Janus building block-enabled fabrication of dual metal equipped coordination polymers: an ideal precursor for noble metal/metal oxide nanocomposites with excellent catalytic performance

Abstract

Coordination polymer nanoribbons equipped with dual metal ions are fabricated by using a Janus building block, which combines two parts with distinct characters, a chemically hard group to assemble the host network with Co²⁺ ions, and a chemically soft unit to subsequently anchor noble ions. By judiciously adjusting the desolvation process, the 1D assembly of the Janus building blocks with Co²⁺ ions can be readily achieved. The structure analysis and formation mechanism study of the nanoribbons provide important guidance on the design and assembly manipulation of other bifunctional molecules. Furthermore, the dual metal ion equipped nanoribbons can act as ideal precursors for 1D Pd/Co₃O₄ nanocomposites with excellent catalytic activity, improved durability and magnetic separation ability.