Cr(III) oxidation with lead dioxide-based anodes

Devilliers, Didier; Thi, Mai Thanh Dinh; Mahé, Éric; Xuan, Que Le

doi:10.1016/j.electacta.2003.07.005

Cited by 89 publications

(56 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This pretreatment commonly involves, first sandblasting, then an alkaline degrease followed by etching in heated oxalic acid or hydrochloric acid for at least 30 minutes. Even this may be insufficient and various undercoats have been proposed-gold, 77 platinum, 78 82 recommend that doped PbO 2 coatings on Ti are prepared with an initial layer F À -doped material to give good adhesion and stability and a top layer of Bi-or Fe-doped lead dioxide to give the desired electrocatalytic activity. Graphite is also degreased and sometimes oxidised and roughened, either mechanically before deposition or, for example, by electroplating from a bath containing fine silica sand.…”

Section: Deposition Of Lead Dioxide Coatingsmentioning

confidence: 99%

“…Lead dioxide anodes have also been used for the production of strong oxidising agents such as dichromate, 78,[111][112][113][166][167][168] manganese (III) 109,114,119,169,170 and cerium(IV). [169][170][171][172] Most commonly, these processes are used to regenerate the spent oxidising agent from the oxidation of organic compounds (e.g.…”

Section: The Manufacture Of Chemicalsmentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposited lead dioxide coatings

2011

View full text Add to dashboard Cite

Lead dioxide coatings on inert substrates such as titanium and carbon now offer new opportunities for a material known for 150 years. It is now recognised that electrodeposition allows the preparation of stable coatings with different phase structures and a wide range of surface morphologies. In addition, substantial modification to the physical properties and catalytic activities of the coatings are possible through doping and the fabrication of nanostructured deposits or composites. In addition to applications as a cheap anode material in electrochemical technology, lead dioxide coatings provide unique possibilities for probing the dependence of catalytic activity on layer composition and structure (critical review, 256 references).

show abstract

Section: Deposition Of Lead Dioxide Coatingsmentioning

confidence: 99%

Section: The Manufacture Of Chemicalsmentioning

confidence: 99%

Electrodeposited lead dioxide coatings

2011

View full text Add to dashboard Cite

show abstract

“…This interlayer may be helpful to improve the electrode conductivity, stability and activity. The interlayers proposed include platinum (Devilliers et al, 2003), TiO 2 /Ta 2 O 5 (Ueda et al, 1995) and TiO 2 /RuO 2 (Hine et al, 1984). Also some people proposed multi interlayers before catalyst layer applied.…”

Section: The Preparation Of Lead Dioxidementioning

confidence: 99%

Anodic Materials with High Energy Efficiency for Electrochemical Oxidation of Toxic Organics in Waste Water

Wang¹,

Chen²,

Guo³

et al. 2012

Industrial Waste

View full text Add to dashboard Cite

“…[4][5][6] The a-and b-types of PbO 2 , applied layer by layer on metal anodes have been widely used in electrolysis. 7,8 Generally, titanium is not a viable substrate for practical electrodes in electrodepositing non-ferrous metals. Aluminum is relatively cheap and has a good conductivity.…”

Section: Introductionmentioning

confidence: 99%

Enhanced stability and electrochemical performance of a BaTiO3/PbO2 electrode via a layer obtained with layer electrodeposition

Muthuraman¹,

Karunakaran²,

Moon³

2016

Mater. Tehnol.

View full text Add to dashboard Cite

Herein, the electrodeposition of BaTiO3 and PbO2 on Ti using the layer-by-layer method under different current densities (CDs) and times, was investigated. The weight difference in the deposited BaTiO3 explains the BaTiO3 weight decrease by one order with the increasing CD from 0.025 A cm -2 to 0.125 A cm -2 and also follows the same trend during the PbO2 deposition. The PbO2 deposition at different CDs demonstrates that the deposited PbO2 weight increases by one order with the increasing CD. Also, cyclic voltammetry results explain the low and moderate deposition CDs and the time suitably shows the PbO2 redox behavior. According to SEM and XRD, a CD of 0.05 A cm -2 affects the formation of crystalline BaTiO3 and PbO2 more than higher or lower CDs. Finally, the BaTiO3 and PbO2 layer-by-layer electrode electrodeposited at a moderate CD showed a better stability than the electrode including only PbO2. The use of BaTiO3 is promising for the stability of the PbO2 electrode preparation. Keywords: BaTiO 3 , PbO 2 , electrodeposition, layer by layer, electrode stability Preiskovana je bila elektrodepozicija BaTiO3 in PbO2 na Ti, z uporabo metode plast na plast, pri razli~nih~asih in gostotah toka (CD). Razlike v te`i BaTiO3 razlo`ijo nara{~anje te`e BaTiO3 za red velikosti zaradi nara{~anja CD, od 0,025 A cm -2 do 0,125 A cm -2 . Podoben trend je bil opa`en tudi pri nana{anju PbO2. Pri nana{anju PbO2, razli~ni CD ka`ejo nara{~anje te`e nanesenega PbO2 za red velikosti z nara{~anjem CD. Tudi cikli~na voltametrija razlo`i majhen in srednji CD in~as ustrezno ka`e redoks vedenje PbO2. SEM in XRD z 0,05 A cm -2 vodita nastanek kristalini~nega BaTiO3 in PbO2 bolj kot vi{ji in ni`ji CD. Kon~no se ka`e bolj{a stabilnost elektrode elektronane{enega BaTiO3 in PbO2 plast na plast pri zmernih CD, kot pa pri PbO2 elektrodi. Uporaba BaTiO3 je obetajo~a za stabilnost priprave PbO2 elektrode. Klju~ne besede: BaTiO3, PbO2, elektro nana{anje, plast na plast, stabilnost elektrode

show abstract

Cr(III) oxidation with lead dioxide-based anodes

Cited by 89 publications

References 23 publications

Electrodeposited lead dioxide coatings

Electrodeposited lead dioxide coatings

Anodic Materials with High Energy Efficiency for Electrochemical Oxidation of Toxic Organics in Waste Water

Enhanced stability and electrochemical performance of a BaTiO3/PbO2 electrode via a layer obtained with layer electrodeposition

Contact Info

Product

Resources

About