caa a22 4500 606194959 CHVBK 20210128100916.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10934-015-0041-7 doi (NATIONALLICENCE)springer-10.1007/s10934-015-0041-7 Production of highly microporous carbons with large CO2 uptakesat atmospheric pressure by KOH activation of peanut shell char [Elektronische Daten] [Dawei Li, Yuanyu Tian, Liangjun Li, Junhua Li, Hui Zhang] Highly microporous carbons with large CO2 uptakes at atmospheric pressure were prepared by KOH activation of peanut shell char at different temperatures (680-780°C). The porous carbons (PCs) showed a microporosity of 99.0-99.5%, with micropore volume and specific surface area varying from 0.73 to 0.79ml/g and 1713 to 1893m2/g, respectively. The adsorption of CO2 onto the PCs was a physisorption process. The CO2 uptakes of the PCs increased with decreasing the activation temperature. The 680°C-activated sample showed a 1-bar CO2 uptake of 7.25mmol/g (0°C), which was among the highest values ever reported for biomass-based PCs. The high uptake was principally ascribable to its developed small micropores (<1nm). Besides, this PC displayed a large 1-bar CO2 uptake at 25°C (4.41mmol/g), fast CO2 adsorption rate, moderate CO2-over-N2 selectivity, and excellent recyclability. These adsorption properties showed that the peanut-shell-based PC was a promising adsorbent for CO2 capture or storage. Springer Science+Business Media New York, 2015 CO2 capture nationallicence Peanut shell nationallicence Adsorption nationallicence Biomass nationallicence Porous carbon nationallicence Li Dawei State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut Tian Yuanyu State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut Li Liangjun Research Institute of Unconventional Petroleum and Renewable Energy, China University of Petroleum (East China), 266580, Qingdao, China aut Li Junhua State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut Zhang Hui Engineering Research Center of Heavy Oil Process Ltd. Corp., CNOOC, 266500, Qingdao, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1581-1588 1380-2224 22:6<1581 2015 22 10934 https://doi.org/10.1007/s10934-015-0041-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-0041-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Dawei State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut NATIONALLICENCE 700 1- Tian Yuanyu State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut NATIONALLICENCE 700 1- Li Liangjun Research Institute of Unconventional Petroleum and Renewable Energy, China University of Petroleum (East China), 266580, Qingdao, China aut NATIONALLICENCE 700 1- Li Junhua State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), 266580, Qingdao, China aut NATIONALLICENCE 700 1- Zhang Hui Engineering Research Center of Heavy Oil Process Ltd. Corp., CNOOC, 266500, Qingdao, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1581-1588 1380-2224 22:6<1581 2015 22 10934