Synergistic effect of a cobalt fluoroporphyrin and graphene oxide on the simultaneous voltammetric determination of catechol and hydroquinone
| Autor: | Hui-Shi Guo, Atif Mossad Ali, Hai-Yang Liu, Xiao Ying, Fan Cheng, Li-Ping Si, Jian Wang, Dong-Lan Huang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Hydroquinone Graphene Inorganic chemistry chemistry.chemical_element Nanochemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Analytical Chemistry Electrochemical gas sensor Dielectric spectroscopy law.invention chemistry.chemical_compound chemistry law Differential pulse voltammetry Cyclic voltammetry 0210 nano-technology Cobalt |
| Zdroj: | Mikrochimica acta. 186(6) |
| ISSN: | 1436-5073 |
| Popis: | Graphene oxide (GO) was modified with the cobalt(II) and zinc(II) complexes (CoTFPP and ZnTFPP) of 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin in order to improve the electrocatalytic activity of GO towards catechol (CC) and hydroquinone (HQ). It is found that the CoTFPP-modified GO on a glassy carbon electrode (GCE) displays the highest electrocatalytic activity. The response to CC (at 0.14 V vs. SCE) is linear in the 1-220 μM concentration range. The response to HQ (at 0.04 V vs. SCE) extends from 1 μM to 200 μM. The sensitivity and detection limits are 10.40 μA∙μM |
| Databáze: | OpenAIRE |
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