Hydrothermal and plasma nitrided electrospun carbon nanofibers for amperometric sensing of hydrogen peroxide
- 186 Downloads
Nitrogen-doped carbon nanofibers (CNFs) were prepared by an electrospinning method, this followed by a hydrothermal reaction or nitrogen plasma treatment to obtain electrode for non-enzymatic amperometric sensing of H2O2. The hydrothermally treated electrode performs better. Its electrochemical surface is 3.7 × 10−3 mA cm−2, which is larger than that of a nitrogen plasma treated electrode (8.9 × 10−4) or a non-doped CNF (2.45 × 10−4 mA cm−2). The hydrothermally treated CNF with rough surface and a complex profile with doped N has a higher sensitivity (357 μA∙mM−1∙cm−2), a lower detection limit (0.62 μM), and a wider linear range (0.01–0.71 mM) than N-CNFP at a working potential of −0.4 V (vs. Ag/AgCl). The electrode gave high recoveries when applied to the analysis of milk samples spiked with H2O2.
KeywordsSpecific activity Cyclic voltammetry Hydrogen peroxide reduction reaction Electrochemical surface area X-ray photoelectron spectrum
The authors thank the Ministry of Science and Technology, Taiwan, for financially supporting this research under Contract Nos. MOST 106-2221-E-151-039-MY3 and MOST 105-2628-E-006-009-MY3 as well as Mr. Shyne-Yen Yao at National Cheng Kung University and Mr. Hsien-Tsan Lin of Regional Instruments Center at National Sun Yat-Sen University for their assistance for TEM experiments.
Compliance with ethical standards
The author(s) declare that they have no competing interests.
- 5.Chen T-W, Palanisamy S, Chen S-M (2016) Non-enzymatic sensing of hydrogen peroxide using a glassy carbon electrode modified with a composite consisting of chitosan-encapsulated graphite and platinum nanoparticles. Microchim Acta 183(11):2861–2869. https://doi.org/10.1007/s00604-016-1925-1 CrossRefGoogle Scholar
- 6.Yang Y, Fu RZ, Yuan JJ, Wu SY, Zhang JL, Wang HY (2015) Highly sensitive hydrogen peroxide sensor based on a glassy carbon electrode modified with platinum nanoparticles on carbon nanofiber heterostructures. Microchim Acta 182(13–14):2241–2249. https://doi.org/10.1007/s00604-015-1558-9 CrossRefGoogle Scholar
- 9.Noor AM, Shahid MM, Rameshkumar P, Huang NM (2015) A glassy carbon electrode modified with graphene oxide and silver nanoparticles for amperometric determination of hydrogen peroxide. Microchim Acta 183(2):911–916. https://doi.org/10.1007/s00604-015-1679-1
- 21.Cullity BD, Stock SR (2001) Elements of X-ray diffraction, 3edn edn. Prentice Hall, New JerseyGoogle Scholar
- 26.Ohgiyal S, Hoshino T, Okuyama H, Tanakal S, Ishizakil K (1999) Biotechnology of enzymes from cold-adapted microorganisms. Biotechnological Applications of Cold-Adapted Organisms, 1 edn. Speringer Heidelberg, GermanGoogle Scholar
- 29.Wu Q, Sheng QL, Zheng JB (2016) Nonenzymatic amperometric sensing of hydrogen peroxide using a glassy carbon electrode modified with a sandwich-structured nanocomposite consisting of silver nanoparticles, Co3O4 and reduced graphene oxide. Microchim Acta 183(6):1943–1951. https://doi.org/10.1007/s00604-016-1829-0 CrossRefGoogle Scholar