Journal
NEW JOURNAL OF CHEMISTRY
Volume 41, Issue 14, Pages 6187-6194Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj00540g
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Funding
- National Natural Science Foundation of China [21201049]
- China Postdoctoral Science Foundation [2016M591519]
- Heilongjiang Province Postdoctoral Science Foundation [LBH-Z16069]
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Two isomorphous 2D coordination polymers (CPs), [Co(L)(2)](n) (1) and [Ni(L)(2)](n) (2) (HL = 4-benzimidazole-1-yl-benzoic acid), have been synthesized under solvothermal conditions as precursors for metal oxides and characterized by single-crystal X-ray diffraction, revealing that both compounds 1 and 2 present porous 44 topology. The CP-derived metal oxides Co3O4 and NiO were prepared and examined as anodes for lithium-ion batteries in the potential range of 0.01-3.0 V. Both exhibit excellent cycle stability and high Coulombic efficiency at high current density, and the Co3O4 electrode presents superior electro-chemical performance. Co3O4 can achieve a specific capacity of 569.8 mA h g(-1) with 98% Coulombic efficiency after 50 cycles at a high current density of 2000 mA g(-1).
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