Comparative studies on the electro-catalytic oxidation performance of surfactant–carbon nanotube-modified PbO2 electrodes

Duan, Xiaoyue; Ma, Fang; Zhong-xin, Yuan; Chang, Limin; Jin, Xintong

doi:10.1016/j.jelechem.2012.05.012

Cited by 64 publications

(22 citation statements)

References 41 publications

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“…259 Besides, some organic sulfonic acid functionalized CNTs possess well-tuned interfacial properties, which eliminates aggregation and assists the incorporation of CNTs into a PbO 2 film, affording high electro-catalytic activity and prolonged electrode life span. 260 …”

Section: Sulfonationmentioning

confidence: 99%

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

et al. 2015

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Carbon nanotubes are promising materials for various applications. In recent years, progress in manufacturing and functionalizing carbon nanotubes has been made to achieve the control of bulk and surface properties including the wettability, acid-base properties, adsorption, electric conductivity and capacitance. In order to gain the optimal benefit of carbon nanotubes, comprehensive understanding on manufacturing and functionalizing carbon nanotubes ought to be systematically developed. This review summarizes methodologies of manufacturing carbon nanotubes via arc discharge, laser ablation and chemical vapor deposition and functionalizing carbon nanotubes through surface oxidation and activation, doping of heteroatoms, halogenation, sulfonation, grafting, polymer coating, noncovalent functionalization and nanoparticle attachment. The characterization techniques detecting the bulk nature and surface properties as well as the effects of various functionalization approaches on modifying the surface properties for specific applications in catalysis including heterogeneous catalysis, photocatalysis, photoelectrocatalysis and electrocatalysis are highlighted.

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Section: Sulfonationmentioning

confidence: 99%

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

et al. 2015

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“…As a novel titanium matrix, porous Ti has the advantages of good corrosion resistance, high porosity, large surface area and good biocompatibility, widely used in aerospace, medical and chemical field 27,28 29 . 15,[31][32][33] The literatures mainly focused on that CNT has been doped into the oxide layer to improve the catalytic ability of electrode by electro-deposition method 34 , but, little attention has been paid to CNT doped into the intermediate layer of electrode by other methods. 30 CNTs have been proposed as the ideal metal catalyst support for sensing and electro-catalytic application.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a novel porous Ti/SnO₂–Sb₂O₃–CNT/PbO₂electrode for the anodic oxidation of phenol wastewater

et al. 2015

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a Porous Ti/SnO2-Sb2O3-CNT/PbO2 electrodes were successfully fabricated using thermal decomposition technique and electro-deposition technologies. Characterization experiments including Scanning electron microscopy (SEM), Energydispersive spectroscopy (EDS), X-ray diffraction (XRD), Cyclic voltammertry (CV), Electrochemical Impedance Spectroscopy (EIS) and accelerated life time test was performed to evaluate the effect of CNT-doped SnO2-Sb2O3 intermediate layer on PbO2 electrode. The results showed that CNT could be doped into the SnO2-Sb2O3 intermediate layer by thermal decomposition. Compared with porous Ti/SnO2-Sb2O3 substrate, CNT-doped induced the substrate surface forming a fibrous structure, it means that porous Ti/SnO2-Sb2O3-CNT substrate would provide more active sites for PbO2 deposition and could make a compact and fine surface coating. Besides, the CNT modified electrode had higher active surface area and higher electrochemical activity than without CNT doped. The life of porous Ti/SnO2-Sb2O3-CNT/PbO2 (296h) was 1.38 times as much as that of porous Ti/SnO2-Sb2O3/PbO2 electrode (214h). Electro-catalytic oxidation of phenol in aqueous solution was studied to evaluate the electrochemical oxidation ability in environment science. Porous Ti/SnO2-Sb2O3-CNT/PbO2 electrode displayed not only excellent electro-catalytic performance but also low energy consumption using phenol as a model organic pollutant. The porous Ti/SnO2-Sb2O3-CNT/PbO2 electrode has higher kinetic rate constant and chemical oxygen demand (COD), which is 1.73 and 1.09 times those of the porous Ti/SnO2-Sb2O3/PbO2 electrode, respectively. Moreover, CNT-doped can further increase the hydroxyl radical (·OH) generation capacity. All these results illustrated that porous Ti/SnO2-Sb2O3-CNT/PbO2 electrode for pollutants degradation and had a great potential application.

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“…Also several studies have surveyed the electrodeposition of the combination of CNTs/metal ions or CNTs/metal oxides on the surface of various electrode substrates [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Structural and electrochemical characterization of carbon electrode modified by multi-walled carbon nanotubes and surfactant

Pajootan

Arami

2013

Electrochimica Acta

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Comparative studies on the electro-catalytic oxidation performance of surfactant–carbon nanotube-modified PbO2 electrodes

Cited by 64 publications

References 41 publications

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

Preparation and characterization of a novel porous Ti/SnO₂–Sb₂O₃–CNT/PbO₂electrode for the anodic oxidation of phenol wastewater

Structural and electrochemical characterization of carbon electrode modified by multi-walled carbon nanotubes and surfactant

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Comparative studies on the electro-catalytic oxidation performance of surfactant–carbon nanotube-modified PbO2 electrodes

Cited by 64 publications

References 41 publications

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

Carbon nanotube catalysts: recent advances in synthesis, characterization and applications

Preparation and characterization of a novel porous Ti/SnO2–Sb2O3–CNT/PbO2electrode for the anodic oxidation of phenol wastewater

Structural and electrochemical characterization of carbon electrode modified by multi-walled carbon nanotubes and surfactant

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Preparation and characterization of a novel porous Ti/SnO₂–Sb₂O₃–CNT/PbO₂electrode for the anodic oxidation of phenol wastewater