A novel and simple route to prepare a Pt nanoparticle-loaded carbon nanofiber electrode for hydrogen peroxide sensing

Liu, Yang, Wang, Dawei, Huang, Jianshe, Hou, Haoqing, and You, Tianyan (2011) A novel and simple route to prepare a Pt nanoparticle-loaded carbon nanofiber electrode for hydrogen peroxide sensing. Biosensors and Bioelectronics, 26 (11). pp. 4585-4590.

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A facile wet-chemical method was developed to prepare a novel Pt nanoparticle-loaded carbon nanofiber (Pt/CNF) electrode. Without using any stabilizer or pretreatment procedure, large amounts of Pt nanoparticles could be well deposited on the surface of the electrospun CNF electrode at room temperature, as revealed by scanning electron microscopy (SEM). The effect of the precursor concentration on the formation of Pt catalysts was investigated to optimize the performance of the proposed hybrid electrode. When applied to the electrochemical detection of hydrogen peroxide (H2O2), the Pt/CNF electrode exhibited low overpotential, fast response and high sensitivity. A low detection limit of 0.6 μM with wide linear range of 1–800 μM (R = 0.9991) was achieved at the Pt/CNF electrode, which was superior to that obtained with other H2O2 electrochemical sensors reported previously. In addition, the Pt/CNF electrode showed good selectivity for H2O2 detection in the presence of ascorbic acid (AA), acetaminophenol (AP) and uric acid (UA) under physiological pH condition. The attractive analytical performances and facile preparation method made this novel hybrid electrode promising for the development of effective H2O2 sensors.

Item ID: 54403
Item Type: Article (Research - C1)
ISSN: 0956-5663
Keywords: Pt nanaparticle-loaded carbon nanofiber; electrode; electrochemical sensor; H2O2
Funders: National Natural Science Foundation of China (NNSFC), Chinese Academy of Sciences (CAS)
Projects and Grants: NNSFC 20875085, CAS KJCX2-YW-H11
Date Deposited: 03 Jul 2018 04:55
FoR Codes: 03 CHEMICAL SCIENCES > 0301 Analytical Chemistry > 030102 Electroanalytical Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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