Preparation and gas storage of high surface area microporous carbon derived from biomass source cornstalks.
Microporous carbon (MC) with a high surface area has been prepared from cornstalks through carbonization and KOH activation. The surface area of the obtained product varies to some extent but the pore size of the material remains within the micropore region as the concentration of KOH activating agent is increased. The MC we prepared exhibits H2 adsorption capacities up to 4.4 wt% at 77K and this material is also able to adsorb considerable amounts of CH4 and CO2. The high adsorption capacities for gases are attributed to the relatively narrow pore size and the high surface area of the porous carbon material.
Zhang
Feng
F
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
Ma
Hua
H
Chen
Jun
J
Li
Guo-Dong
GD
Zhang
Yu
Y
Chen
Jie-Sheng
JS
D000327:Adsorption; D018533:Biomass; D002244:Carbon / Q000378:metabolism*; D005740:Gases / Q000378:metabolism*; D006878:Hydroxides; D009584:Nitrogen; D016062:Porosity; D017680:Potassium Compounds; D013499:Surface Properties; D013696:Temperature; D003313:Zea mays / Q000378:metabolism*
D005740:Gases; D006878:Hydroxides; D017680:Potassium Compounds; D002244:Carbon; D009584:Nitrogen; C029943:potassium hydroxide