The nanostructure of metal-organic frameworks (MOFs) plays an important role in various applications since different nanostructures usually exhibit different properties and functions. In this work, the authors reported the preparation of ultrathin MOF nanoribbons by using metal hydroxide nanostructures as the precursors. Importantly, this general method can be used to synthesize various kinds of ultrathin MOF nanoribbons. The as-prepared ultrathin nanoribbons have been used for DNA detection, exhibiting excellent sensitivity and selectivity.
Metal-organic frameworks (MOFs) have attracted great attentions in the past decades due to their many noticeable features, such as large surface areas, highly ordered pores, tunable structures and unique functions, making them promising for many applications. The structure engineering of MOFs at the nanometer scale is essential to customize MOFs for specific applications.
Among various nanostructures, ultrathin nanoribbons (NRBs) show great potentials in both fundamental studies and technological applications. Their unique features like high surface-to-volume ratio, highly active surface, and high concentration of selectively exposed crystal facets enable them to exhibit unique electronic structures, mechanical properties, and excellent catalytic efficiency. However, so far, the preparation of ultrathin MOF NRBs still remains a great challenge due to the complicated nucleation and growth processes of MOFs.