In summary, the Cu NPs we prepared not only has unique
shape and structure, but also display an excellent catalytic
property for the reduction of aromatic nitro compounds.
Compared with the traditional methods of the nitro reduction, our procedure possesses lower cost, easier products
separation, and higher yields. More importantly, the Cu NPs
can be recycled and reused many times. On the basis of the
above findings, further mechanistic investigation is currently
in progress.