科研之友
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摘要
Herein, a novel POMOF based on Wells-Dawson arsenomolybdate (AM), with the formula [{Cu(btp)(2)}(3){As2Mo18O62}] (btp = 1,3-bis.1,2,4-triazol-1-yl)propane) (1), was synthesized under hydrothermal conditions and structurally characterized by single crystal X-ray diffraction, elemental analysis, IR spectroscopy, XPS, PXRD, TG analysis, UV-vis-NIR spectroscopy, and BET analysis. It is interesting that the [As2Mo18O62](6-) polyoxoanion as a hexa-connector is encapsulated with {Cu-btp} complexes to form a 3D POMOF. The 3D topological network has the Schlafli symbol of {4(6).5(5).6(2).7(2)}(3){4(6).5(6).7(3)}. Compound 1 shows excellent stability in air, different pH aqueous solutions and common organic solvents. Compound 1 also exhibits fluorescence properties and efficient and stable photocatalytic activity for the degradation of MB and RhB under UV irradiation. In addition, the electrochemical performance of the designed Wells-Dawson AM as the anode material for lithium-ion batteries (LIBs) has also been evaluated. For the 1st cycle, the reversible capacity of compound 1 is about 1050 mA h g(-1) at a current density of 100 mA g(-1) and is maintained at around 870 mA h g(-1) after 240 cycles.
