Academic Journal
Electrochemical behavior of H3PW12O40/ acid-activated bentonite powders
| العنوان: | Electrochemical behavior of H3PW12O40/ acid-activated bentonite powders |
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| المؤلفون: | Mojović Zorica, Rožić Ljiljana, Novaković Tatjana, Vuković Zorica, Petrović Srđan, Ranđelović Danijela, Mitrić Miodrag |
| المصدر: | Chemical Industry and Chemical Engineering Quarterly, Vol 18, Iss 2, Pp 329-338 (2012) |
| بيانات النشر: | Association of the Chemical Engineers of Serbia, 2012. |
| سنة النشر: | 2012 |
| المجموعة: | LCC:Chemical engineering |
| مصطلحات موضوعية: | bentonite modified electrode, phosphotungstic acid, oxidation of nitrites, cyclic voltammetry, Chemical engineering, TP155-156, Chemical industries, HD9650-9663 |
| الوصف: | Electrochemical behavior of 12-tungstophosphoric acid (HPW)/acid-activated bentonite (AAB) powders with various loadings of HPW was investigated. The physicochemical properties of the prepared powders were examined by X-ray powder diffraction, nitrogen adsorption-desorption isotherms, atomic force microscopy and cyclic voltammetry measurements. The results indicated that the prepared powders are composed mainly of oriented domains of large rock blocks, probably resulting from a preferable deposition of bentonite particles having a face-to-face interaction. The particles had a mainly disordered mesoporous structure with a pore volume that varied according to the pore size in the range of 2-50 nm. In addition, the particles had crystallite size between 4.9 and 9.0 nm. The electrocatalytic activities of prepared HPW/Aelectrodes were studied in the oxidation of NO2-ions and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than Aelectrode. The best electroactivity was observed for HPW3/Aelectrode (AAB+20 wt. % HPW) and the limit of detection (3σ) was determined as 8 μM. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1451-9372 2217-7434 |
| Relation: | https://doaj.org/toc/1451-9372; https://doaj.org/toc/2217-7434 |
| DOI: | 10.2298/CICEQ110907009M |
| URL الوصول: | https://doaj.org/article/09f571ded8d9467eb413171eae4ebbb2 |
| رقم الانضمام: | edsdoj.09f571ded8d9467eb413171eae4ebbb2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14519372 22177434 |
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| DOI: | 10.2298/CICEQ110907009M |