Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 9, Issue 9, Pages E23-E26Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2213354
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Electrosorption of ions from aqueous solutions with carbon nanotubes and nanofibers (CNTs-CNFs) composite film electrodes has been demonstrated. The low-cost, large area CNTs-CNFs composite film was directly grown on Ni plate by low-pressure, low-temperature thermal chemical vapor deposition. Successful purification of water with good reproducibility by electrosorption of CNTs-CNFs composite films was achieved because of optimal pore size distribution, which leads to lower electrical double-layer overlapping effect. The electrosorption capacity of CNTs-CNFs composite film electrodes was similar to 15-65 mu mol/g and comparable to carbon aerogels. The ion sorption followed a Langmuir isotherm, indicating monolayer adsorption. (c) 2006 The Electrochemical Society.
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