Hierarchical hole-enhanced 3D graphene assembly for highly efficient capacitive deionization

被引：116

作者：

Li, Jing ^{[1
]}

Ji, Bingxue ^{[1
]}

Jiang, Rui ^{[1
]}

Zhang, Panpan ^{[1
]}

Chen, Nan ^{[1
]}

Zhang, Guofeng ^{[1
]}

Qu, Liangti ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China

来源：

CARBON | 2018年 / 129卷

基金：

北京市自然科学基金; 国家重点研发计划;

关键词：

CARBON NANOFIBER WEBS; DESALINATION PERFORMANCE; COMPOSITE ELECTRODES; WATER-PURIFICATION; MESOPOROUS CARBON; ENERGY-STORAGE; BRACKISH-WATER; POROUS CARBON; NANOTUBES; SUPERCAPACITORS;

D O I：

10.1016/j.carbon.2017.11.095

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A hole-rich graphene framework (HGF) has been successfully prepared through lyophilization combined with thermal treatment at 200 degrees C. As the advanced three-dimensional (3D) graphene mesh assembly, the monolithic HGF was directly compacted to form capacitive deionization (CDI) electrode without grinding and binder so that the intact 3D structure can be reserved. The presence of original 3D structure combined with hierarchical hole structure in HGF plays important role in improving the CDI performance. The desalination capacities of HGF can reach up to 8.0 mg g(-1), 16.9 mg g(-1), and 29.6 mg g(-1) in NaCl aqueous of 80 mg L-1, 270 mg L-1, and 572 mg L-1 respectively, which significantly exceeds other carbonbased materials at 2.0 V. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：95 / 103

页数：9

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