Influence of rare earths doping on the structure and electro-catalytic performance of Ti/Sb–SnO2 electrodes

Cui, Yu-Hong; Feng, Yujie; Liu, Zheng-Qian

doi:10.1016/j.electacta.2009.04.041

Cited by 131 publications

(67 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The pH evolution during the electrolysis was recorded in Figure 5c. A sharp decrease in solution pH was observed during the electrochemical degradation of CAP in the weak acid, neutral or basic environments, which was probably due to the generation of some organic acids [31] or competing oxidation of water (2H 2 O → O 2 + 4H + + 4e -) [32]. While for pH 3, which had best phenol and TOC removals, the pH decreased slightly at first, then even a little increase was detected in the electrolytic process.…”

Section: Effect Of Initial Phmentioning

confidence: 93%

Electrochemical degradation of chloramphenicol with a novel Al doped PbO2 electrode: Performance, kinetics and degradation mechanism

Chen

Xia

Dai

2015

Electrochimica Acta

192

View full text Add to dashboard Cite

Section: Effect Of Initial Phmentioning

confidence: 93%

Electrochemical degradation of chloramphenicol with a novel Al doped PbO2 electrode: Performance, kinetics and degradation mechanism

Chen

Xia

Dai

2015

Electrochimica Acta

192

View full text Add to dashboard Cite

“…Nevertheless, when doped with Ar, B, Bi, F, P, or Sb, its conductivity increases considerably [1][2][3][4][5][6]. There have also been attempts to use less common elements as doping agents, like Ir, Rh, and various lanthanides [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 96%

Anodic oxidation of organic pollutants on a Ti/SnO2–Sb2O4 anode

2011

View full text Add to dashboard Cite

A Ti/SnO 2 -Sb 2 O 4 electrode was prepared by alternate Sn and Sb electrodepositions using the thermoelectrochemical method. The chemical, electrochemical, and structural characterization of the electrode was performed and it was tested in the anodic oxidation of several pollutants, phenol, ibuprofen, acid orange 7 (AO7), and diclofenac, all in aqueous 0.035 M Na 2 SO 4 solutions at current densities of 10 and 20 mA cm -2 . After the 24 h assay, removal of chemical oxygen demand, total organic carbon (TOC) and absorbance were very high, especially at the higher current density. TOC removals presented the lowest value. However, after 24 h at 20 mA cm -2 , TOC removals were: phenol-94%; ibuprofen-83%; AO7-88%; and diclofenac-73%. Combustion efficiency and instantaneous and mineralization current efficiencies were also determined.

show abstract

“…SnO 2 is an n-type semiconductor with a wide band gap, and its electrical conductivity is due to a modest level of non-stoichiometric impurities [12]. Modification of SnO 2 electrode by addition of selected dopants has been applied to reduce the band gap and increase the conductivity as well as electrocatalytic activity [13]. Antimony-doped Tibased SnO 2 electrodes (Ti/Sb-SnO 2 ) is a suitable material as the anodes in the electrocatalytic degradation of organic contaminants including phenol, benzoquinone, and dichlorvos [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Comparison of electrocatalytic characterization of Ti/Sb-SnO2 and Ti/F-PbO2 electrodes

Yao

Jiao

et al. 2015

J Solid State Electrochem

View full text Add to dashboard Cite

Electrocatalytic oxidation is a promising process for degrading toxic and biorefractory organic pollutants in wastewater treatment. Selection of electrode materials is crucial for electrochemical oxidation process. In this study, Ti/F-PbO 2 and Ti/Sb-SnO 2 electrodes were chosen to compare their electrocatalytic characterization, which were prepared by electrodeposition and thermal decomposition method, respectively. The surface morphology and crystal structure of two electrodes were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The linear polarization curves show that Ti/Sb-SnO 2 electrodes possess higher oxygen evolution overpotential than Ti/F-PbO 2 electrodes. But the stability and corrosion resistance ability of Ti/F-PbO 2 electrode was higher than that of Ti/Sb-SnO 2 electrode. The electrocatalytic activity of Ti/F-PbO 2 and Ti/Sb-SnO 2 electrodes was examined for the electrochemical oxidation of malachite green (MG). The bulk electrolysis shows that the Ti/SbSnO 2 electrodes exhibit the higher electrocatalytic activity for the degradation of MG than Ti/F-PbO 2 electrodes, and the degradation process is good fitting for the pseudo-first order reaction. The higher electrocatalytic activity of Ti/ Sb-SnO 2 electrodes can be attributed to the higher oxygen evolution overpotential.

show abstract

Influence of rare earths doping on the structure and electro-catalytic performance of Ti/Sb–SnO2 electrodes

Cited by 131 publications

References 36 publications

Electrochemical degradation of chloramphenicol with a novel Al doped PbO2 electrode: Performance, kinetics and degradation mechanism

Electrochemical degradation of chloramphenicol with a novel Al doped PbO2 electrode: Performance, kinetics and degradation mechanism

Anodic oxidation of organic pollutants on a Ti/SnO2–Sb2O4 anode

Comparison of electrocatalytic characterization of Ti/Sb-SnO2 and Ti/F-PbO2 electrodes

Contact Info

Product

Resources

About