Cu(OH)2 nanomaterials are widely investigated
for non-enzymatic
glucose sensors due to their low-cost and excellent performance. Cu(OH)2 nanomaterials usually grow on substrates to form sensor electrodes.
Reported works mainly focus on structure adjusting of the Cu(OH)2 nanostructures, while the optimization of substrates is still
lacking. In the present work, directional porous Cu (DPC) was applied
as the substrate for the growth of Cu(OH)2 nanograss (NG),
and hierarchical structures of Cu(OH)2@DPC were prepared
by alkaline oxidation. The morphology and microstructure evolution
of the prepared hierarchical structures was investigated, and the
non-enzymatic glucose sensing performance was evaluated. Cu(OH)2@DPC exhibits enhanced comprehensive non-enzymatic glucose
sensing performance compared to the reported ones, which may benefit
from both the effective adsorption of the Cu(OH)2 NG with
a relatively high surface area and the high solute exchange of the
DPC by a channel effect. This work provides new insights into the
further improvement of the non-enzymatic glucose sensing performance
of Cu(OH)2 nanostructures by optimizing the substrate structure.
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