Boosting Electrochemical Catalysis and Nonenzymatic Sensing Toward Glucose by Single‐Atom Pt Supported on Cu@CuO Core–Shell Nanowires

Author:

Zhao Yuanmeng1,Jiang Yunhao1,Mo Yan1,Zhai Yueming2,Liu Juejing3,Strzelecki Andrew C.3,Guo Xiaofeng3,Shan Changsheng1ORCID

Affiliation:

1. Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry and Chemical Engineering Hubei University Wuhan 430062 P. R. China

2. The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China

3. Department of Chemistry and Material Science and Engineering Program Washington State University Pullman WA 99164 USA

Abstract

AbstractIt is critical to develop high‐performance electrocatalyst for electrochemical nonenzymatic glucose sensing. In this work, a single‐atom Pt supported on Cu@CuO core–shell nanowires (Pt1/Cu@CuO NWs) for electrochemical nonenzymatic glucose sensor is designed. Pt1/Cu@CuO NWs exhibit excellent electrocatalytic oxidation toward glucose with 70 mV lower onset potential (0.131 V) and 2.4 times higher response current than Cu NWs. Sensors fabricated using Pt1/Cu@CuO NWs also show high sensitivity (852.163 µA mM−1 cm−2), low detection limit (3.6 µM), wide linear range (0.01–5.18 µM), excellent selectivity, and great long‐term stability. The outstanding sensing performance of Pt1/Cu@CuO NWs, investigated by experiments and density functional theory (DFT) calculations, is attributed to the synergistic effect between Pt single atoms and Cu@CuO core–shell nanowires that generates strong binding energy of glucose on the nanowires. The work provides a new pathway for exploring highly active SACs for electrochemical nonenzymatic glucose sensor.

Funder

National Natural Science Foundation of China

China Postdoctoral Science Foundation

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

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