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14. Kinetics and thermodynamics study for electrosorption of NaCl onto carbon nanotubes and carbon nanofibers electrodes

Author

Likun Pan, Changqing Sun, Linda Zou, Yankun Zhan, Zhuo Sun, Haibo Li, Yanping Zhang, Li, Haibo, Pan, Likun, Zhang, Yanping, Zou, Linda, Sun, Changqing, Zhan, Yankun, and Sun, Zhuo

Subjects
y chemical vapor deposition, kinetics and thermodynamics analyses, Materials science, Composite number, Inorganic chemistry, Kinetics, electrosorption of NaCl onto CNTs–CNFs electrodes, General Physics and Astronomy, Thermodynamics, Langmuir isotherm, Carbon nanotube, Chemical vapor deposition, electrosorption performance, law.invention, symbols.namesake, Physisorption, law, Physical and Theoretical Chemistry, carbon nanotubes, Carbon nanofiber, carbon nanofibers composite films (CNTs–CNFs, physisorption process, Langmuir adsorption model, first-order kinetics model, Electrode, symbols, hydrophobic–hydrophilic transition
Abstract

The carbon nanotubes and carbon nanofibers composite films (CNTs-CNFs) were fabricated by chemical vapor deposition. The electrosorption performance of CNTs-CNFs films at different solution temperatures was studied. It is found that the salt removal decreases from 45.4% to 33% due to hydrophobic-hydrophilic transition taking place on the surface of CNTs-CNFs films, when solution temperature ranges from 281 to 295 K. The electrosorption isotherm investigation shows Langmuir isotherm can better describe experimental data. Meanwhile, the kinetics and thermodynamics analyses indicate that the electrosorption of NaCl onto CNTs-CNFs electrodes follows first-order kinetics model and is driven by a physisorption process. Refereed/Peer-reviewed

Published
2010

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