Carbon spheres with hierarchical micro/mesopores for water desalination by capacitive deionization

Xingtao Xu; Hongmei Tang; Miao Wang; Yong Liu; Yanjiang Li; Ting Lu; Likun Pan

doi:10.1039/c6ta07616e

Carbon spheres with hierarchical micro/mesopores for water desalination by capacitive deionization

Xingtao Xu
, Hongmei Tang
, Miao Wang
, Yong Liu
, Yanjiang Li
, Ting Lu
, Likun Pan^*

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University

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

63 Scopus citations

Abstract

In this work, porous carbon spheres with hierarchical pores (denoted as hCSs) were fabricated via a sol-gel process using a surfactant-directing assembly strategy and investigated as capacitive deionization (CDI) electrode materials for the first time. By using transmission electron microscopy and N₂ adsorption/desorption analyses, a hierarchy of micropores and mesopores was demonstrated to be present in the hCSs. Based on the results of CDI measurements, the hCSs obtained at 800 °C (hCSs-800) displayed the best electrosorption performance of all the hCS samples tested: hCSs-800 exhibited a high electrosorption capacity of 15.8 mg g^-1 when the initial NaCl concentration was 500 mg L^-1. Furthermore, according to a Kim-Yoon plot analysis, hCSs-800 integrated the merits of both a high electrosorption capacity and fast electrosorption rate, indicating the superiority of these hCSs for CDI applications.

Original language	English
Pages (from-to)	16094-16100
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	4
Issue number	41
DOIs	https://doi.org/10.1039/c6ta07616e
State	Published - 2016

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title = "Carbon spheres with hierarchical micro/mesopores for water desalination by capacitive deionization",

abstract = "In this work, porous carbon spheres with hierarchical pores (denoted as hCSs) were fabricated via a sol-gel process using a surfactant-directing assembly strategy and investigated as capacitive deionization (CDI) electrode materials for the first time. By using transmission electron microscopy and N2 adsorption/desorption analyses, a hierarchy of micropores and mesopores was demonstrated to be present in the hCSs. Based on the results of CDI measurements, the hCSs obtained at 800 °C (hCSs-800) displayed the best electrosorption performance of all the hCS samples tested: hCSs-800 exhibited a high electrosorption capacity of 15.8 mg g-1 when the initial NaCl concentration was 500 mg L-1. Furthermore, according to a Kim-Yoon plot analysis, hCSs-800 integrated the merits of both a high electrosorption capacity and fast electrosorption rate, indicating the superiority of these hCSs for CDI applications.",

author = "Xingtao Xu and Hongmei Tang and Miao Wang and Yong Liu and Yanjiang Li and Ting Lu and Likun Pan",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

doi = "10.1039/c6ta07616e",

language = "英语",

volume = "4",

pages = "16094--16100",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

number = "41",

}

TY - JOUR

T1 - Carbon spheres with hierarchical micro/mesopores for water desalination by capacitive deionization

AU - Xu, Xingtao

AU - Tang, Hongmei

AU - Wang, Miao

AU - Liu, Yong

AU - Li, Yanjiang

AU - Lu, Ting

AU - Pan, Likun

PY - 2016

Y1 - 2016

N2 - In this work, porous carbon spheres with hierarchical pores (denoted as hCSs) were fabricated via a sol-gel process using a surfactant-directing assembly strategy and investigated as capacitive deionization (CDI) electrode materials for the first time. By using transmission electron microscopy and N2 adsorption/desorption analyses, a hierarchy of micropores and mesopores was demonstrated to be present in the hCSs. Based on the results of CDI measurements, the hCSs obtained at 800 °C (hCSs-800) displayed the best electrosorption performance of all the hCS samples tested: hCSs-800 exhibited a high electrosorption capacity of 15.8 mg g-1 when the initial NaCl concentration was 500 mg L-1. Furthermore, according to a Kim-Yoon plot analysis, hCSs-800 integrated the merits of both a high electrosorption capacity and fast electrosorption rate, indicating the superiority of these hCSs for CDI applications.

AB - In this work, porous carbon spheres with hierarchical pores (denoted as hCSs) were fabricated via a sol-gel process using a surfactant-directing assembly strategy and investigated as capacitive deionization (CDI) electrode materials for the first time. By using transmission electron microscopy and N2 adsorption/desorption analyses, a hierarchy of micropores and mesopores was demonstrated to be present in the hCSs. Based on the results of CDI measurements, the hCSs obtained at 800 °C (hCSs-800) displayed the best electrosorption performance of all the hCS samples tested: hCSs-800 exhibited a high electrosorption capacity of 15.8 mg g-1 when the initial NaCl concentration was 500 mg L-1. Furthermore, according to a Kim-Yoon plot analysis, hCSs-800 integrated the merits of both a high electrosorption capacity and fast electrosorption rate, indicating the superiority of these hCSs for CDI applications.

UR - https://www.scopus.com/pages/publications/84992343685

U2 - 10.1039/c6ta07616e

DO - 10.1039/c6ta07616e

M3 - 文章

AN - SCOPUS:84992343685

SN - 2050-7488

VL - 4

SP - 16094

EP - 16100

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 41

ER -

Carbon spheres with hierarchical micro/mesopores for water desalination by capacitive deionization

Abstract

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