Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders
2012
Аутори
Mojovic, ZoricaRozic, Ljiljana
Novaković, Tatjana
Vuković, Zorica M.
Petrović, Srđan P.
Randelovic, Danijela
Mitrić, Miodrag
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
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/AAB electrodes were studied in the oxidation of NO2- and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than AAB electrode. Th...e best electroactivity was observed for HPW3/AAB electrode (AAB + + 20 wt % HPW) and the limit of detection (3 sigma) was determined as 8 mu M.
Кључне речи:
bentonite modified electrode / phosphotungstic acid / oxidetion of nitrites / cyclic voltammetryИзвор:
Chemical Industry and Chemical Engineering Quarterly / CICEQ, 2012, 18, 2, 329-338Финансирање / пројекти:
- Динамика нелинеарних физичкохемијских и биохемијских система са моделирањем и предвиђањем њихових понашања под неравнотежним условима (RS-MESTD-Basic Research (BR or ON)-172015)
- Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
DOI: 10.2298/CICEQ110907009M
ISSN: 1451-9372
WoS: 000309644600019
Scopus: 2-s2.0-84864468509
Колекције
Институција/група
VinčaTY - JOUR AU - Mojovic, Zorica AU - Rozic, Ljiljana AU - Novaković, Tatjana AU - Vuković, Zorica M. AU - Petrović, Srđan P. AU - Randelovic, Danijela AU - Mitrić, Miodrag PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5084 AB - 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/AAB electrodes were studied in the oxidation of NO2- and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than AAB electrode. The best electroactivity was observed for HPW3/AAB electrode (AAB + + 20 wt % HPW) and the limit of detection (3 sigma) was determined as 8 mu M. T2 - Chemical Industry and Chemical Engineering Quarterly / CICEQ T1 - Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders VL - 18 IS - 2 SP - 329 EP - 338 DO - 10.2298/CICEQ110907009M ER -
@article{ author = "Mojovic, Zorica and Rozic, Ljiljana and Novaković, Tatjana and Vuković, Zorica M. and Petrović, Srđan P. and Randelovic, Danijela and Mitrić, Miodrag", year = "2012", abstract = "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/AAB electrodes were studied in the oxidation of NO2- and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than AAB electrode. The best electroactivity was observed for HPW3/AAB electrode (AAB + + 20 wt % HPW) and the limit of detection (3 sigma) was determined as 8 mu M.", journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ", title = "Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders", volume = "18", number = "2", pages = "329-338", doi = "10.2298/CICEQ110907009M" }
Mojovic, Z., Rozic, L., Novaković, T., Vuković, Z. M., Petrović, S. P., Randelovic, D.,& Mitrić, M.. (2012). Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18(2), 329-338. https://doi.org/10.2298/CICEQ110907009M
Mojovic Z, Rozic L, Novaković T, Vuković ZM, Petrović SP, Randelovic D, Mitrić M. Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2012;18(2):329-338. doi:10.2298/CICEQ110907009M .
Mojovic, Zorica, Rozic, Ljiljana, Novaković, Tatjana, Vuković, Zorica M., Petrović, Srđan P., Randelovic, Danijela, Mitrić, Miodrag, "Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18, no. 2 (2012):329-338, https://doi.org/10.2298/CICEQ110907009M . .