Construction of a Hierarchical Structure of Bimetallic Oxide Derived from Metal-Organic Frameworks

:bimetallic oxides are a class of promising advancedfunctional metal nanomaterials, especially in terms of the sophisticatedhierarchical structure of bimetallic oxide, which not only is in favor ofenhancing their intrinsic physiochemical properties because of moreaccessible actives sites but also is capable of integrating the synergisticeffect between two metals. Herein, we report a novel strategy tocontrollably construct bimetallic CuO/ZnO nanomaterials with sophisti-cated hierarchical structure through a pseudomorphic transformation andsubsequent calcination process. The resulting unique hierarchical structureof ZnO/CuO is primarily constituted of a nanosphere and a rod grafted ina microscale cube with multidimensional size, which thus results inexcellent dispersion, superior charge-transport capability, and abundantaccessible active sites. Impressively, the optimized hierarchical structure product of CuO/ZnO (4:1) demonstrates an excellentglucose detection performance with a rapid response time, a wide linear range, a low detection limit, and strong antiinterferenceability, realizing more advantages than commercial CuO or ZnO materials and shedding light on the positive correlation of thestructure and performance. This study provides a new strategy for the controllable fabrication of the sophisticated hierarchicalstructure of bimetallic oxide nanomaterials