Journal
SCIENTIFIC REPORTS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep28847
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Funding
- Ministry of Science and Technology (MOST) of Taiwan [104-2628-E-002 -008-MY3, 104-2628-E-002-004-MY3]
- National Taiwan University [104R7740, 105R7706]
- Center of Strategic Materials Alliance for Research and Technology (SMART Center), National Taiwan University [102R104100]
- Deanship of Scientific Research at King Saud University [IRG-14-40]
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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).
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