Electrosorption behavior of cations with carbon nanotubes and carbon nanofibres composite film electrodes

Yang Gao; Likun Pan; Hai Bo Li; Yanping Zhang; Zhejuan Zhang; Yiwei Chen; Zhuo Sun

doi:10.1016/j.tsf.2008.09.065

Electrosorption behavior of cations with carbon nanotubes and carbon nanofibres composite film electrodes

Yang Gao
, Likun Pan^*
, Hai Bo Li
, Yanping Zhang
, Zhejuan Zhang
, Yiwei Chen
, Zhuo Sun

^*Corresponding author for this work

Ministry of Education of the People's Republic of China

Research output: Contribution to journal › Article › peer-review

133 Scopus citations

Abstract

The cost-effective, large area carbon nanotubes and carbon nanofibres (CNTs-CNFs) composite film was synthesized on graphite substrate by low pressure and low temperature thermal chemical vapor deposition. Cyclic voltammetry and ac impedance spectroscopy were employed to systematically study the electrochemical properties of CNTs-CNFs film. The electrosorption in salt solutions by CNTs-CNFs film electrodes was studied. It is found that electrosorption of CNTs-CNFs film electrodes is mainly due to Coulombic interaction on the electrical double-layer. Several experiments were conducted to study the ion removal capacity and selectivity of CNTs-CNFs film electrodes, showing that multivalent cations were preferentially adsorbed from the aqueous solution. For cations with same charge, the one with smaller hydrated radius would be more effectively removed.

Original language	English
Pages (from-to)	1616-1619
Number of pages	4
Journal	Thin Solid Films
Volume	517
Issue number	5
DOIs	https://doi.org/10.1016/j.tsf.2008.09.065
State	Published - 1 Jan 2009
Externally published	Yes

Keywords

Carbon nanotubes and carbon nanofibres
Electrical double-layer
Electrosorption
Hydrated radius
Ion charge

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10.1016/j.tsf.2008.09.065

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title = "Electrosorption behavior of cations with carbon nanotubes and carbon nanofibres composite film electrodes",

abstract = "The cost-effective, large area carbon nanotubes and carbon nanofibres (CNTs-CNFs) composite film was synthesized on graphite substrate by low pressure and low temperature thermal chemical vapor deposition. Cyclic voltammetry and ac impedance spectroscopy were employed to systematically study the electrochemical properties of CNTs-CNFs film. The electrosorption in salt solutions by CNTs-CNFs film electrodes was studied. It is found that electrosorption of CNTs-CNFs film electrodes is mainly due to Coulombic interaction on the electrical double-layer. Several experiments were conducted to study the ion removal capacity and selectivity of CNTs-CNFs film electrodes, showing that multivalent cations were preferentially adsorbed from the aqueous solution. For cations with same charge, the one with smaller hydrated radius would be more effectively removed.",

keywords = "Carbon nanotubes and carbon nanofibres, Electrical double-layer, Electrosorption, Hydrated radius, Ion charge",

author = "Yang Gao and Likun Pan and Li, \{Hai Bo\} and Yanping Zhang and Zhejuan Zhang and Yiwei Chen and Zhuo Sun",

year = "2009",

month = jan,

day = "1",

doi = "10.1016/j.tsf.2008.09.065",

language = "英语",

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}

TY - JOUR

T1 - Electrosorption behavior of cations with carbon nanotubes and carbon nanofibres composite film electrodes

AU - Gao, Yang

AU - Pan, Likun

AU - Li, Hai Bo

AU - Zhang, Yanping

AU - Zhang, Zhejuan

AU - Chen, Yiwei

AU - Sun, Zhuo

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The cost-effective, large area carbon nanotubes and carbon nanofibres (CNTs-CNFs) composite film was synthesized on graphite substrate by low pressure and low temperature thermal chemical vapor deposition. Cyclic voltammetry and ac impedance spectroscopy were employed to systematically study the electrochemical properties of CNTs-CNFs film. The electrosorption in salt solutions by CNTs-CNFs film electrodes was studied. It is found that electrosorption of CNTs-CNFs film electrodes is mainly due to Coulombic interaction on the electrical double-layer. Several experiments were conducted to study the ion removal capacity and selectivity of CNTs-CNFs film electrodes, showing that multivalent cations were preferentially adsorbed from the aqueous solution. For cations with same charge, the one with smaller hydrated radius would be more effectively removed.

AB - The cost-effective, large area carbon nanotubes and carbon nanofibres (CNTs-CNFs) composite film was synthesized on graphite substrate by low pressure and low temperature thermal chemical vapor deposition. Cyclic voltammetry and ac impedance spectroscopy were employed to systematically study the electrochemical properties of CNTs-CNFs film. The electrosorption in salt solutions by CNTs-CNFs film electrodes was studied. It is found that electrosorption of CNTs-CNFs film electrodes is mainly due to Coulombic interaction on the electrical double-layer. Several experiments were conducted to study the ion removal capacity and selectivity of CNTs-CNFs film electrodes, showing that multivalent cations were preferentially adsorbed from the aqueous solution. For cations with same charge, the one with smaller hydrated radius would be more effectively removed.

KW - Carbon nanotubes and carbon nanofibres

KW - Electrical double-layer

KW - Electrosorption

KW - Hydrated radius

KW - Ion charge

UR - https://www.scopus.com/pages/publications/56949084168

U2 - 10.1016/j.tsf.2008.09.065

DO - 10.1016/j.tsf.2008.09.065

M3 - 文章

AN - SCOPUS:56949084168

SN - 0040-6090

VL - 517

SP - 1616

EP - 1619

JO - Thin Solid Films

JF - Thin Solid Films

IS - 5

ER -

Electrosorption behavior of cations with carbon nanotubes and carbon nanofibres composite film electrodes

Abstract

Keywords

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