Ni(OH)₂‑Polyoxometalate Cluster Hybrid Superstructures

It remains a great challenge to develop a general and facile strategy to rationally design and control the structure and morphology of materials at the sub-1 nm scale. Herein, various dimensional sub-1 nm hybrid nanomaterials (including nanowires, nanobelts, and fiber structures) were synthesized by incorporating three types of molybdenum-based polyoxometalate (POM) clusters within the Ni­(OH)2 reaction system at the nucleation stage, where the inorganic nuclei were successfully limited to the sub-1 nm scale and co-assembled with POM to form the co-assembly of POM and Ni­(OH)2, which continued to grow as building blocks into different dimensional hybrid nanomaterials with sub-1 nm architectures. It was also demonstrated by molecular dynamics (MD) simulations. Furthermore, because of the synergetic effect of POM clusters and Ni­(OH)2, these obtained materials not only exhibited high catalytic activity in gasoline desulfurization at room temperature (RT) but also displayed excellent electrocatalytic activity in the reduction of hydrogen peroxide; thus, these materials could be promising hydrogen peroxide amperometric sensors