Rhodium Nanoparticle-mesoporous Silicon Nanowire Nanohybrids for Hydrogen Peroxide Detection with High Selectivity

被引：0
作者：
Zhiqian Song
Hucheng Chang
Weiqin Zhu
Chenlong Xu
Xinjian Feng
机构：
[1] Suzhou Institute of Nano-Tech and Nano-Bionics,Nanobionics Division & Key Laboratory of Nano
[2] Chinese Academy of Sciences,Bio Interface
来源：
Scientific Reports | / 5卷
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摘要：
Developing nanostructured electrocatalysts, with low overpotential, high selectivity and activity has fundamental and technical importance in many fields. We report here rhodium nanoparticle and mesoporous silicon nanowire (RhNP@mSiNW) hybrids for hydrogen peroxide (H2O2) detection with high electrocatalytic activity and selectivity. By employing electrodes that loaded with RhNP@mSiNW nanohybrids, interference caused from both many electroactive substances and dissolved oxygen were eliminated by electrochemical assaying at an optimal potential of +75 mV. Furthermore, the electrodes exhibited a high detection sensitivity of 0.53 μA/mM and fast response (< 5 s). This high-performance nanohybrid electrocatalyst has great potential for future practical application in various oxidase-base biosensors.
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