Abstract
Electrodes composed of activated carbon cloth (ACC) coated with zinc oxide (ZnO) nanorods are compared with plain ACC electrodes, with respect to their desalination efficiency of a 17 mM NaCl solution at different applied potentials. Polarization of the ZnO nanorods increased the penetration depth and strength of the electric field between the electrodes, leading to an increase in the capacitance and charge efficiency at reduced input charge ratios. Uniform distribution of the electric field lines between two electrodes coated with ZnO nanorods led to faster ion adsorption rates, reduced the electrode saturation time, and increased the average desalination efficiency by ∼45% for all applied potentials. The electrodes were characterized for active surface area, capacitance from cyclic voltammetry, theoretical assessment of surface area utilization, and the magnitude of electric field force acting on an ion of unit charge for each potential.
| Original language | English |
|---|---|
| Pages (from-to) | 10113-10120 |
| Number of pages | 8 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 6 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - Jul 9 2014 |
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Keywords
- activated carbon cloth
- capacitive deionization
- charge efficiency
- electric field
- zinc oxide
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Enhancement in ion adsorption rate and desalination efficiency in a capacitive deionization cell through improved electric field distribution using electrodes composed of activated carbon cloth coated with zinc oxide nanorods. / Laxman, Karthik; Myint, Myo Tay Zar; Bourdoucen, Hadj; Dutta, Joydeep.
In: ACS Applied Materials and Interfaces, Vol. 6, No. 13, 09.07.2014, p. 10113-10120.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Enhancement in ion adsorption rate and desalination efficiency in a capacitive deionization cell through improved electric field distribution using electrodes composed of activated carbon cloth coated with zinc oxide nanorods
AU - Laxman, Karthik
AU - Myint, Myo Tay Zar
AU - Bourdoucen, Hadj
AU - Dutta, Joydeep
PY - 2014/7/9
Y1 - 2014/7/9
N2 - Electrodes composed of activated carbon cloth (ACC) coated with zinc oxide (ZnO) nanorods are compared with plain ACC electrodes, with respect to their desalination efficiency of a 17 mM NaCl solution at different applied potentials. Polarization of the ZnO nanorods increased the penetration depth and strength of the electric field between the electrodes, leading to an increase in the capacitance and charge efficiency at reduced input charge ratios. Uniform distribution of the electric field lines between two electrodes coated with ZnO nanorods led to faster ion adsorption rates, reduced the electrode saturation time, and increased the average desalination efficiency by ∼45% for all applied potentials. The electrodes were characterized for active surface area, capacitance from cyclic voltammetry, theoretical assessment of surface area utilization, and the magnitude of electric field force acting on an ion of unit charge for each potential.
AB - Electrodes composed of activated carbon cloth (ACC) coated with zinc oxide (ZnO) nanorods are compared with plain ACC electrodes, with respect to their desalination efficiency of a 17 mM NaCl solution at different applied potentials. Polarization of the ZnO nanorods increased the penetration depth and strength of the electric field between the electrodes, leading to an increase in the capacitance and charge efficiency at reduced input charge ratios. Uniform distribution of the electric field lines between two electrodes coated with ZnO nanorods led to faster ion adsorption rates, reduced the electrode saturation time, and increased the average desalination efficiency by ∼45% for all applied potentials. The electrodes were characterized for active surface area, capacitance from cyclic voltammetry, theoretical assessment of surface area utilization, and the magnitude of electric field force acting on an ion of unit charge for each potential.
KW - activated carbon cloth
KW - capacitive deionization
KW - charge efficiency
KW - electric field
KW - zinc oxide
UR - http://www.scopus.com/inward/record.url?scp=84904108535&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84904108535&partnerID=8YFLogxK
U2 - 10.1021/am501041t
DO - 10.1021/am501041t
M3 - Article
AN - SCOPUS:84904108535
VL - 6
SP - 10113
EP - 10120
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 13
ER -