Mixed oxide thin film electrodes have been prepared by thermal decomposition from alcoholic solution on Pt substrate. In particular, three different anodes have been obtained by co-deposition of Ru (Ruthenium) and Mn (Manganese) oxides, Ru, Mn and Cu (Copper) oxides and co-deposition of Ru, Mn and Co (Cobalt) oxides. The electrochemical behaviour of the prepared electrodes was evaluated by potentiodynamic polarization curves and cyclic voltammetry tests. We also tested and compared their oxidizing ability in the degradation of aqueous solutions containing methyl orange as model compound and small amount of chloride. Galvanostatic experiments were conducted in a membrane-free reactor. The treatment extent was assessed by detection of color and TOC decay. The electrogeneration of active chlorine, chlorate and perchlorate was also monitored. The preliminary results show that ternary oxides coated electrodes exhibit enhanced electrocatalytic activity without producing undesired chlorinated by-products.

Manganese-containing mixed oxide electrodes as anode materials for degradation of model organic pollutants / Sotgiu, Giovanni; Montanaro, Daniele; Orsini, Monica; Petrucci, Elisabetta. - In: CHEMICAL ENGINEERING TRANSACTIONS. - ISSN 2283-9216. - STAMPA. - 57:(2017), pp. 1639-1644. [10.3303/CET1757274]

Manganese-containing mixed oxide electrodes as anode materials for degradation of model organic pollutants

Montanaro, Daniele;Orsini, Monica;Petrucci, Elisabetta
2017

Abstract

Mixed oxide thin film electrodes have been prepared by thermal decomposition from alcoholic solution on Pt substrate. In particular, three different anodes have been obtained by co-deposition of Ru (Ruthenium) and Mn (Manganese) oxides, Ru, Mn and Cu (Copper) oxides and co-deposition of Ru, Mn and Co (Cobalt) oxides. The electrochemical behaviour of the prepared electrodes was evaluated by potentiodynamic polarization curves and cyclic voltammetry tests. We also tested and compared their oxidizing ability in the degradation of aqueous solutions containing methyl orange as model compound and small amount of chloride. Galvanostatic experiments were conducted in a membrane-free reactor. The treatment extent was assessed by detection of color and TOC decay. The electrogeneration of active chlorine, chlorate and perchlorate was also monitored. The preliminary results show that ternary oxides coated electrodes exhibit enhanced electrocatalytic activity without producing undesired chlorinated by-products.
2017
electrodes; manganese oxide; chemical engineering (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Manganese-containing mixed oxide electrodes as anode materials for degradation of model organic pollutants / Sotgiu, Giovanni; Montanaro, Daniele; Orsini, Monica; Petrucci, Elisabetta. - In: CHEMICAL ENGINEERING TRANSACTIONS. - ISSN 2283-9216. - STAMPA. - 57:(2017), pp. 1639-1644. [10.3303/CET1757274]
File allegati a questo prodotto
File Dimensione Formato  
Sotgiu_Manganese-containing-mixed_2017.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.06 MB
Formato Adobe PDF
1.06 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1018875
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? ND
social impact