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Ιδρυματικό Αποθετήριο [SANDBOX]
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| URI | http://purl.tuc.gr/dl/dias/AD24DFB8-32FB-47C1-8803-29984A89A154 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.cattod.2010.02.076 | - |
| Γλώσσα | en | - |
| Μέγεθος | 4 | en |
| Τίτλος | Anodic oxidation of phenol on Ti/IrO2 electrode: Experimental studies | en |
| Δημιουργός | Efthalia Chatzisymeon | en |
| Δημιουργός | Stéphane Fierro | en |
| Δημιουργός | Karafyllis Iason | en |
| Δημιουργός | Καραφυλλης Ιασων | el |
| Δημιουργός | Mantzavinos Dionysis | en |
| Δημιουργός | Μαντζαβινος Διονυσης | el |
| Δημιουργός | Kalogerakis Nikos | en |
| Δημιουργός | Καλογερακης Νικος | el |
| Δημιουργός | Katsaounis Alexandros | en |
| Δημιουργός | Κατσαουνης Αλεξανδρος | el |
| Εκδότης | Elsevier | en |
| Περιγραφή | Δημοσίευση σε επιστημονικό περιοδικό | el |
| Περίληψη | The electrochemical oxidation of acidic solutions of phenol on a Ti/IrO2 anode has been investigated by cyclic voltammetry and bulk electrolysis in a single-compartment cell. In the potential region of oxygen evolution, anodic oxidation resulted in electrode passivation (as evidenced by voltammetric measurements) allegedly due to the formation of a polymeric film on its surface. Phenol degradation increased with increasing temperature in the range investigated 30–80 °C and it was affected by the addition of Cl− and Br− anions in the supporting electrolyte. Complete conversion of 10 mM phenol was achieved after 37 Ah L−1 of charge passed at 80 °C under galvanostatic conditions (50 mA cm−2) in absence of Cl−. In contrast only 10 Ah L−1 were needed in the presence of 35 mM Cl−. The presence of chloride can induce reactions involving chlorohydroxyl radicals and electrogenerated oxidants such as free chlorine. On the other hand, addition of Br− slightly inhibited degradation possibly due to bromide scavenging of electrogenerated active species. Phenol degradation proceeded through the formation of three dominant, aromatic intermediates, namely 1,4-benzoquinone, hydroquinone and pyrocatechol, while total oxidation to CO2 was not significant unless harsh conditions (i.e. high temperatures and charges) were employed. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-10-14 | - |
| Ημερομηνία Δημοσίευσης | 2010 | - |
| Θεματική Κατηγορία | DSA® electrodes | en |
| Θεματική Κατηγορία | Electrochemical oxidation | en |
| Θεματική Κατηγορία | Ti/IrO2 | en |
| Θεματική Κατηγορία | Phenol | en |
| Θεματική Κατηγορία | Organic transformation | en |
| Θεματική Κατηγορία | Wastewater treatment | en |
| Βιβλιογραφική Αναφορά | E.Chatzisymeon ,S. Fierro ,I. Karafyllis , D.Mantzavinos ,N. Kalogerakis, and A.Katsaounis, "Anodic oxidation of phenol on Ti/IrO2 electrode: Experimental studies," Catalysis Today, vol. 151, no. 1-2, pp. 185–189, Prl. 2010. doi: 10.1016/j.cattod.2010.02.076 | en |
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