Creating 3D Hierarchical Carbon Architectures with Micro-, Meso-, and Macropores via a Simple Self-Blowing Strategy for a Flow-through Deionization Capacitor

Shanshan Zhao; Tingting Yan; Hui Wang; Jianping Zhang; Liyi Shi; Dengsong Zhang

doi:10.1021/acsami.6b03704

Creating 3D Hierarchical Carbon Architectures with Micro-, Meso-, and Macropores via a Simple Self-Blowing Strategy for a Flow-through Deionization Capacitor

ACS Appl Mater Interfaces. 2016 Jul 20;8(28):18027-35. doi: 10.1021/acsami.6b03704. Epub 2016 Jul 7.

Authors

Shanshan Zhao¹, Tingting Yan¹, Hui Wang¹, Jianping Zhang¹, Liyi Shi¹, Dengsong Zhang¹

Affiliation

¹ Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, China.

PMID: 27352100
DOI: 10.1021/acsami.6b03704

Abstract

In this work, 3D hierarchical carbon architectures (3DHCAs) with micro-, meso-, and macropores were prepared via a simple self-blowing strategy as highly efficient electrodes for a flow-through deionization capacitor (FTDC). The obtained 3DHCAs have a hierarchically porous structure, large accessible specific surface area (2061 m(2) g(-1)), and good wettability. The electrochemical tests show that the 3DHCA electrode has a high specific capacitance and good electric conductivity. The deionization experiments demonstrate that the 3DHCA electrodes possess a high deionization capacity of 17.83 mg g(-1) in a 500 mg L(-1) NaCl solution at 1.2 V. Moreover, the 3DHCA electrodes present a fast deionization rate in 100-500 mg L(-1) NaCl solutions at 0.8-1.4 V. The 3DHCA electrodes also present a good regeneration behavior in the reiterative regeneration test. These above factors render the 3DHCAs a promising FTDC electrode material.

Keywords: 3D hierarchical carbon architectures; capacitor; carbon; electrodes; resin.