Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 22, Issue 12, Pages 3873-3881Publisher
SPRINGER
DOI: 10.1007/s10008-018-4096-7
Keywords
Metal-organic framework; Specific capacitance; Temperature; Specific surface area
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Funding
- National Natural Science Foundation of China [51505209]
- Shenzhen Science and Technology Innovation Committee [JCYJ20170412154426330, KQTD2015071710313656]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2016A030306042]
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We have synthesized cobalt metal-organic framework (Co-MOF) at different temperatures through solvothermal route as metal-organic frameworks which can be used for supercapacitors. The effect of synthesizing temperature on Co-MOF's structure and porous behavior were analyzed with various characterization techniques like X-ray diffraction, Brunauer-Emmett-Teller surface analyzer, scanning electron microscope, and transmission electron microscope. The charge storage performance of the as-prepared Co-MOF's was carried out in 3M KOH. The results proved the excellent redox behavior of Co-MOFs, and a maximum specific capacitance of 952.5Fg(-1) was obtained for Co-MOF/150 (synthesized at 150 degrees C) at a current density of 0.25Ag(-1). The higher specific surface area and micropore of Co-MOF/150 significantly heightened the electrolyte ion transport during the electrochemical performance.
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