Abstract
Poly(3,4-ethylenedioxythiophene) (PEDOT) doped with bovine serum albumin-stabilized Au nanoclusters (AuNCs) was successfully synthesized through electrochemical polymerization in a solution containing EDOT monomer and AuNCs. The obtained PEDOT/AuNCs composite possessed a microstructure with AuNCs evenly distributed within the PEDOT film as dopants. The PEDOT/AuNCs modified electrode exhibited high electrocatalytic activity toward nitrite oxidation, and it was further developed into an amperometric sensor for nitrite. If operated at 0.80 V (vs. SCE), the linear range of the sensor was from 0.05 to 2600 μM, with a very low limit of detection of 17 nM (S/N = 3).
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Acknowledgments
This research was supported by the Qingdao People’s Livelihood Science and Technology Project (14-2-3-30-nsh), the National Natural Science Foundation of China (21475118), and the Open Research Fund of Top Key Discipline of Chemistry in Zhejiang Provincial Colleges and Key Laboratory of the Ministry of Education for Advanced Catalysis Materials (Zhejiang Normal University, ZJHX201511).
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Fan, X., Lin, P., Liang, S. et al. Gold nanoclusters doped poly(3,4-ethylenedioxythiophene) for highly sensitive electrochemical sensing of nitrite. Ionics 23, 997–1003 (2017). https://doi.org/10.1007/s11581-016-1865-0
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DOI: https://doi.org/10.1007/s11581-016-1865-0