Beneficial effects of phosphoric acid as an additive in the preparation of activated carbon fibers from Nomex aramid fibers by physical activation

2002 ◽  
Vol 77-78 ◽  
pp. 237-244 ◽  
Author(s):  
F Suárez-Garcı́a ◽  
A Martı́nez-Alonso ◽  
J.M.D Tascón
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Physical Activation ◽  
Activated Carbon Fibers ◽  
Aramid Fibers ◽  
Beneficial Effects

Preparation and Characterization of Activated Carbon Fibers from Jute Fibers by Phosphoric Acid Activation

2012 ◽  
Vol 184-185 ◽  
pp. 1110-1113 ◽  
Author(s):  
Li Fen He ◽  
Qi Xia Liu ◽  
Tao Ji ◽  
Qiang Gao
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Optimum Conditions ◽  
Activation Time ◽  
Activation Temperature ◽  
Jute Fibers ◽  
Activating Agent

Various jute-based activated carbon fibers were prepared by using jute fibers as raw materials and phosphoric acid as activating agent. The effects of three main factors such as concentration of activating agent, activation temperature and activation time on the yield and adsorptive properties of active carbon fibers were investigated via orthogonal experiments. The surface physical morphology of jute-based activated carbon fiber was also observed by using Scanning Electron Microscope. Results showed that the optimum conditions were phosphoric acid concentration of 4 mol/L, activation temperature of 600 °C and activation time of 1h. The yield, iodine number and amount of methylene blue adsorption of the active carbon fiber prepared under optimum conditions were 37.99 %, 1208.87 mg/g and 374.65 mg/g, respectively.

Macroporous Activated Carbon Fibers from Rayon Precursors Impregnated with Phosphoric Acid

2006 ◽  
Vol 43 (11) ◽  
pp. 1787-1792 ◽  
Author(s):  
Qi‐Lin Wu ◽  
Zhi‐Hai Zhang ◽  
Shu‐Ying Gu ◽  
Jing‐Hua Gong
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Activated Carbon Fibers

HEMP-derived activated carbon fibers by chemical activation with phosphoric acid

Fuel ◽  
2009 ◽  
Vol 88 (1) ◽  
pp. 19-26 ◽  
Author(s):  
J.M. Rosas ◽  
J. Bedia ◽  
J. Rodríguez-Mirasol ◽  
T. Cordero
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Chemical Activation ◽  
Activated Carbon Fibers

Studies on the structure of activated carbon fibers activated by phosphoric acid

2003 ◽  
Vol 87 (14) ◽  
pp. 2253-2261 ◽  
Author(s):  
Ruowen Fu ◽  
Ling Liu ◽  
Wenqiang Huang ◽  
Pingchun Sun
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Activated Carbon Fibers

Activated carbon fibers from Nomex by chemical activation with phosphoric acid

Carbon ◽  
2004 ◽  
Vol 42 (8-9) ◽  
pp. 1419-1426 ◽  
Author(s):  
Fabián Suárez-Garcı́a ◽  
Amelia Martı́nez-Alonso ◽  
Juan M.D Tascón
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Chemical Activation ◽  
Activated Carbon Fibers

Preparation and Pore Structure of Jute-Based Activated Carbon Fibers by Microwave Assisted H3PO4 Activation

2012 ◽  
Vol 184-185 ◽  
pp. 1428-1432 ◽  
Author(s):  
Qi Xia Liu ◽  
Tao Ji ◽  
Li Fen He ◽  
Qiang Gao
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Microwave Radiation ◽  
Carbon Fibers ◽  
Radiation Power ◽  
Activated Carbon Fibers ◽  
Optimum Conditions ◽  
Preparation Conditions ◽  
Radiation Time ◽  
Phosphoric Acid Concentration

Various jute-based activated carbon fibers were prepared by using jute fibers as raw materials, phosphoric acid as activating agent and activated by microwave heating. The effects of phosphoric acid concentration, microwave radiation power and microwave radiation time on the adsorption properties of activated carbon fibers were investigated to obtain optimum preparation conditions. The pore structure analysis of the activated carbon were carried out on a ASAP 2010 Surface Area and Porosimetry Analyzer. Results showed that optimum preparation conditions were phosphoric acid concentration of 4 mol/L, microwave radiation power of 385 W and microwave radiation time of 10 min. The iodine adsorption value of jute-based activated carbon fiber prepared under optimum conditions is 938.54 mg/g, the specific surface area was 1154.91 m2/g, the pore volume was 0.5997 cm3/g and the adsorption average pore diameter was 2.0772 nm. Majority of large holes in JACF prepared under optimum conditions were distributed in the diameter range of 2-4 nm, demonstrating a mesoporous structure.

Activated Carbon Fibers with a High Heteroatom Content by Chemical Activation of PBO with Phosphoric Acid

Langmuir ◽  
2012 ◽  
Vol 28 (13) ◽  
pp. 5850-5860 ◽  
Author(s):  
M. B. Vázquez-Santos ◽  
F. Suárez-García ◽  
A. Martínez-Alonso ◽  
J. M. D. Tascón
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Chemical Activation ◽  
Activated Carbon Fibers
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