Inhibition Effects in the Electrochemical Reduction of Hydrogen Peroxide on Sodium Tungsten Bronzes

1974 ◽  
Vol 52 (14) ◽  
pp. 2542-2545 ◽  
Author(s):  
Jean-Paul Randin
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Reduction ◽  
Cathodic Reduction ◽  
Inhibition Effect ◽  
Surface Sites ◽  
Sodium Tungsten ◽  
Cathodic Side ◽  
Current Maximum ◽  
Current Potential

An inhibition effect has been observed during the cathodic reduction of hydrogen peroxide on sodium tungsten bronzes (NaxWO3). The effect is explained as competition for available surface sites between hydrogen peroxide and protons. The competing reaction is believed to be the formation of hydrogen bronze (NaxHzWO3). The experimental current–potential relationships fit with the theoretical curves calculated under Langmuirian conditions of adsorption to a point 30–40 mV on the cathodic side of the current maximum.

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

Simultaneous growth of spherical, bipyramidal and wire-like gold nanostructures in solid and solution phases: SERS and electrocatalytic applications

CrystEngComm ◽  
2017 ◽  
Vol 19 (36) ◽  
pp. 5369-5380 ◽  
Author(s):  
N. S. K. Gowthaman ◽  
S. Abraham John
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Reduction ◽  
Gold Nanostructures ◽  
Anisotropic Growth ◽  
Growth Solution ◽  
Simultaneous Growth

Anisotropic growth of Au nanostructures including bipyramidal and nanowires on ITO substrate was achieved by in situ electrochemical reduction of Au+ ions from the growth solution. The AuNS grown ITO substrates were utilized for SERS and electrochemical reduction of hydrogen peroxide.

The electrochemical reduction of hydrogen peroxide on polycrystalline copper in borax buffer

1994 ◽  
Vol 374 (1-2) ◽  
pp. 179-187 ◽  
Author(s):  
M.V. Vazquez ◽  
S.R. de Sanchez ◽  
E.J. Calvo ◽  
D.J. Schiffrin
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Reduction ◽  
Polycrystalline Copper

scholarly journals Enhanced electrochemical reduction of hydrogen peroxide by Co3O4 nanowire electrode

2017 ◽  
Vol 28 (22) ◽  
pp. 16672-16678 ◽  
Author(s):  
Wonwoo Jeong ◽  
Cui-Lei Yin ◽  
Kwan San Hui ◽  
Kwun Nam Hui ◽  
Young Rae Cho ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Reduction

scholarly journals Surface Electrochemistry of Uranium Dioxide in Acidic Hydrogen Peroxide Solutions

2012 ◽  
Vol 1475 ◽  
Author(s):  
Mayuri Razdan ◽  
David Hall ◽  
David W. Shoesmith
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Layer ◽  
Electrochemical Reduction ◽  
Surface Diffusion ◽  
Uranium Dioxide ◽  
Electrode Surface ◽  
Surface Electrochemistry ◽  
Ph Range ◽  
Acidic Hydrogen

ABSTRACTThe electrochemical reduction of H2O2 on SIMFUEL was investigated over the pH range 1 to 4. The mechanism at pH 4 is known to occur on UV species incorporated into a surface layer of UIV1-2xUV2xO2+x. However, below pH 3, reduction occurs on an adsorbed UVO2(OH) state which is unstable and oxidizes to insulating UVI before dissolving as UO22+. Both schemes are observed at intermediate pH’s. The presence of both low and high acidic regions at the electrode surface is determined by the combination of peroxide concentration, bulk pH and the surface diffusion conditions.

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