2 Sorption on Ordered Mesoporous Carbon CMK-3 in the Presence of Water
AU - Zhou, Jia
AU - Su, Wei
AU - Sun, Yan
AU - Deng, Shuguang
AU - Wang, Xiaojing
N1 - Funding Information:
The support from the National Natural Science Foundation of China (No 21206108; 21406004) and the Tianjin Municipal Science and Technology Commission (No 14JCYBJC21200) is greatly appreciated. W.S. acknowledges the China Scholar Council Scholarship for supporting his visit to Arizona State University.
PY - 2016/3/10
Y1 - 2016/3/10
N2 - Mesoporous carbon CMK-3 was synthesized via a hard template method. The structures of the pores were characterized by N2 adsorption at 77K, XRD, and TEM examinations. The BET surface area and total pore volume were 1115 m2/g and 1.11 cm3/g, respectively. Adsorption isotherms of carbon dioxide on the CMK-3 in the presence of water were collected. At 275 K and 3.6 MPa, the CO2 sorption capacity was 42 mmol/g with a water to dry carbon weight ratio (Rw) of 2.35. This is 2.26 times as high as that for the dry CMK-3 sample and 23% higher than the highest CO2 sorption previously obtained on activated carbon with preadsorbed water. The enthalpy change obtained from the sorption isotherms was -55.6 kJ/mol, which is lower than the enthalpy for the formation of CO2 hydrate in pure water.
AB - Mesoporous carbon CMK-3 was synthesized via a hard template method. The structures of the pores were characterized by N2 adsorption at 77K, XRD, and TEM examinations. The BET surface area and total pore volume were 1115 m2/g and 1.11 cm3/g, respectively. Adsorption isotherms of carbon dioxide on the CMK-3 in the presence of water were collected. At 275 K and 3.6 MPa, the CO2 sorption capacity was 42 mmol/g with a water to dry carbon weight ratio (Rw) of 2.35. This is 2.26 times as high as that for the dry CMK-3 sample and 23% higher than the highest CO2 sorption previously obtained on activated carbon with preadsorbed water. The enthalpy change obtained from the sorption isotherms was -55.6 kJ/mol, which is lower than the enthalpy for the formation of CO2 hydrate in pure water.
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U2 - 10.1021/acs.jced.5b01063
DO - 10.1021/acs.jced.5b01063
M3 - Article
AN - SCOPUS:84960798560
SN - 0021-9568
VL - 61
SP - 1348
EP - 1352
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 3
ER -