title: The study of capacitive deionization behavior of a carbon nanotube electrode from the perspective of charge efficiency.
abstract: In this work, the capacitive deionization (CDI) performance of a single-walled carbon nanotube (CNT) electrode has been studied from the point view of charge efficiency theory. It is revealed here that the charge efficiency of a CNT electrode is strongly dependent upon the cell voltage and solution concentration. Either the high cell voltage or the low ionic strength results in a high charge efficiency, implying that CDI is expected to be a promising technique for an aqueous solution with low ionic strength. Additionally, it is found that the high decay constant and high electrical double-layer capacity are beneficial to enhance electrosorption performance.
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Haibo
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Sen
authors.initials: S
authors.lastname: Liang
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Mangmang
authors.initials: M
authors.lastname: Gao
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Guolong
authors.initials: G
authors.lastname: Li
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Jin
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory of Ningxia for Photovoltaic Materials, Ningxia University, Ningxia 750021, China E-mail: haib.lee@gmail.com.
authors.forename: Lijun
authors.initials: L
authors.lastname: He
mesh_terms: D004563:Electrochemistry; D004566:Electrodes; D007477:Ions / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000295:instrumentation
chemical_list: D007477:Ions; D037742:Nanotubes, Carbon