High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate

Zhang, Wenli; Lin, Haibo; Kong, Haishen; Lu, Haiyan; Yang, Zhe; Liu, Tingting

doi:10.1016/j.ijhydene.2014.08.039

Cited by 61 publications

(32 citation statements)

References 39 publications

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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 . 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 .…”

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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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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“…exposed that the energy band coupling effect is the significant factor . In addition, carbon nanotubes (CNT) is a new type material which not only has excellent electrical properties but also high chemical stability . More researchers have mainly paid attentions to doping CNT into the layer in order to enhance the electrocatalytic (EC) ability and electrical conductivity of the electrodes .…”

Section: Introductionmentioning

confidence: 99%

Study on the Preparation and Characterizations of an Improved Porous Ti/TiO₂/CdS‐CNT/C₃N₄ Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue

et al. 2018

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The porous Ti/TiO 2 /CdS-CNT/C 3 N 4 photoelectrode were successfully fabricated via anodic oxidation method, chemical electrodeposition and dip-coating method, respectively. The morphology, crystal structure and elements of the photoelectrodes were characterized by scanning electron microscopy (SEM), Xray diffraction (XRD), energy-dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) respectively. The cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammograms curves (LSV), mott-schottky (MS) and chronoamperometric curves were applied to research the oxidation-reduction quality, resistance, carriers concentration and photocurrent stability respectively. Addtionally, the service lifetime of electrodes were measured in accelerated life test. The photo-electrocatalytic (PEC) performance of the photoelectrodes were evaluated in the degradation experiment of methylene blue. Compared with the Ti/TiO 2 and Ti/TiO 2 /CdS-CNT electrode, the Ti/TiO 2 /CdS-CNT/C 3 N 4 electrode possesses smaller grain size on the surface, more uniform crystal morphology, lower resistance, bigger photocurrent density, oxygen evolution potential and photogenerated carriers concentration and performed higher PEC activity. Moreover, the generation of much holes, H 2 O 2 , and ·OH can promote the PEC degradation of organic pollutants. Particularly, C 3 N 4 can further increase ·OH generation capacity.

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“…It is widely used in the aerospace, medical and chemical elds. 21,22 This work focused on investigating the structure and electrochemical performance of porous Ti as a PbO 2 electrode substrate. Recent studies revealed the signicance of porous Ti on improving the performance of electrodes.…”

Section: Introductionmentioning

confidence: 99%

Study on the performance of an improved Ti/SnO₂–Sb₂O₃/PbO₂ based on porous titanium substrate compared with planar titanium substrate

et al. 2015

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This present work focused on systematically studying the effect of a porous Ti substrate on the surface structure and electrochemical properties of lead dioxide electrodes prepared by anodic deposition under galvanostatic conditions. Characterization experiments, including scanning electron microscopy (SEM), X-ray diffraction (XRD), linear sweep voltammetry (LSV), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), accelerated life time testing and a degradation experiment of methylene blue trihydrate were performed to determine the effect of different Ti substrates. Compared with the planar Ti substrate, the results showed that the porous Ti substrate decreased the grain size of lead dioxide and formed a compact and fine surface coating. The electrode had smaller crystalline particles and a more compact structure. The porous Ti/SnO 2 -Sb 2 O 3 /PbO 2 electrode had a higher oxygen evolution overpotential, a larger active surface area and higher electrochemical activity. The lifetime of the porous Ti/SnO 2 -Sb 2 O 3 /PbO 2 electrode (214 h) was 3.69 times higher than that of the planar Ti/SnO 2 -Sb 2 O 3 /PbO 2 electrode (58 h). Moreover, the degradation rate constant of methylene blue trihydrate on the porous Ti substrate lead dioxide electrode (0.03868 min À1 ) was 1.52 times than that of the planar Ti substrate lead dioxide electrode (0.02542 min À1 ). Fig. 1 SEM morphology of cross-sections for (a) porous Ti/SnO 2 -Sb 2 O 3 /PbO 2 electrode (Â500), (b) planar Ti/SnO 2 -Sb 2 O 3 electrode.

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High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate

Cited by 61 publications

References 39 publications

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

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

Study on the Preparation and Characterizations of an Improved Porous Ti/TiO₂/CdS‐CNT/C₃N₄ Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue

Study on the performance of an improved Ti/SnO₂–Sb₂O₃/PbO₂ based on porous titanium substrate compared with planar titanium substrate

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High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate

Cited by 61 publications

References 39 publications

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

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

Study on the Preparation and Characterizations of an Improved Porous Ti/TiO2/CdS‐CNT/C3N4 Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue

Study on the performance of an improved Ti/SnO2–Sb2O3/PbO2 based on porous titanium substrate compared with planar titanium substrate

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

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

Study on the Preparation and Characterizations of an Improved Porous Ti/TiO₂/CdS‐CNT/C₃N₄ Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue

Study on the performance of an improved Ti/SnO₂–Sb₂O₃/PbO₂ based on porous titanium substrate compared with planar titanium substrate