Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 8, Pages 7160-7168Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b15757
Keywords
metal-organic frameworks (MOFs); anode; sodium ion batteries; lithium-ion batteries; stable
Funding
- National Science Foundation of China
- Academy of Sciences large apparatus United Fund [21471091]
- Fundamental Research Funds of Shandong University [2015JC007]
- Taishan Scholar Project of Shandong Province [ts201511004]
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Two multifunctional metal-organic frame works (MOFs) with the same coordination mode, [Co(L)-(H2O)](n)center dot 2nH(2)O [defined as Co(L) MOF] and [Cd(L)-G.) ((H2O)](n)center dot 2nH(2)O [defined as Cd(L) MOF] (L = 5-aminoisophthalic acid) have been fabricated via a simple and versatile scalable solvothermal approach at 85 degrees C for 24 h. The relationship between the structure of the electrode materials (especially the coordination water and different metal ions) and the electrochemical properties of MOFs have been investigated for the first time. And then the possible electrochemical mechanisms of the electrodes have been studied and proposed. In addition, MOFs/RGO hybrid materials were prepared via ball milling, which demonstrated better electrochemical performances than those of individual Co(L) MOF and Cd(L) MOF. For example, when Co(L) MOF/RGO was applied as anode for sodium ion batteries (SIBs), it retained 206 mA h g(-1) after 330 cycles at 500 mA g(-1) and 1185 mA h g(-1) could be obtained after 50 cycles at 100 mA g(-1) for lithium-ion batteries (LIBs). The high-discharge capacity, excellent cyclic stability combined with the facile synthesis procedure enable Co(L) MOF-and Cd(L) MOF-based materials to be prospective anode materials for SIBs and LIBs.
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