Evaluation of energetic heterogeneity and microporosity of activated carbon fibers on the basis of gas adsorption isotherms

Langmuir ◽  
1991 ◽  
Vol 7 (11) ◽  
pp. 2719-2722 ◽  
Author(s):  
M. Jaroniec ◽  
R. K. Gilpin ◽  
K. Kaneko ◽  
J. Choma
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Adsorption Isotherms ◽  
Gas Adsorption ◽  
Activated Carbon Fibers ◽  
Energetic Heterogeneity

Novel Structure of Microporous Activated Carbon Fibers and Their Gas Adsorption

1994 ◽  
Vol 349 ◽  
Author(s):  
Toshiaki Enoki ◽  
Norikazu Kobayashi ◽  
Atsuko Nakayama ◽  
Kazuya Suzuki ◽  
Chiaki Ishii ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Activated Carbon ◽  
Carbon Fibers ◽  
Gas Adsorption ◽  
Lattice Relaxation ◽  
Spin Lattice Relaxation ◽  
Activated Carbon Fibers ◽  
Dangling Bond ◽  
Spin Lattice ◽  
Helium Gas

ABSTRACTActivated carbon fibers are a kind of microporous carbon. Using dangling bond spins attached to the peripheries of the micropores, we investigated the microporous structures in relation to the heat-treatment and gas adsorption effects. Functional groups weakly bonded to the graphitic backbone are removed by the heat-treatment at moderate temperatures 200-400°C, resulting in the generation of a variety of dangling bond spins. The heattreatment above 500°C brings about homogenization of the dangling bond spins. For gas adsorption, the introduction of helium gas strongly enhances the spin-lattice relaxation rate for the dangling bond spins. In addition to a remarkably large condensation of helium gas in the microporous region, the enhancement proves the presence of ultra-micropores which can accommodate only the smallest diameter helium atoms.

Activated Carbon Fibers Prepared by One-Step Activation with CuCl2 for Highly Efficient Gas Adsorption

2020 ◽  
Vol 59 (44) ◽  
pp. 19793-19802
Author(s):  
Liang Wang ◽  
Ji Li ◽  
Guoqiang Gan ◽  
Shiying Fan ◽  
Xin Chen ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Gas Adsorption ◽  
Activated Carbon Fibers ◽  
Highly Efficient ◽  
One Step

Gas adsorption effects on structural and electrical properties of activated carbon fibers

1998 ◽  
Vol 109 (5) ◽  
pp. 1983-1990 ◽  
Author(s):  
Norikazu Kobayashi ◽  
Toshiaki Enoki ◽  
Chiaki Ishii ◽  
Katsumi Kaneko ◽  
Morinobu Endo
Keyword(s):  
Activated Carbon ◽  
Electrical Properties ◽  
Carbon Fibers ◽  
Gas Adsorption ◽  
Activated Carbon Fibers ◽  
Adsorption Effects ◽  
Structural And Electrical Properties

Energetic heterogeneity of oxidized activated carbon fibers

1992 ◽  
Vol 30 (4) ◽  
pp. 239-243 ◽  
Author(s):  
M. Jaroniec ◽  
J. Choma ◽  
K. Kaneko ◽  
K. Kakei
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Energetic Heterogeneity ◽  
Oxidized Activated Carbon

Oxidation of Activated Carbon Fibers:  Effect on Pore Size, Surface Chemistry, and Adsorption Properties

1999 ◽  
Vol 11 (12) ◽  
pp. 3476-3483 ◽  
Author(s):  
Christian L. Mangun ◽  
Kelly R. Benak ◽  
Michael A. Daley ◽  
James Economy
Keyword(s):  
Activated Carbon ◽  
Surface Chemistry ◽  
Pore Size ◽  
Carbon Fibers ◽  
Adsorption Properties ◽  
Activated Carbon Fibers

Visualized observation of pores in activated carbon fibers by HRTEM and combined image processor

1998 ◽  
Vol 5 (3-4) ◽  
pp. 261-266 ◽  
Author(s):  
M. Endo ◽  
T. Furuta ◽  
F. Minoura ◽  
C. Kim ◽  
K. Oshida ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Image Processor
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