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

详细信息    查看全文

• 作者：Shanshan Zhao ; Tingting Yan ; Hui Wang ; Jianping Zhang ; Liyi Shi ; Dengsong Zhang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：July 20, 2016
• 年：2016
• 卷：8
• 期：28
• 页码：18027-18035
• 全文大小：611K
• 年卷期：0
• ISSN：1944-8252

文摘

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 m² 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.