Characterization of boron doped diamond electrodes during oxidation processes: Relationship between electrochemical activity and ageing time

Polcaro, Am; Ricci, Pier Carlo; Palmas, Simonetta; Ferrara, Francesca; Anedda, Alberto

doi:10.1016/j.tsf.2006.06.033

Cited by 10 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1a presents the cyclic voltammetry obtained for a solution containing just the supporting electrolyte (NaCl) and both NaCl and NOR for all the electrodes under study. Comparing the supporting electrolytes CVs of the BDD and the BCE anodes, the electrochemical window is wider for the BDD anode (2.05 V vs. Ag/AgCl) than for the BCE (1.85 V vs. Ag/AgCl for the BDD) as expected (Lobato et al, 2005;Panizza et al, 2008;Polcaro et al, 2006). The supporting electrolyte voltammogram obtained for the CuO anode practically overlaps the one obtained for the BCE (not shown).…”

Section: 1-voltammetric Analysissupporting

confidence: 67%

Effect of the CuO addition on a Sb-doped SnO2 ceramic electrode applied to the removal of Norfloxacin in chloride media by electro-oxidation

et al. 2020

View full text Add to dashboard Cite

Section: 1-voltammetric Analysissupporting

confidence: 67%

Effect of the CuO addition on a Sb-doped SnO2 ceramic electrode applied to the removal of Norfloxacin in chloride media by electro-oxidation

et al. 2020

View full text Add to dashboard Cite

“…However, none of these materials have the combination of both activity and stability necessary for effectiveness and durability to be practical. Recently, boron-doped conductive diamond anodes have been used in EO and appear to be one of the most promising technologies in the treatment of organics in industrial wastes [18]. Compared with other electrode materials, conductive diamond has shown a higher stability, efficiency and overpotential for both oxygen and hydrogen evolution [19,20].…”

Section: Introductionmentioning

confidence: 99%

A combined electrocoagulation–electrooxidation treatment for industrial wastewater

Linares-Hernández¹,

Dı́az²,

Bilyeu³

et al. 2010

Journal of Hazardous Materials

135

View full text Add to dashboard Cite

“…5 The processes occurring on the BDD semiconducting electrodes are irreversible. 22 The potential window of electrolytic water stability rises with increasing dopant concentration. Not only the dopant level but also the surface termination type (hydrogen and oxygen [23][24][25] and other compounds added during plasma etching, i.e.…”

mentioning

confidence: 99%

Dynamic Electrochemical Impedance Spectroscopy (DEIS) as a Tool for Analyzing Surface Oxidation Processes on Boron-Doped Diamond Electrodes

Ryl

Bogdanowicz

Ślepski

et al. 2014

J. Electrochem. Soc.

View full text Add to dashboard Cite

Surface oxidation processes play a key role in understanding electrochemical properties of boron-doped diamond (BDD) electrodes. The type of surface termination groups, which create the potential window of electrolytic water stability or hydrophobicity, influences such properties. In this study the kinetics of oxidation process under anodic polarization were studied in situ by means of Dynamic Electrochemical Impedance Spectroscopy (DEIS) technique. This novel approach allows for obtaining the impedance data for nonstationary systems. It has been proven that for [B] dopant level of 10k ppm, polarization to 1.5 V vs. Ag|AgCl is sufficient to initiate transformation of the film terminating BDD electrodes. XPS analysis and wettability measurements confirmed oxidation under given conditions. Boron-doped diamond (BDD) electrodes have been recently studied in-depth because of their outstanding electrochemical features which include a wide electrochemical potential window in aqueous electrolytes, 1 high anodic stability, 2 and particular electrochemical stability in harsh environments. 3,4 These properties make BDD a useful electrode material for applications in wastewater treatment, 5-7 electrochemical sensing 8-11 and electrocatalysis. 12-14 BDD is mostly synthesized by hot-filament CVD (HF CVD) 15,16 or microwave plasma-assisted CVD (MW PA CVD) and in situ doped with boron precursors. 17 The boron dopant density influences not only the electrical properties of electrode, but also its morphology and structure (sp 3 /sp 2 ratio). 6,18,19 Nevertheless, the electrochemical behavior of BDD depends on these properties. 20,21 Boron concentration has impact on the electrochemical and electrical properties of BDD electrodes. The final density of boron dopant, achieved by using microwave plasma-assisted chemical vapor deposition (MW PA CVD), ranges from 10 16 to 10 21 atomsccm −3 , for the dopant density of 2 · 10 20 the p-type semiconducting material transform to semimetal. 5 The processes occurring on the BDD semiconducting electrodes are irreversible. 22 The potential window of electrolytic water stability rises with increasing dopant concentration. Not only the dopant level but also the surface termination type (hydrogen and oxygen 23-25 and other compounds added during plasma etching, i.e. CF 4 , Cl 2 , Ar and CH 4 26 ) of boron-doped diamond electrodes is an important factor in the electrode kinetics 27 and its reversibility. 28 Many kinds of surface treatment can be utilized, including dry and wet processes such as plasma treatment or electrochemical polarization. Recently, many investigators focus on hydrogen terminations (HT-BDD) and oxygen terminations (OT-BDD). BDD films deposited by microwave plasmaassisted chemical vapor deposition mainly present HT-BDD due to using hydrogen plasma. 6,11 Transformation of HT-BDD to OT-BDD is worthy of interest. It can be achieved by oxygen plasma treatments, chemical oxidation or anodic polarization. 29,30 As a result of such transformation, different combinations of bonds can be ...

show abstract

Characterization of boron doped diamond electrodes during oxidation processes: Relationship between electrochemical activity and ageing time

Cited by 10 publications

References 27 publications

Effect of the CuO addition on a Sb-doped SnO2 ceramic electrode applied to the removal of Norfloxacin in chloride media by electro-oxidation

Effect of the CuO addition on a Sb-doped SnO2 ceramic electrode applied to the removal of Norfloxacin in chloride media by electro-oxidation

A combined electrocoagulation–electrooxidation treatment for industrial wastewater

Dynamic Electrochemical Impedance Spectroscopy (DEIS) as a Tool for Analyzing Surface Oxidation Processes on Boron-Doped Diamond Electrodes

Contact Info

Product

Resources

About