title: Rhodium nanoparticle-mesoporous silicon nanowire nanohybrids for hydrogen peroxide detection with high selectivity.
abstract: 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.
authors.affiliation: Nanobionics Division &Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123 China.
authors.forename: Zhiqian
authors.initials: Z
authors.lastname: Song
authors.affiliation: Nanobionics Division &Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123 China.
authors.forename: Hucheng
authors.initials: H
authors.lastname: Chang
authors.affiliation: Nanobionics Division &Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123 China.
authors.forename: Weiqin
authors.initials: W
authors.lastname: Zhu
authors.affiliation: Nanobionics Division &Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123 China.
authors.forename: Chenlong
authors.initials: C
authors.lastname: Xu
authors.affiliation: Nanobionics Division &Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123 China.
authors.forename: Xinjian
authors.initials: X
authors.lastname: Feng
mesh_terms: D002021:Buffers; D055664:Electrochemical Techniques; D006861:Hydrogen Peroxide / Q000032:analysis*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D016062:Porosity; D012238:Rhodium / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry*; D012996:Solutions
chemical_list: D002021:Buffers; D012996:Solutions; D006861:Hydrogen Peroxide; D012238:Rhodium; D012825:Silicon