用于盐离子高效电吸附的ZIF-8衍生的氮掺杂碳多面体颗粒多孔电极
ZIF-8 Derived, Nitrogen-Doped Porous Electrodes of Carbon Polyhedron Particles for High-Performance Electrosorption of Salt Ions.
作者信息
Liu Nei-Ling, Dutta Saikat, Salunkhe Rahul R, Ahamad Tansir, Alshehri Saad M, Yamauchi Yusuke, Hou Chia-Hung, Wu Kevin C-W
机构信息
Graduate School of Environmental Engineering, National Taiwan University, Taipei 10617, Taiwan.
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
出版信息
Sci Rep. 2016 Jul 12;6:28847. doi: 10.1038/srep28847.
Three-dimensional (3-D) ZIF-8 derived carbon polyhedrons with high nitrogen (N) content, (denoted as NC-800) are synthesized for their application as high-performance electrodes in electrosorption of salt ions. The results showed a high specific capacitance of 160.8 F·g(-1) in 1 M NaCl at a scan rate of 5 mV·s(-1). Notably, integration of 3-D mesopores and micropores in NC-800 achieves an excellent capacitive deionization (CDI) performance. The electrosorption of salt ions at the electrical double layer is enhanced by N-doping at the edges of a hexagonal lattice of NC-800. As evidenced, when the initial NaCl solution concentration is 1 mM, the resultant NC-800 exhibits a remarkable CDI potential with a promising salt electrosorption capacity of 8.52 mg·g(-1).
合成了具有高氮（N）含量的三维（3-D）ZIF-8衍生碳多面体（表示为NC-800），用于作为盐离子电吸附中的高性能电极。结果表明，在1 M NaCl中，扫描速率为5 mV·s(-1)时，比电容高达160.8 F·g(-1)。值得注意的是，NC-800中三维介孔和微孔的整合实现了优异的电容去离子化（CDI）性能。NC-800六方晶格边缘的氮掺杂增强了双电层处盐离子的电吸附。有证据表明，当初始NaCl溶液浓度为1 mM时，所得的NC-800表现出显著的CDI潜力，盐电吸附容量高达8.52 mg·g(-1)。
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