the same time. CuNPs and H2 can play a role as double-template
for the deposition of PtNPs. The hydrogen bubbles functioned as the
dynamic template for the electrodeposition of PtNPs arising from
the electrochemical reduction of H+ at CuNPs surface more was
more easily than that of the bare glassy carbon electrode (GCE).
Furthermore, CuNPs played the role as nucleus for the electrodeposition
process. CuNPs can kill two birds with one stone. On the
one hand, CuNPs accelerated the formation of H2; on the other
hand, it can enhance the electrodeposition of PtNPs by a replacement
reaction with H2PtCl6. with CuNPs. The double-template
electrosynthesis we reported here, not only overcomes troublesome
procedures to remove the traditional template, but also it
is a simple, cost-effective, and potent method to prepare Pt nanomaterials
for applications.