Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, PR China.
Nanoscale. 2011 Mar;3(3):999-1003. doi: 10.1039/c0nr00657b. Epub 2010 Dec 6.
Hierarchical Cu4V2.15O9.38 micro-/nanostructures have been prepared by a facile "forced hydrolysis" method, from an aqueous peroxovanadate and cupric nitrate solution in the presence of urea. The hierarchical architectures with diameters of 10-20 µm are assembled from flexible nanosheets and rigid nanoplates with widths of 2-4 µm and lengths of 5-10 µm in a radiative way. The preliminary electrochemical properties of Cu4V2.15O9.38 have been investigated for the first time and correlated with its structure. This material delivers a large discharge capacity of 471 mA h g(-1) above 1.5 V, thus making it an interesting electrode material for primary lithium ion batteries used in implantable cardioverter defibrillators.
通过在含有尿素的水溶液中用过氧化钒和硝酸铜的方法，制备出了分级的 Cu4V2.15O9.38 微/纳米结构。这种分级结构的直径为 10-20μm，由柔性纳米片和刚性纳米板组装而成，纳米板的宽度为 2-4μm，长度为 5-10μm，呈辐射状排列。首次对 Cu4V2.15O9.38 的初步电化学性能进行了研究，并将其与结构相关联。该材料在 1.5V 以上提供了 471 mA h g(-1)的大放电容量，因此使其成为可植入式心律转复除颤器中使用的锂离子电池的一种有前途的电极材料。
