Performance Evaluation of Asymmetric Capacitive Deionization with Carbon Aerogel based Fiber-Paper Electrodes: Effect of Gold Deposition vs. Acid Treatment
Carbon aerogel fiber-paper based electrodes were subjected to nitric acid treatment and gold deposition in this study of capacitive deionization (CDI) experiments. The performance of each electrode was assessed based on their adsorption capacities in four different electrode-configurations (two symmetric and two asymmetric). The characterization of the electrodes was conducted following scanning electron microscopy, three-dimensional laser confocal microscopy, cyclic voltammetry and Fourier transform spectroscopy. Surface area and porosity measurements were conducted using BET isotherm analysis. The highest salt removal capacity in this study was 8.0 mg/g of NaCl in asymmetric electrodes configuration with the gold-deposited electrode used as anode and untreated/uncoated electrode used as cathode.
M. A. Ahmed and S. Tewari, "Performance Evaluation of Asymmetric Capacitive Deionization with Carbon Aerogel based Fiber-Paper Electrodes: Effect of Gold Deposition vs. Acid Treatment," Journal of Electroanalytical Chemistry, vol. 835, pp. 30-39, Elsevier B.V., Feb 2019.
The definitive version is available at https://doi.org/10.1016/j.jelechem.2019.01.006
Civil, Architectural and Environmental Engineering
Keywords and Phrases
CDI; Capacitive desalination; Deionization; Carbon-based electrodes; Nitric acid-treated electrodes; Gold-deposited electrodes; Asymmetric capacitive deionization
International Standard Serial Number (ISSN)
Article - Journal
© 2019 Elsevier B.V., All rights reserved.
01 Feb 2019