Reactions of oxygen and hydrogen peroxide at silver electrodes in alkaline solutions

Hurlen, T.; Sandler, Y. L.; Pantier, E. A.

doi:10.1016/0013-4686(66)80061-0

Cited by 44 publications

(18 citation statements)

References 9 publications

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“…Furthermore the actual faradic current at 0.9 V RHE is small; consequently the measured total current is highly subjective to the influence of the capacitive currents, which therefore must be considered. The Tafel slopes obtained for PC Ag correspond well to the literature values for PC Ag [3,24] and Ag single crystals [33]. Since in contrast to previous studies a compensation of R u was applied, increased activities and a linear Tafel slope were observed in a potential window of over 200 mV.…”

Section: Comparisonsupporting

confidence: 65%

“…Comparing the Ag data of this study with the literature, the TOF of PC Ag of 0.1 Hz at 0.9 V RHE is (as for PC Pt) up to one order of magnitude higher than previously reported [3,24,33]. Possible reasons for this are the complete reduction of Ag, the R u compensation and the applied subtraction of the capacitive current.…”

Section: Comparisonmentioning

confidence: 40%

“…Cycling below 0.0 V RHE results in a considerable increase in the ORR activity, which can be associated with the reduction of the Ag surface, as reported previously [3,24]. The lower potential limit of -0.3 V RHE was chosen since it leads to a maximised ORR activity of the Ag catalysts, while at the same time avoiding a major detachment of NP Ag from the GC electrode, which was observed at even lower potentials.…”

Section: Oxygen Reduction Activitymentioning

confidence: 87%

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Investigation of the Oxygen Reduction Activity on Silver – A Rotating Disc Electrode Study

2010

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In this study the oxygen reduction reaction (ORR) is investigated on a nanoparticulate silver electrocatalyst in alkaline solution. The catalytic activity of the catalyst is determined both in terms of mass activity as well as specific activity and turn over frequency, respectively. It is demonstrated that the established mass activities are independent of the applied catalyst loading, an essential requirement for a reasonable analysis. The determination of the electrochemically active surface area (ECA) or the number of electrochemically accessible sites (NECAS), respectively, is performed by the underpotential deposition of lead. The obtained value of the activity is compared to activities of polycrystalline silver and platinum measured in the same electrolyte, as well as to literature data.

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Section: Comparisonsupporting

confidence: 65%

Section: Comparisonmentioning

confidence: 40%

Section: Oxygen Reduction Activitymentioning

confidence: 87%

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Investigation of the Oxygen Reduction Activity on Silver – A Rotating Disc Electrode Study

2010

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“…23 Hence, the complex modified electrode shows excellent electrocatalytic effect on the redox of H 2 O 2.…”

Section: Methodsmentioning

confidence: 99%

Electrodeposition of Silver Nanoparticles on MWCNT Film Electrodes for Hydrogen Peroxide Sensing

Ding¹,

Jin²,

Yin³

2007

Chin. J. Chem.

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Silver (Ag) nanoparticles were directly electrodeposited on multi-walled carbon nanotubes (MWCNT) in AgNO 3 /LiNO 3 containing EDTA (ethylenediaminetetraacetic acid). The structure and nature of the resulting Ag/MWNT composite were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD), and the distribution shape of Ag nanoparticles was found to be dependent on the presence of EDTA. The modified electrode showed excellent electrocatalytic activity to redox reaction of hydrogen peroxide and the mechanism of hydrogen peroxide was partly reversible procession with oxidation and reduction peaks at 0.77 and -0.83 V, respectively. The oxidation and reduction peak currents were linearly related to hydrogen peroxide concentration in the range of 1×10 -6 -3×10 -4 and 1×10 -8 -7×10-4 mol•L -1 with correlation coefficients of 0.996 and 0.986, and 3s-detection limit of 9×10 -7 and 7×10 -9 mol•L -1 .

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“…Bianchi and Hurlen et al gave detailed descriptions of electrochemical reaction mechanism of hydrogen peroxide at Ag electrodes in alkaline media [24,25]. The rate constants of H 2 O 2 electrochemical reduction have also been evaluated by Merkulova and co-workers [8].…”

Section: Introductionmentioning

confidence: 97%

Novel nanoporous silver particles for electro-reduction of hydrogen peroxide in alkaline media

Niu

et al. 2011

Journal of Electroanalytical Chemistry

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Reactions of oxygen and hydrogen peroxide at silver electrodes in alkaline solutions

Cited by 44 publications

References 9 publications

Investigation of the Oxygen Reduction Activity on Silver – A Rotating Disc Electrode Study

Investigation of the Oxygen Reduction Activity on Silver – A Rotating Disc Electrode Study

Electrodeposition of Silver Nanoparticles on MWCNT Film Electrodes for Hydrogen Peroxide Sensing

Novel nanoporous silver particles for electro-reduction of hydrogen peroxide in alkaline media

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