TY - JOUR
T1 - Preparation of activated carbon with high surface area for high-capacity methane storage
AU - Liu, Bingsi
AU - Wang, Wenshuo
AU - Wanga, Na
AU - Au, Chak Tong
N1 - Funding Information:
This work was supported by the Scientific Research Foundation (SRF) for Returned Overseas Chinese Scholars (ROCS), the State Education Ministry (SEM) ( Grant No. 2002–247 ), as well as the National Natural Science Foundation of China and BAOSTEEL Group Corporation ( Grant No. 50876122 ).
Funding Information:
We gratefully acknowledge the financial support of the Scientific Research Foundation (SRF) for Returned Overseas Chinese Scholars (ROCS), the State Education Ministry (SEM) (Grant No. 2002–247), as well as the National Natural Science Foundation of China and BAOSTEEL Group Corporation (Grant No. 50876122).
PY - 2014/9
Y1 - 2014/9
N2 - Activated carbon (AC) was fabricated from corncob, which is cheap and abundant. Experimental parameters such as particle size of corncob, KOH/char weight ratio, and activation temperature and time were optimized to generate AC, which shows high methane sorption capacity. AC has high specific surface area (3227 m2/g), with pore volume and pore size distribution equal to 1.829 cm3/g and ca. 1.7-2.2 nm, respectively. Under the condition of 2°C and less than 7.8 MPa, methane sorption in the presence of water (Rw = 1.4) was as high as 43.7 wt% methane per unit mass of dry AC. The result is significantly higher than those of coconut-derived AC (32 wt%) and ordered mesoporous carbon (41.2 wt%, Rw=4.07) under the same condition. The physical properties and amorphous chaotic structure of AC were characterized by N2 adsorption isotherms, XRD, SEM and HRTEM. Hence, the corncob-derived AC can be considered as a competitive methane-storage material for vehicles, which are run by natural gas.
AB - Activated carbon (AC) was fabricated from corncob, which is cheap and abundant. Experimental parameters such as particle size of corncob, KOH/char weight ratio, and activation temperature and time were optimized to generate AC, which shows high methane sorption capacity. AC has high specific surface area (3227 m2/g), with pore volume and pore size distribution equal to 1.829 cm3/g and ca. 1.7-2.2 nm, respectively. Under the condition of 2°C and less than 7.8 MPa, methane sorption in the presence of water (Rw = 1.4) was as high as 43.7 wt% methane per unit mass of dry AC. The result is significantly higher than those of coconut-derived AC (32 wt%) and ordered mesoporous carbon (41.2 wt%, Rw=4.07) under the same condition. The physical properties and amorphous chaotic structure of AC were characterized by N2 adsorption isotherms, XRD, SEM and HRTEM. Hence, the corncob-derived AC can be considered as a competitive methane-storage material for vehicles, which are run by natural gas.
KW - Activated carbon
KW - Adsorption
KW - Corncob
KW - Hydrate
KW - Methane storage
UR - http://www.scopus.com/inward/record.url?scp=84908155313&partnerID=8YFLogxK
U2 - 10.1016/S2095-4956(14)60198-4
DO - 10.1016/S2095-4956(14)60198-4
M3 - Journal article
AN - SCOPUS:84908155313
SN - 2095-4956
VL - 23
SP - 662
EP - 668
JO - Journal of Energy Chemistry
JF - Journal of Energy Chemistry
IS - 5
ER -