Cu NWs@Pd with controllable diameter: synthesis and their enhanced sensor performances in the detection of glucose and H2O2
Source abstract
Abstract
In this work, we synthesized bimetallic Cu nanowires@Pd (Cu NWs@Pd) by a facile replacement reaction. Benefiting from the structure anisotropy, the sensor constructed by Cu NWs@Pd with diameter of 40 nm exhibited a superior sensitivity (1363.7 ± 23.5 µA·mM−1·cm−2), which is ca. 11.06-folds higher than that for analogous Cu nanoparticles@Pd. Moreover, the synergistic effect of bimetallic metal enables the Cu NWs@Pd an enhanced sensor performance. At applied potential of 0.8 V vs Ag/AgCl, the sensitivity of Cu NWs@Pd is much higher than that of analogous Cu NWs. And the enhanced factor could reach 2.41. As 0.2 V vs Ag/AgCl was applied, detection range for the Cu NWs@Pd could up to 26.0 mM, which is ca. 1.37-folds for the pure Pd NPs. The preferable performance can be extended to the detection of H2O2. This work showed the non-enzymatic sensor with wide detection range and preferable sensitivity by Cu NWs@Pd, which would provide an efficient strategy to cope with the challenges for the commercialization of non-enzymatic sensor. Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrochemical sensors and biosensors · Advanced biosensing and bioanalysis techniques · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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