Carbon/PbO2 asymmetric electrochemical capacitor based on methanesulfonic acid electrolyte

Perret, Philippe; Khani, Zohreh; Brousse, Thierry; Bélanger, Daniel; Guay, Daniel

doi:10.1016/j.electacta.2011.05.125

Cited by 79 publications

(42 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After an initial activation period, the performance of the system remained constant and showed no sign of degradation over 5000 cycles [50]. Nanostructured lead dioxide coatings on titanium or carbon substrates have also found use in the oxidative removal of organic contaminants from environmental waste solutions [51], electrodes for lightweight static batteries [52], and energy storage in soluble lead flow batteries [53].…”

Section: Anodic Deposition Of Metal Oxidesmentioning

confidence: 99%

“…The deposition of tin occurred fast over a wide range of current densities, as evidenced from the mixed control region where the cathodic current density rose very steeply with respect to the electrode potential. For example, the cathodic current density reached up to 50 ion and increased at a higher electrode rotation speed. Co-evolution of hydrogen was shown to occur at more positive potentials and the mass transport region became shorter at higher rotation speeds and at a higher concentration of stannous ion.…”

Section: Electroplating Of Single Metalsmentioning

confidence: 99%

“…The review considers classical 20 μm thick coatings (e.g. for engine bearings) to 50 e.g. TiO 2 , W/C e.g.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Versatile electrochemical coatings and surface layers from aqueous methanesulfonic acid

Walsh

León

2014

Surface and Coatings Technology

View full text Add to dashboard Cite

Ever tightening environmental pressure together with the continued need for coatings able to meet challenging service environments have stimulated advances in coating technology. In the case of electrochemical techniques, the classical techniques of electrodeposition and anodising are being upgraded to meet the need for modern surface engineering coatings (including nanostructured films) on metals. A major challenge is to retain conventional processing, including aqueous solutions, simple power supplies and existing electrolyte tanks while using cost effective, 'green' electrolytes. One successful direction has been the emergence of electrolytes based on methanesulfonic acid, MSA which has good electrolytic conductivity and is capable of dissolving many metals as well as acting as a useful medium for dispersion of solids prior to electrophoretic coating. A range of application methods result, including electroplating, anodising and electrophoretic deposition from a stable, aqueous sol. A diverse range of coating materials is emerging, including metals, alloys, porous metal oxide films, conductive polymers and many composites. This review illustrates the usefulness and applications of MSA electrolytes using recent examples from the authors' laboratories and others. Developing coatings, including alternating multilayers of Sn and Cu, nanostructured metals, hierarchical pores, nanotubular metal oxides and graphene composites are briefly considered. This is a review with 94 references.

show abstract

Section: Anodic Deposition Of Metal Oxidesmentioning

confidence: 99%

Section: Electroplating Of Single Metalsmentioning

confidence: 99%

See 1 more Smart Citation

Versatile electrochemical coatings and surface layers from aqueous methanesulfonic acid

Walsh

León

2014

Surface and Coatings Technology

View full text Add to dashboard Cite

show abstract

“…Alternative electrolytes such as methanesulfonic acid already used in redox flowcell [25] can be used in carbon/PbO 2 devices, leading to improved cycling ability [26].…”

Section: Activated Carbon/pbo 2 Devicesmentioning

confidence: 99%

Asymmetric and Hybrid Devices in Aqueous Electrolytes

Brousse¹,

Bélanger²,

Guay³

2013

Supercapacitors

Self Cite

View full text Add to dashboard Cite

IntroductionCarbon-based symmetrical electrochemical double-layer capacitors (EDLCs) demonstrate higher energy density and power capability in organic-based electrolytes compared to aqueous-based electrolytes owing to their high operating voltage (2.5-2.7 V). Indeed, despite a lower capacitance of carbon-based electrodes in organic electrolytes (C), the maximum energy density (E max ) is expressed asand is proportional to the square of the maximum operating voltage (U max ), which is limited to the water electrochemical stability window that cannot theoretically exceed 1.23 V. Thus, even if the capacitance of a symmetrical carbon-based device in an aqueous electrolyte is twice that of an EDLC in an organic electrolyte (C aq = 2C org ), the maximum operating voltage of an organic-based device is more than twice that of an aqueous-based capacitor (U org = 2U aq ) resulting in:Obviously, this simple calculation does not take into account additional factors such as electrolyte concentration, ionic conductivity, packaging, and so on, but some more detailed theoretical calculation [1] points out the superiority of symmetrical carbon-based EDLC in an organic electrolyte (5.7 vs 1.7 Wh kg −1 for symmetrical carbon-based devices in aqueous electrolytes). Practically, the superiority of organicbased carbon/carbon devices has been demonstrated and most commercial-based devices use organic electrolytes. However, aqueous-based devices possess a number of advantages that can be emphasized in a commercial system, such as their high ionic conductivity, which can be useful to achieve high power density [2,3]. In addition, the electrothermal safety of aqueous-based devices will be greater in all cases than for organic-based electrolytes [4], which is one of the major points now addressed by electrochemical capacitor (EC) manufacturers as high currents and fast cycling rates are usually required, thus possibly leading to thermal rather than chemical runaway of the

show abstract

“…Electrochemical oxidation is a promising technique that can be used for the electrochemical incineration of wastewaters, and has been intensively studied recently [1][2][3][4][5][6][7][8] . One of the most important requirements for electrochemical oxidation is finding a suitable electrode material.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Lead Dioxide Nanostructured Thin Films

Li¹,

Brachet²,

Ghasemi³

et al. 2014

IOSRJEN

View full text Add to dashboard Cite

-We report on the preparation of lead oxides nanostructured thin films by anodic and cathodic electrochemical deposition. The films were prepared using an aqueous electrolyte composed of lead chloride and nitric acid, without any catalyst. A controlled potential was applied through the electrolyte to deposit the lead oxide on gold coated silicon and on titanium foil. The formation of lead oxide nanostructures was strongly influenced by the applied potential, deposition temperature and solution pH. The role of these parameters on the synthesis of nanostructured lead dioxide was studied in detail, and enabled the determination of the optimal conditions for the fabrication of nanostructured lead dioxide thin films suitable for wastewater treatment.

show abstract

Carbon/PbO2 asymmetric electrochemical capacitor based on methanesulfonic acid electrolyte

Cited by 79 publications

References 33 publications

Versatile electrochemical coatings and surface layers from aqueous methanesulfonic acid

Versatile electrochemical coatings and surface layers from aqueous methanesulfonic acid

Asymmetric and Hybrid Devices in Aqueous Electrolytes

Electrochemical Deposition of Lead Dioxide Nanostructured Thin Films

Contact Info

Product

Resources

About