A Flexible Enzymeless Glucose Sensor via Electrodepositing 3D Flower-like CoS onto Self-Supporting Graphene Tape Electrode

Authors

Jiang Li, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Zuo-Peng Li, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Yun-Feng Bai, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Su-Xing Luo, 2. Department of Chemistry and Chemical Engineering, Zunyi Normal College, Zunyi 563006, Guizhou, P.R. China;
Yong Guo, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Ya-Yan Bao, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Rong Li, 3. College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, Sichuan, P.R. China;
Hai-Yan Liu, 4. School of Life and Science, Shanxi Datong University, Datong 037009, Shanxi, P.R. China;
Feng Feng, 1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, Shanxi, P.R. ChinaFollow

Corresponding Author

Feng Feng(feng-feng64@263.net)

Abstract

Three-dimensional (3D) nanostructural Flower-like cobalt sulfide (CoS) on flexible self-supporting graphene tape electrode (GTE) with remarkably electrocatalytic activity toward glucose was successfully prepared by electrodeposition. Structural characterizations revealed that the electrodeposited CoS was highly dispersed on GTE as an active material. The fabricated binder-free and self-standing CoS/GTE shows a good linear response in the range of 0.025 ~ 1.0 mmol·L^-1, reaching a high glucose sensitivity value of 323.3 μA·(mmol·L ^-1)^-1·cm^-2 and a low detection limit of 8.5 μmol·L ^-1 (S/N = 3). Moreover, the as-prepared sensor was well applied for glucose determination in human serum. Thus, the self-supporting, binder-free, low-cost sensor has good potential as a promising device for practical quantitative analysis of glucose in human serum.

Graphical Abstract

Keywords

flexible electrode, flower-like CoS, electrodeposition, glucose sensor

DOI Link

https://doi.org/10.13208/j.electrochem.210421

Publication Date

2022-01-28

Online Available Date

2021-08-03

Revised Date

2021-06-30

Received Date

2021-04-21

Recommended Citation

Jiang Li, Zuo-Peng Li, Yun-Feng Bai, Su-Xing Luo, Yong Guo, Ya-Yan Bao, Rong Li, Hai-Yan Liu, Feng Feng. A Flexible Enzymeless Glucose Sensor via Electrodepositing 3D Flower-like CoS onto Self-Supporting Graphene Tape Electrode[J]. Journal of Electrochemistry, 2022 , 28(1): 2104211.
DOI: 10.13208/j.electrochem.210421
Available at: https://jelectrochem.xmu.edu.cn/journal/vol28/iss1/4