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To improve glucose electrocatalytic performance, one efficient manner is to develop a novel Cu-Ag bimetallic composite with fertile porosity and unique architecture. Herein, the self-supported electrode with Cu  x  O/Ag 2 O ( x = 1, 2) nanowires grown in-situ on a nanoporous Cu-Ag network ( C u  x O /Ag 2 O@NP-CuAg) has been successfully designed by a facile two-step approach. The integrated hierarchical porous structure, the tip-converged Cu  x  O/Ag 2 O nanowires combined with the interconnected porous conductive substrate, are favorable to provide more reactive sites and improve ions or electrons transportation. Compared with monometallic Cu 2 O nanowires integrated with nanoporous Cu matrix (Cu 2 O@NP-Cu), the bimetallic Cu  x  O/Ag 2 O@NP-CuAg composites exhibit the enhanced electrocatalytic performance for glucose. Moreover, the higher sensitivity of ~1.49 mA mM -1 cm -2 in conjunction with a wider linear range of 17 mM for the Cu  x  O/Ag 2 O@NP-CuAg electrode anodized for 10 min are attributed to the synergistic effect of porous structure and bimetallic Cu  x  O/Ag 2 O nanowires. Particularly, the integrated Cu  x  O/Ag 2 O@NP-CuAg composites possess good flexibility, which has been reported for the first time. Accordingly, the Cu  x  O/Ag 2 O@NP-CuAg with excellent glucose electrocatalytic performance and good flexibility is promising to further develop as a candidate electrode material of glucose sensors.

Flexible Free-Standing CuxO/Ag2O (x = 1, 2) Nanowires Integrated with Nanoporous Cu-Ag Network Composite for Glucose Sensing