Pore Size-Controllable Synthesis of Bimetallic or Multiple Metallic Nanostructures

Nanoporous materials have generated a great deal of interest in catalysis, sensor, electronics, phase separation, and environmental remediation. However, it is still a big challenge to control pore size and reduce the pore to the nanoscale level. Here, we report a one-step general synthesis method based on galvanic replacement for the fabrication of Cu-based bimetallic or multiple metallic porous nanostructures. The pore size-control can be realized through adjusting reaction parameters such as temperature, precursor concentration, and reaction intervals. Furthermore, these porous nanostructures demonstrate excellent catalytic and conductive performance. We envision that such simple synthesis strategy could be extended to the design of other inorganic nanoparticles for various applications.