Electrocatalysis degradation of coal tar wastewater using a novel hydrophobic benzalacetone modified lead dioxide electrode

Lead dioxide is a strong oxidizer in sulfuric acid, consequently electrochemical oxidation of solution species at a lead dioxide anode may occur by a two-step, C-E process (chemical oxidation of solution species by PbO2 followed by electrochemical regeneration of the reduced lead dioxide surface). The maximum rate of each step has been determined in sulfuric acid for specified lead dioxide surfaces and compared with the rates observed for the electrochemical oxidation of cerium(III) and manganese(II) on the same electrode surfaces. While the rate of electrochemical oxidation of a partially reduced PbO2 surface may be sufficient to support the observed rates of CeIII and MnII oxidation at the lead dioxide anode, the rate of chemical reaction between PbO2 and the reducing species is not. Hence it is concluded that the lead dioxide electrode functions as a simple, 'inert' electron-transfer agent during the electrochemical oxidation of CellI and MnII in sulfuric acid. In general, it will most probably be the rate of the chemical step which determines the feasibility or otherwise of the C-E mechanism.

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Preparation and characterization of lead dioxide electrode with three-dimensional porous titanium substrate for electrochemical energy storage

Electrochimica Acta ◽

10.1016/j.electacta.2014.06.175 ◽

2014 ◽

Vol 139 ◽

pp. 209-216 ◽

Cited By ~ 24

Author(s):

Wenli Zhang ◽

Haibo Lin ◽

Haishen Kong ◽

Haiyan Lu ◽

Zhe Yang ◽

...

Keyword(s):

Energy Storage ◽

Lead Dioxide ◽

Three Dimensional ◽

Titanium Substrate ◽

Porous Titanium ◽

Electrochemical Energy Storage ◽

Lead Dioxide Electrode ◽

Electrochemical Energy

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Electrodeposited Lead Dioxide Electrode. VI. Moduli of Elasticity and Ultimate Strengths of the Strong Lead Dioxide Electrodeposited under the Suitable Electrolytic Conditions Discovered up to this Time.

The Journal of the Society of Chemical Industry Japan ◽

10.1246/nikkashi1898.57.611 ◽

1954 ◽

Vol 57 (9) ◽

pp. 611-613

Author(s):

Yasuichi Shibasaki

Keyword(s):

Lead Dioxide ◽

Lead Dioxide Electrode ◽

Moduli Of Elasticity

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Preparation and Application of Lead Dioxide Electrode for Zinc Electrolysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.785-786.1125 ◽

2013 ◽

Vol 785-786 ◽

pp. 1125-1129

Author(s):

Xiao Yong Yang ◽

Pei Xian Zhu ◽

Yun Sen Si

Keyword(s):

Surface Characterization ◽

Catalytic Properties ◽

Lead Dioxide ◽

Manufacturing Cost ◽

X Ray Diffraction ◽

Simulation Test ◽

X Ray ◽

Zinc Smelter ◽

Lead Dioxide Electrode

According to the process of anodic oxygen evolution in sulfate system for zinc electrolysis,Ti-base lead dioxide electrode can be prepared to use in this case.The surface characterization of the electrode was studied by Scanning electron microscopy(SEM) and X-ray diffraction(XRD).The electrode lifetime was tested in 1mol/L H2SO4solution at 60°C,and the electro-catalytic properties was examined by polarization curves.Then these samples was enlarged and simulation test was conducted at Mengzi marriage zinc smelter in Yunnan.The results show that the electro-catalytic properties is better and the electrodes lifetime is longer compared to the traditional lead electrode.Moreover,it has a significant effect in reducing energy consumption, manufacturing cost and improving the production and grade of zinc.

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