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Pt1/Ni6Co1 layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping

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Abstract

The development of novel single-atom catalysts is important for highly efficient electrochemical catalysis and sensing. In this work, a novel Pt single atoms (SAs) supported on Ni6Co1 layered double hydroxides/nitrogen-doped graphene (Pt1/Ni6Co1LDHs/NG) was constructed for electrochemical enzyme-free catalysis and sensing towards glucose. The loading of Pt single atoms increases with doping of Co atoms that generate more anchoring sites for Pt SAs. The resulting Pt1/Ni6Co1LDHs/NG exhibits low oxidative potential of 0.440 V with high sensitivity of 273.78 µA·mM−1·cm−2 toward glucose, which are 85 mV lower and 15 times higher than those of Ni(OH)2, respectively. Pt1/Ni6Co1LDHs/NG also shows excellent selectivity and great stability during 5-week testing. Theoretical and experimental results show that the boosted performance of Pt1/Ni6Co1LDHs/NG originates from its stronger binding energy with glucose and the synergistic effect of Pt SAs, Co doping, and NG. This work provides a general strategy of designing highly active SACs for extending their application in electrochemical sensing.

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Acknowledgements

C. S. S. thanks the support from the National Natural Science Foundation of China (No. 21874031) and “Chu-Tian Scholar” Program of Hubei Province. M. H. Z. acknowledges the support from the NSFC of China (No. 22171075), Guangxi Province (No. 2017GXNSFDA198040), and the BAGUI talent program (no. 2019AC26001). J. J. L. and X. F. G. acknowledge the support by the institutional funds and New Faculty Seed Grant from ORAP at WSU. This research used resources of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory under Contract (No. DE-AC02-06CH11357). Y. M. Z. thanks the support from the China Postdoctoral Science Foundation (No. 2021M701133). The numerical calculations in this paper have been done on the supercomputing system in the Supercomputing Center of Wuhan University.

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Authors and Affiliations

  1. Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China

    Baojun Long, Peiyu Cao, Yuanmeng Zhao, Qianqian Fu, Yan Mo, Changsheng Shan & Minghua Zeng

  2. Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China

    Minghua Zeng

  3. The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China

    Yueming Zhai

  4. Material Science and Engineering Program, Washington State University, Pullman, WA, 99164, USA

    Juejing Liu & Xiaofeng Guo

  5. Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA, 99164, USA

    Juejing Liu & Xiaofeng Guo

  6. X-ray Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA

    Xingyi Lyu & Tao Li

  7. Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL, 60115, USA

    Xingyi Lyu & Tao Li

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  1. Baojun Long
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  2. Peiyu Cao
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  3. Yuanmeng Zhao
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  9. Tao Li
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Correspondence to Yuanmeng Zhao, Changsheng Shan or Minghua Zeng.

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Pt1/Ni6Co1 layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping

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Long, B., Cao, P., Zhao, Y. et al. Pt1/Ni6Co1 layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping. Nano Res. 16, 318–324 (2023). https://doi.org/10.1007/s12274-022-4801-9

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  • DOI: https://doi.org/10.1007/s12274-022-4801-9

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