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Microchimica Acta

, 186:631 | Cite as

Nanoporous platinum-copper flowers for non-enzymatic sensitive detection of hydrogen peroxide and glucose at near-neutral pH values

  • Hongxiao Yang
  • Zhaohui Wang
  • Qiuxia Zhou
  • Caixia XuEmail author
  • Jiagang HouEmail author
Original Paper
  • 133 Downloads

Abstract

Multimodal nanoporous PtCu flowers (np-PtCu) were prepared via a two-step dealloying strategy under mild conditions. The np-PtCu alloy possesses an interconnected flower-like network skeleton with multiscale pore distribution. This material was placed on a glassy carbon electrode where it shows outstanding detection performance towards hydrogen peroxide and glucose in near-neutral pH solutions. It can be attributed to the specific structure in terms of interconnected nanoscaled ligaments, rich pore openings and a synergistic alloying effect. Figures of merit for detection H2O2 assay include (a) a working voltage of 0.7 V (vs. the reversible hydrogen electrode); (b) a wide linear response range (from 0.01 to 1.7 mM), and (c) a low detection limit (0.1 μM). The respective data for the glucose assay are (a) 0.4 V, (b) 0.01–2.0 mM, and (c) 0.1 μM. The method is not interfered in the presence of common concentrations of dopamine, acetaminophen and ascorbic acid.

Graphical abstract

Multimodal nanoporous (np) PtCu alloy was prepared via a two-step dealloying strategy under mild conditions. Np-PtCu exhibits superior electrocatalytic activity. The assay is highly sensitive, selective, and it allows for a long-term detection of H2O2 and glucose.

Keywords

Nanocomposite Electrocatalyst Electrochemical detection Alloy Detection performance 

Notes

Acknowledgements

This work was supported by National Natural Science Foundation of China (51772133), Natural Science Foundation of Shandong Province (ZR2017JL022), and the program for Taishan Scholar of Shandong province (ts201712048).

Compliance with ethical standards

There are no potential conflicts of interest.

Supplementary material

604_2019_3728_MOESM1_ESM.docx (423 kb)
ESM 1 (DOCX 422 kb)

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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute for Advanced Interdisciplinary Research, School of Chemistry and Chemical EngineeringUniversity of JinanJinanChina
  2. 2.Qilu University of Technology (Shandong Academy of Sciences)JinanChina

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