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Nano Research 2023, 16(1): 318-324 https://doi.org/10.1007/s12274-022-4801-9
Research Article | Issue | Published: 26 August 2022

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

Show Author's Information Baojun Long1,  Peiyu Cao1,  Yuanmeng Zhao1( ),  Qianqian Fu1,  Yan Mo1,  Yueming Zhai3,  Juejing Liu4,5,  Xingyi Lyu6,7,  Tao Li6,7,  Xiaofeng Guo4,5,  Changsheng Shan1( ),  Minghua Zeng1,2( )
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
Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, China
Material Science and Engineering Program, Washington State University, Pullman, WA 99164, USA
Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA 99164, USA
X-ray Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
Keywords:
layered double hydroxides, nitrogen-doped graphene, electrochemical sensor, synergistic effect, single-atom catalysts
Topics:
ElectrocatalystsGlucose sensors
Cite this article:
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 Research, 2023, 16(1): 318-324. https://doi.org/10.1007/s12274-022-4801-9
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Abstract Full text Electronic supplementary material About this article

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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Electronic supplementary material
About this article

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

Show Author's information Baojun Long1, Peiyu Cao1, Yuanmeng Zhao1( ), Qianqian Fu1, Yan Mo1, Yueming Zhai3, Juejing Liu4,5, Xingyi Lyu6,7, Tao Li6,7, Xiaofeng Guo4,5, Changsheng Shan1( ), Minghua Zeng1,2( )
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
Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, China
Material Science and Engineering Program, Washington State University, Pullman, WA 99164, USA
Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA 99164, USA
X-ray Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA

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.

Keywords: layered double hydroxides, nitrogen-doped graphene, electrochemical sensor, synergistic effect, single-atom catalysts

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Publication history
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Acknowledgements

Publication history

Received: 11 May 2022
Revised: 17 July 2022
Accepted: 23 July 2022
Published: 26 August 2022
Issue date: January 2023

Copyright

© Tsinghua University Press 2022

Acknowledgements

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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